diff options
247 files changed, 1409 insertions, 931 deletions
diff --git a/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt new file mode 100644 index 000000000000..9887b0724759 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.txt @@ -0,0 +1,38 @@ +Broadcom BCM2835 auxiliar SPI1/2 controller + +The BCM2835 contains two forms of SPI master controller, one known simply as +SPI0, and the other known as the "Universal SPI Master"; part of the +auxiliary block. This binding applies to the SPI1/2 controller. + +Required properties: +- compatible: Should be "brcm,bcm2835-aux-spi". +- reg: Should contain register location and length for the spi block +- interrupts: Should contain shared interrupt of the aux block +- clocks: The clock feeding the SPI controller - needs to + point to the auxiliar clock driver of the bcm2835, + as this clock will enable the output gate for the specific + clock. +- cs-gpios: the cs-gpios (native cs is NOT supported) + see also spi-bus.txt + +Example: + +spi1@7e215080 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e215080 0x40>; + interrupts = <1 29>; + clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI1>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 18>, <&gpio 17>, <&gpio 16>; +}; + +spi2@7e2150c0 { + compatible = "brcm,bcm2835-aux-spi"; + reg = <0x7e2150c0 0x40>; + interrupts = <1 29>; + clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI2>; + #address-cells = <1>; + #size-cells = <0>; + cs-gpios = <&gpio 43>, <&gpio 44>, <&gpio 45>; +}; diff --git a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt index 6160ffbcb3d3..ce363c923f44 100644 --- a/Documentation/devicetree/bindings/spi/spi-mt65xx.txt +++ b/Documentation/devicetree/bindings/spi/spi-mt65xx.txt @@ -29,8 +29,11 @@ Required properties: muxes clock, and "spi-clk" for the clock gate. Optional properties: +-cs-gpios: see spi-bus.txt, only required for MT8173. + - mediatek,pad-select: specify which pins group(ck/mi/mo/cs) spi - controller used, this value should be 0~3, only required for MT8173. + controller used. This is a array, the element value should be 0~3, + only required for MT8173. 0: specify GPIO69,70,71,72 for spi pins. 1: specify GPIO102,103,104,105 for spi pins. 2: specify GPIO128,129,130,131 for spi pins. @@ -49,7 +52,7 @@ spi: spi@1100a000 { <&topckgen CLK_TOP_SPI_SEL>, <&pericfg CLK_PERI_SPI0>; clock-names = "parent-clk", "sel-clk", "spi-clk"; - - mediatek,pad-select = <0>; + cs-gpios = <&pio 105 GPIO_ACTIVE_LOW>, <&pio 72 GPIO_ACTIVE_LOW>; + mediatek,pad-select = <1>, <0>; status = "disabled"; }; diff --git a/arch/arm/mach-u300/dummyspichip.c b/arch/arm/mach-u300/dummyspichip.c index 131996805690..68fe986ca42e 100644 --- a/arch/arm/mach-u300/dummyspichip.c +++ b/arch/arm/mach-u300/dummyspichip.c @@ -264,7 +264,6 @@ static const struct of_device_id pl022_dummy_dt_match[] = { static struct spi_driver pl022_dummy_driver = { .driver = { .name = "spi-dummy", - .owner = THIS_MODULE, .of_match_table = pl022_dummy_dt_match, }, .probe = pl022_dummy_probe, diff --git a/arch/mips/bcm63xx/dev-spi.c b/arch/mips/bcm63xx/dev-spi.c index ad448e41e3bd..232385441e46 100644 --- a/arch/mips/bcm63xx/dev-spi.c +++ b/arch/mips/bcm63xx/dev-spi.c @@ -18,29 +18,6 @@ #include <bcm63xx_dev_spi.h> #include <bcm63xx_regs.h> -/* - * register offsets - */ -static const unsigned long bcm6348_regs_spi[] = { - __GEN_SPI_REGS_TABLE(6348) -}; - -static const unsigned long bcm6358_regs_spi[] = { - __GEN_SPI_REGS_TABLE(6358) -}; - -const unsigned long *bcm63xx_regs_spi; -EXPORT_SYMBOL(bcm63xx_regs_spi); - -static __init void bcm63xx_spi_regs_init(void) -{ - if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) - bcm63xx_regs_spi = bcm6348_regs_spi; - if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || - BCMCPU_IS_6362() || BCMCPU_IS_6368()) - bcm63xx_regs_spi = bcm6358_regs_spi; -} - static struct resource spi_resources[] = { { .start = -1, /* filled at runtime */ @@ -53,19 +30,10 @@ static struct resource spi_resources[] = { }, }; -static struct bcm63xx_spi_pdata spi_pdata = { - .bus_num = 0, - .num_chipselect = 8, -}; - static struct platform_device bcm63xx_spi_device = { - .name = "bcm63xx-spi", .id = -1, .num_resources = ARRAY_SIZE(spi_resources), .resource = spi_resources, - .dev = { - .platform_data = &spi_pdata, - }, }; int __init bcm63xx_spi_register(void) @@ -78,21 +46,15 @@ int __init bcm63xx_spi_register(void) spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI); if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) { + bcm63xx_spi_device.name = "bcm6348-spi", spi_resources[0].end += BCM_6348_RSET_SPI_SIZE - 1; - spi_pdata.fifo_size = SPI_6348_MSG_DATA_SIZE; - spi_pdata.msg_type_shift = SPI_6348_MSG_TYPE_SHIFT; - spi_pdata.msg_ctl_width = SPI_6348_MSG_CTL_WIDTH; } if (BCMCPU_IS_3368() || BCMCPU_IS_6358() || BCMCPU_IS_6362() || BCMCPU_IS_6368()) { + bcm63xx_spi_device.name = "bcm6358-spi", spi_resources[0].end += BCM_6358_RSET_SPI_SIZE - 1; - spi_pdata.fifo_size = SPI_6358_MSG_DATA_SIZE; - spi_pdata.msg_type_shift = SPI_6358_MSG_TYPE_SHIFT; - spi_pdata.msg_ctl_width = SPI_6358_MSG_CTL_WIDTH; } - bcm63xx_spi_regs_init(); - return platform_device_register(&bcm63xx_spi_device); } diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h index 25737655d141..dd299548860d 100644 --- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h @@ -7,48 +7,4 @@ int __init bcm63xx_spi_register(void); -struct bcm63xx_spi_pdata { - unsigned int fifo_size; - unsigned int msg_type_shift; - unsigned int msg_ctl_width; - int bus_num; - int num_chipselect; -}; - -enum bcm63xx_regs_spi { - SPI_CMD, - SPI_INT_STATUS, - SPI_INT_MASK_ST, - SPI_INT_MASK, - SPI_ST, - SPI_CLK_CFG, - SPI_FILL_BYTE, - SPI_MSG_TAIL, - SPI_RX_TAIL, - SPI_MSG_CTL, - SPI_MSG_DATA, - SPI_RX_DATA, -}; - -#define __GEN_SPI_REGS_TABLE(__cpu) \ - [SPI_CMD] = SPI_## __cpu ##_CMD, \ - [SPI_INT_STATUS] = SPI_## __cpu ##_INT_STATUS, \ - [SPI_INT_MASK_ST] = SPI_## __cpu ##_INT_MASK_ST, \ - [SPI_INT_MASK] = SPI_## __cpu ##_INT_MASK, \ - [SPI_ST] = SPI_## __cpu ##_ST, \ - [SPI_CLK_CFG] = SPI_## __cpu ##_CLK_CFG, \ - [SPI_FILL_BYTE] = SPI_## __cpu ##_FILL_BYTE, \ - [SPI_MSG_TAIL] = SPI_## __cpu ##_MSG_TAIL, \ - [SPI_RX_TAIL] = SPI_## __cpu ##_RX_TAIL, \ - [SPI_MSG_CTL] = SPI_## __cpu ##_MSG_CTL, \ - [SPI_MSG_DATA] = SPI_## __cpu ##_MSG_DATA, \ - [SPI_RX_DATA] = SPI_## __cpu ##_RX_DATA, - -static inline unsigned long bcm63xx_spireg(enum bcm63xx_regs_spi reg) -{ - extern const unsigned long *bcm63xx_regs_spi; - - return bcm63xx_regs_spi[reg]; -} - #endif /* BCM63XX_DEV_SPI_H */ diff --git a/arch/mips/txx9/generic/spi_eeprom.c b/arch/mips/txx9/generic/spi_eeprom.c index 3dbad99d5611..d833dd2c9b55 100644 --- a/arch/mips/txx9/generic/spi_eeprom.c +++ b/arch/mips/txx9/generic/spi_eeprom.c @@ -80,7 +80,6 @@ static int __init early_seeprom_probe(struct spi_device *spi) static struct spi_driver early_seeprom_driver __initdata = { .driver = { .name = "at25", - .owner = THIS_MODULE, }, .probe = early_seeprom_probe, }; diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c index f0184a1b0c1c..f974c945c97a 100644 --- a/drivers/char/tpm/st33zp24/spi.c +++ b/drivers/char/tpm/st33zp24/spi.c @@ -381,7 +381,6 @@ static SIMPLE_DEV_PM_OPS(st33zp24_spi_ops, st33zp24_pm_suspend, static struct spi_driver tpm_st33_spi_driver = { .driver = { - .owner = THIS_MODULE, .name = TPM_ST33_SPI, .pm = &st33zp24_spi_ops, .of_match_table = of_match_ptr(of_st33zp24_spi_match), diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c index e3d968f751f1..60172f835d15 100644 --- a/drivers/gpio/gpio-74x164.c +++ b/drivers/gpio/gpio-74x164.c @@ -183,7 +183,6 @@ MODULE_DEVICE_TABLE(of, gen_74x164_dt_ids); static struct spi_driver gen_74x164_driver = { .driver = { .name = "74x164", - .owner = THIS_MODULE, .of_match_table = gen_74x164_dt_ids, }, .probe = gen_74x164_probe, diff --git a/drivers/gpio/gpio-max7301.c b/drivers/gpio/gpio-max7301.c index 6e1c984a75d4..05813fbf3daf 100644 --- a/drivers/gpio/gpio-max7301.c +++ b/drivers/gpio/gpio-max7301.c @@ -87,7 +87,6 @@ MODULE_DEVICE_TABLE(spi, max7301_id); static struct spi_driver max7301_driver = { .driver = { .name = "max7301", - .owner = THIS_MODULE, }, .probe = max7301_probe, .remove = max7301_remove, diff --git a/drivers/gpio/gpio-mc33880.c b/drivers/gpio/gpio-mc33880.c index a431604c9e67..2853731db5bc 100644 --- a/drivers/gpio/gpio-mc33880.c +++ b/drivers/gpio/gpio-mc33880.c @@ -163,7 +163,6 @@ static int mc33880_remove(struct spi_device *spi) static struct spi_driver mc33880_driver = { .driver = { .name = DRIVER_NAME, - .owner = THIS_MODULE, }, .probe = mc33880_probe, .remove = mc33880_remove, diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 73db7ecd7ffd..4a41694919da 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -848,7 +848,6 @@ MODULE_DEVICE_TABLE(i2c, mcp230xx_id); static struct i2c_driver mcp230xx_driver = { .driver = { .name = "mcp230xx", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(mcp23s08_i2c_of_match), }, .probe = mcp230xx_probe, @@ -1021,7 +1020,6 @@ static struct spi_driver mcp23s08_driver = { .id_table = mcp23s08_ids, .driver = { .name = "mcp23s08", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(mcp23s08_spi_of_match), }, }; diff --git a/drivers/gpu/drm/panel/panel-lg-lg4573.c b/drivers/gpu/drm/panel/panel-lg-lg4573.c index a7b4939cee6d..6989238b276a 100644 --- a/drivers/gpu/drm/panel/panel-lg-lg4573.c +++ b/drivers/gpu/drm/panel/panel-lg-lg4573.c @@ -287,7 +287,6 @@ static struct spi_driver lg4573_driver = { .remove = lg4573_remove, .driver = { .name = "lg4573", - .owner = THIS_MODULE, .of_match_table = lg4573_of_match, }, }; diff --git a/drivers/gpu/drm/panel/panel-samsung-ld9040.c b/drivers/gpu/drm/panel/panel-samsung-ld9040.c index b202377135e7..3cf4cf6a6942 100644 --- a/drivers/gpu/drm/panel/panel-samsung-ld9040.c +++ b/drivers/gpu/drm/panel/panel-samsung-ld9040.c @@ -378,7 +378,6 @@ static struct spi_driver ld9040_driver = { .remove = ld9040_remove, .driver = { .name = "panel-samsung-ld9040", - .owner = THIS_MODULE, .of_match_table = ld9040_of_match, }, }; diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index 11955467fc0f..202c1fbb3407 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -157,7 +157,6 @@ MODULE_DEVICE_TABLE(spi, ad7314_id); static struct spi_driver ad7314_driver = { .driver = { .name = "ad7314", - .owner = THIS_MODULE, }, .probe = ad7314_probe, .remove = ad7314_remove, diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c index 04c08c2f79b8..69e0bb97e597 100644 --- a/drivers/hwmon/adcxx.c +++ b/drivers/hwmon/adcxx.c @@ -234,7 +234,6 @@ MODULE_DEVICE_TABLE(spi, adcxx_ids); static struct spi_driver adcxx_driver = { .driver = { .name = "adcxx", - .owner = THIS_MODULE, }, .id_table = adcxx_ids, .probe = adcxx_probe, diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c index 3eff73b6220d..4fd9e4de1972 100644 --- a/drivers/hwmon/ads7871.c +++ b/drivers/hwmon/ads7871.c @@ -237,7 +237,6 @@ static int ads7871_remove(struct spi_device *spi) static struct spi_driver ads7871_driver = { .driver = { .name = DEVICE_NAME, - .owner = THIS_MODULE, }, .probe = ads7871_probe, diff --git a/drivers/hwmon/adt7310.c b/drivers/hwmon/adt7310.c index 5994cf68e0a4..ec02f4f0d67a 100644 --- a/drivers/hwmon/adt7310.c +++ b/drivers/hwmon/adt7310.c @@ -104,7 +104,6 @@ MODULE_DEVICE_TABLE(spi, adt7310_id); static struct spi_driver adt7310_driver = { .driver = { .name = "adt7310", - .owner = THIS_MODULE, .pm = ADT7X10_DEV_PM_OPS, }, .probe = adt7310_spi_probe, diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c index 9296e9daf774..583f883a4cfe 100644 --- a/drivers/hwmon/lm70.c +++ b/drivers/hwmon/lm70.c @@ -199,7 +199,6 @@ MODULE_DEVICE_TABLE(spi, lm70_ids); static struct spi_driver lm70_driver = { .driver = { .name = "lm70", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(lm70_of_ids), }, .id_table = lm70_ids, diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c index f67d71ee8386..36544c4f653c 100644 --- a/drivers/hwmon/max1111.c +++ b/drivers/hwmon/max1111.c @@ -277,7 +277,6 @@ MODULE_DEVICE_TABLE(spi, max1111_ids); static struct spi_driver max1111_driver = { .driver = { .name = "max1111", - .owner = THIS_MODULE, }, .id_table = max1111_ids, .probe = max1111_probe, diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c index 98ba761cbb9c..923f56598d4b 100644 --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -263,7 +263,6 @@ MODULE_DEVICE_TABLE(spi, kxsd9_id); static struct spi_driver kxsd9_driver = { .driver = { .name = "kxsd9", - .owner = THIS_MODULE, }, .probe = kxsd9_probe, .remove = kxsd9_remove, diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c index 54b61a3961c3..f71b0d391272 100644 --- a/drivers/iio/accel/st_accel_spi.c +++ b/drivers/iio/accel/st_accel_spi.c @@ -64,7 +64,6 @@ MODULE_DEVICE_TABLE(spi, st_accel_id_table); static struct spi_driver st_accel_driver = { .driver = { - .owner = THIS_MODULE, .name = "st-accel-spi", }, .probe = st_accel_spi_probe, diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 70f78c3062a7..21e19b60e2b9 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -509,7 +509,6 @@ MODULE_DEVICE_TABLE(spi, ad7266_id); static struct spi_driver ad7266_driver = { .driver = { .name = "ad7266", - .owner = THIS_MODULE, }, .probe = ad7266_probe, .remove = ad7266_remove, diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index 4a8c0a2f49b6..62bb8f7ce4a0 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -378,7 +378,6 @@ MODULE_DEVICE_TABLE(spi, ad7298_id); static struct spi_driver ad7298_driver = { .driver = { .name = "ad7298", - .owner = THIS_MODULE, }, .probe = ad7298_probe, .remove = ad7298_remove, diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index ce400ec176f1..be85c2a0ad97 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -302,7 +302,6 @@ MODULE_DEVICE_TABLE(spi, ad7476_id); static struct spi_driver ad7476_driver = { .driver = { .name = "ad7476", - .owner = THIS_MODULE, }, .probe = ad7476_probe, .remove = ad7476_remove, diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c index c19f8fd1b4b7..cf172d58cd44 100644 --- a/drivers/iio/adc/ad7791.c +++ b/drivers/iio/adc/ad7791.c @@ -440,7 +440,6 @@ MODULE_DEVICE_TABLE(spi, ad7791_spi_ids); static struct spi_driver ad7791_driver = { .driver = { .name = "ad7791", - .owner = THIS_MODULE, }, .probe = ad7791_probe, .remove = ad7791_remove, diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c index b84922a4b32e..eea0c79111e7 100644 --- a/drivers/iio/adc/ad7793.c +++ b/drivers/iio/adc/ad7793.c @@ -852,7 +852,6 @@ MODULE_DEVICE_TABLE(spi, ad7793_id); static struct spi_driver ad7793_driver = { .driver = { .name = "ad7793", - .owner = THIS_MODULE, }, .probe = ad7793_probe, .remove = ad7793_remove, diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c index 2fd012ee99f5..2d3c397e66ad 100644 --- a/drivers/iio/adc/ad7887.c +++ b/drivers/iio/adc/ad7887.c @@ -356,7 +356,6 @@ MODULE_DEVICE_TABLE(spi, ad7887_id); static struct spi_driver ad7887_driver = { .driver = { .name = "ad7887", - .owner = THIS_MODULE, }, .probe = ad7887_probe, .remove = ad7887_remove, diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index 28732c28e819..45e29ccd824f 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -357,7 +357,6 @@ MODULE_DEVICE_TABLE(spi, ad7923_id); static struct spi_driver ad7923_driver = { .driver = { .name = "ad7923", - .owner = THIS_MODULE, }, .probe = ad7923_probe, .remove = ad7923_remove, diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 54a8302aaace..41d495c6035e 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -509,7 +509,6 @@ static struct spi_driver max1027_driver = { .driver = { .name = "max1027", .of_match_table = of_match_ptr(max1027_adc_dt_ids), - .owner = THIS_MODULE, }, .probe = max1027_probe, .remove = max1027_remove, diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c index 41a21e986c1a..8569c8e1f4b2 100644 --- a/drivers/iio/adc/mcp320x.c +++ b/drivers/iio/adc/mcp320x.c @@ -405,7 +405,6 @@ static struct spi_driver mcp320x_driver = { .driver = { .name = "mcp320x", .of_match_table = of_match_ptr(mcp320x_dt_ids), - .owner = THIS_MODULE, }, .probe = mcp320x_probe, .remove = mcp320x_remove, diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index 98c0d2b444bf..ff6f7f63c8d9 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -192,7 +192,6 @@ static struct spi_driver adc128_driver = { .driver = { .name = "adc128s052", .of_match_table = of_match_ptr(adc128_of_match), - .owner = THIS_MODULE, }, .probe = adc128_probe, .remove = adc128_remove, diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c index 32b82a2dc894..102c7174da5b 100644 --- a/drivers/iio/amplifiers/ad8366.c +++ b/drivers/iio/amplifiers/ad8366.c @@ -200,7 +200,6 @@ MODULE_DEVICE_TABLE(spi, ad8366_id); static struct spi_driver ad8366_driver = { .driver = { .name = KBUILD_MODNAME, - .owner = THIS_MODULE, }, .probe = ad8366_probe, .remove = ad8366_remove, diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c index d338bb595db3..ea7adb638d99 100644 --- a/drivers/iio/common/ssp_sensors/ssp_dev.c +++ b/drivers/iio/common/ssp_sensors/ssp_dev.c @@ -700,7 +700,6 @@ static struct spi_driver ssp_driver = { .remove = ssp_remove, .driver = { .pm = &ssp_pm_ops, - .owner = THIS_MODULE, .of_match_table = of_match_ptr(ssp_of_match), .name = "sensorhub" }, diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c index c067e6821496..9e4d2c18b554 100644 --- a/drivers/iio/dac/ad5064.c +++ b/drivers/iio/dac/ad5064.c @@ -568,7 +568,6 @@ MODULE_DEVICE_TABLE(spi, ad5064_spi_ids); static struct spi_driver ad5064_spi_driver = { .driver = { .name = "ad5064", - .owner = THIS_MODULE, }, .probe = ad5064_spi_probe, .remove = ad5064_spi_remove, diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c index 64634d7f578e..8ba0e9c50176 100644 --- a/drivers/iio/dac/ad5360.c +++ b/drivers/iio/dac/ad5360.c @@ -549,7 +549,6 @@ MODULE_DEVICE_TABLE(spi, ad5360_ids); static struct spi_driver ad5360_driver = { .driver = { .name = "ad5360", - .owner = THIS_MODULE, }, .probe = ad5360_probe, .remove = ad5360_remove, diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c index 130de9b3e0bf..97d2c5111f43 100644 --- a/drivers/iio/dac/ad5380.c +++ b/drivers/iio/dac/ad5380.c @@ -519,7 +519,6 @@ MODULE_DEVICE_TABLE(spi, ad5380_spi_ids); static struct spi_driver ad5380_spi_driver = { .driver = { .name = "ad5380", - .owner = THIS_MODULE, }, .probe = ad5380_spi_probe, .remove = ad5380_spi_remove, diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c index 787ef1d859c6..968712be967f 100644 --- a/drivers/iio/dac/ad5421.c +++ b/drivers/iio/dac/ad5421.c @@ -524,7 +524,6 @@ static int ad5421_probe(struct spi_device *spi) static struct spi_driver ad5421_driver = { .driver = { .name = "ad5421", - .owner = THIS_MODULE, }, .probe = ad5421_probe, }; diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 07e17d72a3f3..b555552a0d80 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -481,7 +481,6 @@ static int ad5446_spi_remove(struct spi_device *spi) static struct spi_driver ad5446_spi_driver = { .driver = { .name = "ad5446", - .owner = THIS_MODULE, }, .probe = ad5446_spi_probe, .remove = ad5446_spi_remove, diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c index 64d7256cbb6d..5f3202339420 100644 --- a/drivers/iio/dac/ad5449.c +++ b/drivers/iio/dac/ad5449.c @@ -356,7 +356,6 @@ MODULE_DEVICE_TABLE(spi, ad5449_spi_ids); static struct spi_driver ad5449_spi_driver = { .driver = { .name = "ad5449", - .owner = THIS_MODULE, }, .probe = ad5449_spi_probe, .remove = ad5449_spi_remove, diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c index e6e9756580af..4e4c20d6d8b5 100644 --- a/drivers/iio/dac/ad5504.c +++ b/drivers/iio/dac/ad5504.c @@ -363,7 +363,6 @@ MODULE_DEVICE_TABLE(spi, ad5504_id); static struct spi_driver ad5504_driver = { .driver = { .name = "ad5504", - .owner = THIS_MODULE, }, .probe = ad5504_probe, .remove = ad5504_remove, diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c index e98428df0d44..5489ec43b95d 100644 --- a/drivers/iio/dac/ad5624r_spi.c +++ b/drivers/iio/dac/ad5624r_spi.c @@ -306,7 +306,6 @@ MODULE_DEVICE_TABLE(spi, ad5624r_id); static struct spi_driver ad5624r_driver = { .driver = { .name = "ad5624r", - .owner = THIS_MODULE, }, .probe = ad5624r_probe, .remove = ad5624r_remove, diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index 15c73e20272d..d1d8450c19f6 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -395,7 +395,6 @@ MODULE_DEVICE_TABLE(spi, ad5686_id); static struct spi_driver ad5686_driver = { .driver = { .name = "ad5686", - .owner = THIS_MODULE, }, .probe = ad5686_probe, .remove = ad5686_remove, diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c index a7c851f62d7c..bfb350a85a16 100644 --- a/drivers/iio/dac/ad5755.c +++ b/drivers/iio/dac/ad5755.c @@ -610,7 +610,6 @@ MODULE_DEVICE_TABLE(spi, ad5755_id); static struct spi_driver ad5755_driver = { .driver = { .name = "ad5755", - .owner = THIS_MODULE, }, .probe = ad5755_probe, .id_table = ad5755_id, diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c index d0d38165339d..9a547bbf7d2b 100644 --- a/drivers/iio/dac/ad5764.c +++ b/drivers/iio/dac/ad5764.c @@ -357,7 +357,6 @@ MODULE_DEVICE_TABLE(spi, ad5764_ids); static struct spi_driver ad5764_driver = { .driver = { .name = "ad5764", - .owner = THIS_MODULE, }, .probe = ad5764_probe, .remove = ad5764_remove, diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c index 5ba785f18589..33e4ae5c42f8 100644 --- a/drivers/iio/dac/ad5791.c +++ b/drivers/iio/dac/ad5791.c @@ -461,7 +461,6 @@ MODULE_DEVICE_TABLE(spi, ad5791_id); static struct spi_driver ad5791_driver = { .driver = { .name = "ad5791", - .owner = THIS_MODULE, }, .probe = ad5791_probe, .remove = ad5791_remove, diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index 18a4ad5ff8c5..e690dd11e99f 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -297,7 +297,6 @@ static struct spi_driver ad7303_driver = { .driver = { .name = "ad7303", .of_match_table = of_match_ptr(ad7303_spi_of_match), - .owner = THIS_MODULE, }, .probe = ad7303_probe, .remove = ad7303_remove, diff --git a/drivers/iio/dac/mcp4922.c b/drivers/iio/dac/mcp4922.c index 92cf4ca6981d..3854d201a5d6 100644 --- a/drivers/iio/dac/mcp4922.c +++ b/drivers/iio/dac/mcp4922.c @@ -203,7 +203,6 @@ MODULE_DEVICE_TABLE(spi, mcp4922_id); static struct spi_driver mcp4922_driver = { .driver = { .name = "mcp4922", - .owner = THIS_MODULE, }, .probe = mcp4922_probe, .remove = mcp4922_remove, diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index 50ed8d1ca45a..44a30f286de1 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -1027,7 +1027,6 @@ MODULE_DEVICE_TABLE(spi, ad9523_id); static struct spi_driver ad9523_driver = { .driver = { .name = "ad9523", - .owner = THIS_MODULE, }, .probe = ad9523_probe, .remove = ad9523_remove, diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index 73f27e0a08dd..d2d824b446f5 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -634,7 +634,6 @@ static struct spi_driver adf4350_driver = { .driver = { .name = "adf4350", .of_match_table = of_match_ptr(adf4350_of_match), - .owner = THIS_MODULE, }, .probe = adf4350_probe, .remove = adf4350_remove, diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c index add509837269..ad31a1372a04 100644 --- a/drivers/iio/gyro/adis16080.c +++ b/drivers/iio/gyro/adis16080.c @@ -228,7 +228,6 @@ MODULE_DEVICE_TABLE(spi, adis16080_ids); static struct spi_driver adis16080_driver = { .driver = { .name = "adis16080", - .owner = THIS_MODULE, }, .probe = adis16080_probe, .remove = adis16080_remove, diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c index 8d08c7ed1ea6..e5241f41e65e 100644 --- a/drivers/iio/gyro/adis16130.c +++ b/drivers/iio/gyro/adis16130.c @@ -167,7 +167,6 @@ static int adis16130_probe(struct spi_device *spi) static struct spi_driver adis16130_driver = { .driver = { .name = "adis16130", - .owner = THIS_MODULE, }, .probe = adis16130_probe, }; diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c index 26de876b223d..f8d1c2210066 100644 --- a/drivers/iio/gyro/adis16136.c +++ b/drivers/iio/gyro/adis16136.c @@ -570,7 +570,6 @@ MODULE_DEVICE_TABLE(spi, adis16136_ids); static struct spi_driver adis16136_driver = { .driver = { .name = "adis16136", - .owner = THIS_MODULE, }, .id_table = adis16136_ids, .probe = adis16136_probe, diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index 00c6ad9bf35f..7da8825f4791 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -435,7 +435,6 @@ MODULE_DEVICE_TABLE(spi, adis16260_id); static struct spi_driver adis16260_driver = { .driver = { .name = "adis16260", - .owner = THIS_MODULE, }, .probe = adis16260_probe, .remove = adis16260_remove, diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c index eb0e08ec9e20..a330d4288bb0 100644 --- a/drivers/iio/gyro/adxrs450.c +++ b/drivers/iio/gyro/adxrs450.c @@ -456,7 +456,6 @@ MODULE_DEVICE_TABLE(spi, adxrs450_id); static struct spi_driver adxrs450_driver = { .driver = { .name = "adxrs450", - .owner = THIS_MODULE, }, .probe = adxrs450_probe, .id_table = adxrs450_id, diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c index e59bead6bc3c..d2b7a5fa344c 100644 --- a/drivers/iio/gyro/st_gyro_spi.c +++ b/drivers/iio/gyro/st_gyro_spi.c @@ -60,7 +60,6 @@ MODULE_DEVICE_TABLE(spi, st_gyro_id_table); static struct spi_driver st_gyro_driver = { .driver = { - .owner = THIS_MODULE, .name = "st-gyro-spi", }, .probe = st_gyro_spi_probe, diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c index abc4c50de9e8..0618f831ecd4 100644 --- a/drivers/iio/imu/adis16400_core.c +++ b/drivers/iio/imu/adis16400_core.c @@ -986,7 +986,6 @@ MODULE_DEVICE_TABLE(spi, adis16400_id); static struct spi_driver adis16400_driver = { .driver = { .name = "adis16400", - .owner = THIS_MODULE, }, .id_table = adis16400_id, .probe = adis16400_probe, diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index b94bfd3f595b..2485b88ee1b6 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -896,7 +896,6 @@ MODULE_DEVICE_TABLE(spi, adis16480_ids); static struct spi_driver adis16480_driver = { .driver = { .name = "adis16480", - .owner = THIS_MODULE, }, .id_table = adis16480_ids, .probe = adis16480_probe, diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c index 0abca2c6afa6..6325e7dc8e03 100644 --- a/drivers/iio/magnetometer/st_magn_spi.c +++ b/drivers/iio/magnetometer/st_magn_spi.c @@ -58,7 +58,6 @@ MODULE_DEVICE_TABLE(spi, st_magn_id_table); static struct spi_driver st_magn_driver = { .driver = { - .owner = THIS_MODULE, .name = "st-magn-spi", }, .probe = st_magn_spi_probe, diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 08ee6e88c79f..aaa0c4ba91a7 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -117,7 +117,6 @@ MODULE_DEVICE_TABLE(spi, ms5611_id); static struct spi_driver ms5611_driver = { .driver = { .name = "ms5611", - .owner = THIS_MODULE, }, .id_table = ms5611_id, .probe = ms5611_spi_probe, diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c index 1ffa6d4d349c..40c0692ff1de 100644 --- a/drivers/iio/pressure/st_pressure_spi.c +++ b/drivers/iio/pressure/st_pressure_spi.c @@ -56,7 +56,6 @@ MODULE_DEVICE_TABLE(spi, st_press_id_table); static struct spi_driver st_press_driver = { .driver = { - .owner = THIS_MODULE, .name = "st-press-spi", }, .probe = st_press_spi_probe, diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index e95035136889..f4d29d5dbd5f 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -450,7 +450,6 @@ static struct spi_driver as3935_driver = { .driver = { .name = "as3935", .of_match_table = of_match_ptr(as3935_of_match), - .owner = THIS_MODULE, .pm = AS3935_PM_OPS, }, .probe = as3935_probe, diff --git a/drivers/input/misc/ad714x-spi.c b/drivers/input/misc/ad714x-spi.c index a79e50b58bf5..fea315e76bc8 100644 --- a/drivers/input/misc/ad714x-spi.c +++ b/drivers/input/misc/ad714x-spi.c @@ -113,7 +113,6 @@ static int ad714x_spi_remove(struct spi_device *spi) static struct spi_driver ad714x_spi_driver = { .driver = { .name = "ad714x_captouch", - .owner = THIS_MODULE, .pm = &ad714x_spi_pm, }, .probe = ad714x_spi_probe, diff --git a/drivers/input/misc/adxl34x-spi.c b/drivers/input/misc/adxl34x-spi.c index da6e76b58dab..3ec03ad88eed 100644 --- a/drivers/input/misc/adxl34x-spi.c +++ b/drivers/input/misc/adxl34x-spi.c @@ -120,7 +120,6 @@ static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend, static struct spi_driver adxl34x_driver = { .driver = { .name = "adxl34x", - .owner = THIS_MODULE, .pm = &adxl34x_spi_pm, }, .probe = adxl34x_spi_probe, diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index da4e5bb5e045..9c250ae780d9 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -843,7 +843,6 @@ static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume); static struct spi_driver ad7877_driver = { .driver = { .name = "ad7877", - .owner = THIS_MODULE, .pm = &ad7877_pm, }, .probe = ad7877_probe, diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c index 1a7b1143536e..48033c2689ab 100644 --- a/drivers/input/touchscreen/ad7879-spi.c +++ b/drivers/input/touchscreen/ad7879-spi.c @@ -149,7 +149,6 @@ static int ad7879_spi_remove(struct spi_device *spi) static struct spi_driver ad7879_spi_driver = { .driver = { .name = "ad7879", - .owner = THIS_MODULE, .pm = &ad7879_pm_ops, }, .probe = ad7879_spi_probe, diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 04edc8f7122f..e431cf63a85d 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -1500,7 +1500,6 @@ static int ads7846_remove(struct spi_device *spi) static struct spi_driver ads7846_driver = { .driver = { .name = "ads7846", - .owner = THIS_MODULE, .pm = &ads7846_pm, .of_match_table = of_match_ptr(ads7846_dt_ids), }, diff --git a/drivers/input/touchscreen/cyttsp4_spi.c b/drivers/input/touchscreen/cyttsp4_spi.c index b19434cebbf6..ec5f7c74f048 100644 --- a/drivers/input/touchscreen/cyttsp4_spi.c +++ b/drivers/input/touchscreen/cyttsp4_spi.c @@ -185,7 +185,6 @@ static int cyttsp4_spi_remove(struct spi_device *spi) static struct spi_driver cyttsp4_spi_driver = { .driver = { .name = CYTTSP4_SPI_NAME, - .owner = THIS_MODULE, .pm = &cyttsp4_pm_ops, }, .probe = cyttsp4_spi_probe, diff --git a/drivers/input/touchscreen/cyttsp_spi.c b/drivers/input/touchscreen/cyttsp_spi.c index 4728bcb1916c..bbeeb2488b57 100644 --- a/drivers/input/touchscreen/cyttsp_spi.c +++ b/drivers/input/touchscreen/cyttsp_spi.c @@ -182,7 +182,6 @@ static int cyttsp_spi_remove(struct spi_device *spi) static struct spi_driver cyttsp_spi_driver = { .driver = { .name = CY_SPI_NAME, - .owner = THIS_MODULE, .pm = &cyttsp_pm_ops, }, .probe = cyttsp_spi_probe, diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index 0f65d02eeb26..f41f23318484 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -752,7 +752,6 @@ static SIMPLE_DEV_PM_OPS(tsc2005_pm_ops, tsc2005_suspend, tsc2005_resume); static struct spi_driver tsc2005_driver = { .driver = { .name = "tsc2005", - .owner = THIS_MODULE, .pm = &tsc2005_pm_ops, }, .probe = tsc2005_probe, diff --git a/drivers/leds/leds-dac124s085.c b/drivers/leds/leds-dac124s085.c index db3ba8b42517..314159610d24 100644 --- a/drivers/leds/leds-dac124s085.c +++ b/drivers/leds/leds-dac124s085.c @@ -122,7 +122,6 @@ static struct spi_driver dac124s085_driver = { .remove = dac124s085_remove, .driver = { .name = "dac124s085", - .owner = THIS_MODULE, }, }; diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-spi.c b/drivers/media/i2c/s5c73m3/s5c73m3-spi.c index 17ac4417fb17..72ef9f936e6c 100644 --- a/drivers/media/i2c/s5c73m3/s5c73m3-spi.c +++ b/drivers/media/i2c/s5c73m3/s5c73m3-spi.c @@ -150,7 +150,6 @@ int s5c73m3_register_spi_driver(struct s5c73m3 *state) spidrv->remove = s5c73m3_spi_remove; spidrv->probe = s5c73m3_spi_probe; spidrv->driver.name = S5C73M3_SPI_DRV_NAME; - spidrv->driver.owner = THIS_MODULE; spidrv->driver.of_match_table = s5c73m3_spi_ids; return spi_register_driver(spidrv); diff --git a/drivers/media/tuners/msi001.c b/drivers/media/tuners/msi001.c index b533240f8ec0..3a12ef35682b 100644 --- a/drivers/media/tuners/msi001.c +++ b/drivers/media/tuners/msi001.c @@ -513,7 +513,6 @@ MODULE_DEVICE_TABLE(spi, msi001_id_table); static struct spi_driver msi001_driver = { .driver = { .name = "msi001", - .owner = THIS_MODULE, .suppress_bind_attrs = true, }, .probe = msi001_probe, diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 1e845f6d407b..03d62f7b4720 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -93,7 +93,6 @@ MODULE_DEVICE_TABLE(spi, arizona_spi_ids); static struct spi_driver arizona_spi_driver = { .driver = { .name = "arizona", - .owner = THIS_MODULE, .pm = &arizona_pm_ops, .of_match_table = of_match_ptr(arizona_of_match), }, diff --git a/drivers/mfd/cros_ec_spi.c b/drivers/mfd/cros_ec_spi.c index 30a296b4e748..6a0f6ec67c6b 100644 --- a/drivers/mfd/cros_ec_spi.c +++ b/drivers/mfd/cros_ec_spi.c @@ -717,7 +717,6 @@ static struct spi_driver cros_ec_driver_spi = { .driver = { .name = "cros-ec-spi", .of_match_table = of_match_ptr(cros_ec_spi_of_match), - .owner = THIS_MODULE, .pm = &cros_ec_spi_pm_ops, }, .probe = cros_ec_spi_probe, diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c index b5de8a6856c0..71b89dd4e8de 100644 --- a/drivers/mfd/da9052-spi.c +++ b/drivers/mfd/da9052-spi.c @@ -86,7 +86,6 @@ static struct spi_driver da9052_spi_driver = { .id_table = da9052_spi_id, .driver = { .name = "da9052", - .owner = THIS_MODULE, }, }; diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index b279205659a4..542b47c6bcd2 100644 --- a/drivers/mfd/ezx-pcap.c +++ b/drivers/mfd/ezx-pcap.c @@ -513,7 +513,6 @@ static struct spi_driver ezxpcap_driver = { .remove = ezx_pcap_remove, .driver = { .name = "ezx-pcap", - .owner = THIS_MODULE, }, }; diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index 58a170e45d88..cbc1e5ed599c 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -177,7 +177,6 @@ static struct spi_driver mc13xxx_spi_driver = { .id_table = mc13xxx_device_id, .driver = { .name = "mc13xxx", - .owner = THIS_MODULE, .of_match_table = mc13xxx_dt_ids, }, .probe = mc13xxx_spi_probe, diff --git a/drivers/mfd/stmpe-spi.c b/drivers/mfd/stmpe-spi.c index 618ba244d98a..f8b14ab8b9d7 100644 --- a/drivers/mfd/stmpe-spi.c +++ b/drivers/mfd/stmpe-spi.c @@ -135,7 +135,6 @@ static struct spi_driver stmpe_spi_driver = { .driver = { .name = "stmpe-spi", .of_match_table = of_match_ptr(stmpe_spi_of_match), - .owner = THIS_MODULE, #ifdef CONFIG_PM .pm = &stmpe_dev_pm_ops, #endif diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c index de60ad98bd9f..d59aa55b1495 100644 --- a/drivers/mfd/tps65912-spi.c +++ b/drivers/mfd/tps65912-spi.c @@ -111,7 +111,6 @@ static int tps65912_spi_remove(struct spi_device *spi) static struct spi_driver tps65912_spi_driver = { .driver = { .name = "tps65912", - .owner = THIS_MODULE, }, .probe = tps65912_spi_probe, .remove = tps65912_spi_remove, diff --git a/drivers/mfd/wm831x-spi.c b/drivers/mfd/wm831x-spi.c index b8a5e3b34ec7..80482aeb246a 100644 --- a/drivers/mfd/wm831x-spi.c +++ b/drivers/mfd/wm831x-spi.c @@ -96,7 +96,6 @@ MODULE_DEVICE_TABLE(spi, wm831x_spi_ids); static struct spi_driver wm831x_spi_driver = { .driver = { .name = "wm831x", - .owner = THIS_MODULE, .pm = &wm831x_spi_pm, }, .id_table = wm831x_spi_ids, diff --git a/drivers/misc/ad525x_dpot-spi.c b/drivers/misc/ad525x_dpot-spi.c index f4c82eafa8e5..39a7f517ee7e 100644 --- a/drivers/misc/ad525x_dpot-spi.c +++ b/drivers/misc/ad525x_dpot-spi.c @@ -132,7 +132,6 @@ MODULE_DEVICE_TABLE(spi, ad_dpot_spi_id); static struct spi_driver ad_dpot_spi_driver = { .driver = { .name = "ad_dpot", - .owner = THIS_MODULE, }, .probe = ad_dpot_spi_probe, .remove = ad_dpot_spi_remove, diff --git a/drivers/misc/bmp085-spi.c b/drivers/misc/bmp085-spi.c index 864ecac32373..17ecbf95ff15 100644 --- a/drivers/misc/bmp085-spi.c +++ b/drivers/misc/bmp085-spi.c @@ -64,7 +64,6 @@ MODULE_DEVICE_TABLE(spi, bmp085_id); static struct spi_driver bmp085_spi_driver = { .driver = { - .owner = THIS_MODULE, .name = BMP085_NAME, .of_match_table = bmp085_of_match }, diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 0a1af93ec638..f850ef556bcc 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -462,7 +462,6 @@ MODULE_DEVICE_TABLE(of, at25_of_match); static struct spi_driver at25_driver = { .driver = { .name = "at25", - .owner = THIS_MODULE, .of_match_table = at25_of_match, }, .probe = at25_probe, diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index a6bd9e3fe9d3..ff63f05edc76 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -370,7 +370,6 @@ static int eeprom_93xx46_remove(struct spi_device *spi) static struct spi_driver eeprom_93xx46_driver = { .driver = { .name = "93xx46", - .owner = THIS_MODULE, }, .probe = eeprom_93xx46_probe, .remove = eeprom_93xx46_remove, diff --git a/drivers/misc/lattice-ecp3-config.c b/drivers/misc/lattice-ecp3-config.c index c544f1f50f52..626fdcaf2510 100644 --- a/drivers/misc/lattice-ecp3-config.c +++ b/drivers/misc/lattice-ecp3-config.c @@ -235,7 +235,6 @@ MODULE_DEVICE_TABLE(spi, lattice_ecp3_id); static struct spi_driver lattice_ecp3_driver = { .driver = { .name = "lattice-ecp3", - .owner = THIS_MODULE, }, .probe = lattice_ecp3_probe, .remove = lattice_ecp3_remove, diff --git a/drivers/misc/lis3lv02d/lis3lv02d_spi.c b/drivers/misc/lis3lv02d/lis3lv02d_spi.c index b2f6e1651ac9..e575475123c8 100644 --- a/drivers/misc/lis3lv02d/lis3lv02d_spi.c +++ b/drivers/misc/lis3lv02d/lis3lv02d_spi.c @@ -138,7 +138,6 @@ static SIMPLE_DEV_PM_OPS(lis3lv02d_spi_pm, lis3lv02d_spi_suspend, static struct spi_driver lis302dl_spi_driver = { .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, .pm = &lis3lv02d_spi_pm, .of_match_table = of_match_ptr(lis302dl_spi_dt_ids), }, diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c index cb0289b44a17..f5456fb7d773 100644 --- a/drivers/misc/ti_dac7512.c +++ b/drivers/misc/ti_dac7512.c @@ -89,7 +89,6 @@ MODULE_DEVICE_TABLE(of, dac7512_of_match); static struct spi_driver dac7512_driver = { .driver = { .name = "dac7512", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(dac7512_of_match), }, .probe = dac7512_probe, diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 8ee11f4120fc..1c1b45ef3faf 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1516,7 +1516,6 @@ MODULE_DEVICE_TABLE(of, mmc_spi_of_match_table); static struct spi_driver mmc_spi_driver = { .driver = { .name = "mmc_spi", - .owner = THIS_MODULE, .of_match_table = mmc_spi_of_match_table, }, .probe = mmc_spi_probe, diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 9cd3631170ef..fcf171a1325e 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -304,7 +304,6 @@ MODULE_DEVICE_TABLE(of, m25p_of_table); static struct spi_driver m25p80_driver = { .driver = { .name = "m25p80", - .owner = THIS_MODULE, .of_match_table = m25p_of_table, }, .id_table = m25p_ids, diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index df6f61137376..70c16399e8ba 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -911,7 +911,6 @@ static int dataflash_remove(struct spi_device *spi) static struct spi_driver dataflash_driver = { .driver = { .name = "mtd_dataflash", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(dataflash_dt_ids), }, diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index c63ecbcad0b7..18febf74404d 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -417,7 +417,6 @@ static int sst25l_remove(struct spi_device *spi) static struct spi_driver sst25l_driver = { .driver = { .name = "sst25l", - .owner = THIS_MODULE, }, .probe = sst25l_probe, .remove = sst25l_remove, diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index b7e83c212023..575790e8a75a 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -1243,7 +1243,6 @@ static SIMPLE_DEV_PM_OPS(mcp251x_can_pm_ops, mcp251x_can_suspend, static struct spi_driver mcp251x_can_driver = { .driver = { .name = DEVICE_NAME, - .owner = THIS_MODULE, .of_match_table = mcp251x_of_match, .pm = &mcp251x_can_pm_ops, }, diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index 60f43ec22175..1edc973df4c4 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -1607,7 +1607,6 @@ static struct spi_driver ks8851_driver = { .driver = { .name = "ks8851", .of_match_table = ks8851_match_table, - .owner = THIS_MODULE, .pm = &ks8851_pm_ops, }, .probe = ks8851_probe, diff --git a/drivers/net/ethernet/microchip/enc28j60.c b/drivers/net/ethernet/microchip/enc28j60.c index b1b5f66b8b69..86ea17e7ba7b 100644 --- a/drivers/net/ethernet/microchip/enc28j60.c +++ b/drivers/net/ethernet/microchip/enc28j60.c @@ -1633,7 +1633,6 @@ static int enc28j60_remove(struct spi_device *spi) static struct spi_driver enc28j60_driver = { .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, }, .probe = enc28j60_probe, .remove = enc28j60_remove, diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c index 2f87909f5186..ddb2c6c6ec94 100644 --- a/drivers/net/ethernet/qualcomm/qca_spi.c +++ b/drivers/net/ethernet/qualcomm/qca_spi.c @@ -974,7 +974,6 @@ MODULE_DEVICE_TABLE(spi, qca_spi_id); static struct spi_driver qca_spi_driver = { .driver = { .name = QCASPI_DRV_NAME, - .owner = THIS_MODULE, .of_match_table = qca_spi_of_match, }, .id_table = qca_spi_id, diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index de6e4fa2d6aa..0fbbba7a0cae 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -1816,7 +1816,6 @@ static struct spi_driver at86rf230_driver = { .driver = { .of_match_table = of_match_ptr(at86rf230_of_match), .name = "at86rf230", - .owner = THIS_MODULE, }, .probe = at86rf230_probe, .remove = at86rf230_remove, diff --git a/drivers/net/ieee802154/cc2520.c b/drivers/net/ieee802154/cc2520.c index c5b54a15fc4c..e65b60591317 100644 --- a/drivers/net/ieee802154/cc2520.c +++ b/drivers/net/ieee802154/cc2520.c @@ -1152,7 +1152,6 @@ MODULE_DEVICE_TABLE(of, cc2520_of_ids); static struct spi_driver cc2520_driver = { .driver = { .name = "cc2520", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(cc2520_of_ids), }, .id_table = cc2520_ids, diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c index aca0fb3cccbf..4cdf51638972 100644 --- a/drivers/net/ieee802154/mrf24j40.c +++ b/drivers/net/ieee802154/mrf24j40.c @@ -1382,7 +1382,6 @@ static struct spi_driver mrf24j40_driver = { .driver = { .of_match_table = of_match_ptr(mrf24j40_of_match), .name = "mrf24j40", - .owner = THIS_MODULE, }, .id_table = mrf24j40_ids, .probe = mrf24j40_probe, diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index f091d691cf6f..c72c42206850 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -343,7 +343,6 @@ static int ks8995_remove(struct spi_device *spi) static struct spi_driver ks8995_driver = { .driver = { .name = "spi-ks8995", - .owner = THIS_MODULE, }, .probe = ks8995_probe, .remove = ks8995_remove, diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c index 29185aeccba8..a740083634d8 100644 --- a/drivers/net/wireless/cw1200/cw1200_spi.c +++ b/drivers/net/wireless/cw1200/cw1200_spi.c @@ -467,7 +467,6 @@ static struct spi_driver spi_driver = { .remove = cw1200_spi_disconnect, .driver = { .name = "cw1200_wlan_spi", - .owner = THIS_MODULE, #ifdef CONFIG_PM .pm = &cw1200_pm_ops, #endif diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index f11728a866ff..82c0796377aa 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -1283,7 +1283,6 @@ static struct spi_driver libertas_spi_driver = { .remove = libertas_spi_remove, .driver = { .name = "libertas_spi", - .owner = THIS_MODULE, .pm = &if_spi_pm_ops, }, }; diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c index 63de5eed25cf..7ab2f43ab425 100644 --- a/drivers/net/wireless/p54/p54spi.c +++ b/drivers/net/wireless/p54/p54spi.c @@ -705,7 +705,6 @@ static int p54spi_remove(struct spi_device *spi) static struct spi_driver p54spi_driver = { .driver = { .name = "p54spi", - .owner = THIS_MODULE, }, .probe = p54spi_probe, diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c index 735be5352143..8de9d4444a6a 100644 --- a/drivers/net/wireless/ti/wl1251/spi.c +++ b/drivers/net/wireless/ti/wl1251/spi.c @@ -354,7 +354,6 @@ static int wl1251_spi_remove(struct spi_device *spi) static struct spi_driver wl1251_spi_driver = { .driver = { .name = DRIVER_NAME, - .owner = THIS_MODULE, }, .probe = wl1251_spi_probe, diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c index f1ac2839d97c..236b41090827 100644 --- a/drivers/net/wireless/ti/wlcore/spi.c +++ b/drivers/net/wireless/ti/wlcore/spi.c @@ -408,7 +408,6 @@ static int wl1271_remove(struct spi_device *spi) static struct spi_driver wl1271_spi_driver = { .driver = { .name = "wl1271_spi", - .owner = THIS_MODULE, }, .probe = wl1271_probe, diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c index cf7ad8121e11..d6519bb9dba5 100644 --- a/drivers/nfc/st-nci/spi.c +++ b/drivers/nfc/st-nci/spi.c @@ -384,7 +384,6 @@ MODULE_DEVICE_TABLE(of, of_st_nci_spi_match); static struct spi_driver st_nci_spi_driver = { .driver = { - .owner = THIS_MODULE, .name = ST_NCI_SPI_DRIVER_NAME, .of_match_table = of_match_ptr(of_st_nci_spi_match), }, diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index 123aa981c9d8..f857feb2b573 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -2230,7 +2230,6 @@ static struct spi_driver trf7970a_spi_driver = { .driver = { .name = "trf7970a", .of_match_table = of_match_ptr(trf7970a_of_match), - .owner = THIS_MODULE, .pm = &trf7970a_pm_ops, }, }; diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index 5b494db9f95c..9d6ea3a4dccd 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -629,7 +629,6 @@ static struct spi_driver pmic_driver = { .probe = pmic_probe, .driver = { .name = "tps6524x", - .owner = THIS_MODULE, }, }; diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index baa5d047f9c8..85706a9f82c9 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -772,7 +772,6 @@ static int ds1305_remove(struct spi_device *spi) static struct spi_driver ds1305_driver = { .driver.name = "rtc-ds1305", - .driver.owner = THIS_MODULE, .probe = ds1305_probe, .remove = ds1305_remove, /* REVISIT add suspend/resume */ diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index 79a06dd3c185..07371a9e3793 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -731,7 +731,6 @@ static SIMPLE_DEV_PM_OPS(ds1343_pm, ds1343_suspend, ds1343_resume); static struct spi_driver ds1343_driver = { .driver = { .name = "ds1343", - .owner = THIS_MODULE, .pm = &ds1343_pm, }, .probe = ds1343_probe, diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c index c82b4c050326..641e8e8a0dd7 100644 --- a/drivers/rtc/rtc-ds1347.c +++ b/drivers/rtc/rtc-ds1347.c @@ -154,7 +154,6 @@ static int ds1347_probe(struct spi_device *spi) static struct spi_driver ds1347_driver = { .driver = { .name = "ds1347", - .owner = THIS_MODULE, }, .probe = ds1347_probe, }; diff --git a/drivers/rtc/rtc-ds1390.c b/drivers/rtc/rtc-ds1390.c index e67bfcb3a1aa..4c229c97ef97 100644 --- a/drivers/rtc/rtc-ds1390.c +++ b/drivers/rtc/rtc-ds1390.c @@ -156,7 +156,6 @@ static int ds1390_probe(struct spi_device *spi) static struct spi_driver ds1390_driver = { .driver = { .name = "rtc-ds1390", - .owner = THIS_MODULE, }, .probe = ds1390_probe, }; diff --git a/drivers/rtc/rtc-ds3234.c b/drivers/rtc/rtc-ds3234.c index 4c9ba5368464..570ab28fc354 100644 --- a/drivers/rtc/rtc-ds3234.c +++ b/drivers/rtc/rtc-ds3234.c @@ -159,7 +159,6 @@ static int ds3234_probe(struct spi_device *spi) static struct spi_driver ds3234_driver = { .driver = { .name = "ds3234", - .owner = THIS_MODULE, }, .probe = ds3234_probe, }; diff --git a/drivers/rtc/rtc-m41t93.c b/drivers/rtc/rtc-m41t93.c index 4698c7e344e4..5ac45fc1a787 100644 --- a/drivers/rtc/rtc-m41t93.c +++ b/drivers/rtc/rtc-m41t93.c @@ -197,7 +197,6 @@ static int m41t93_probe(struct spi_device *spi) static struct spi_driver m41t93_driver = { .driver = { .name = "rtc-m41t93", - .owner = THIS_MODULE, }, .probe = m41t93_probe, }; diff --git a/drivers/rtc/rtc-m41t94.c b/drivers/rtc/rtc-m41t94.c index 8d800b1bf87b..1f0eb79e69f9 100644 --- a/drivers/rtc/rtc-m41t94.c +++ b/drivers/rtc/rtc-m41t94.c @@ -137,7 +137,6 @@ static int m41t94_probe(struct spi_device *spi) static struct spi_driver m41t94_driver = { .driver = { .name = "rtc-m41t94", - .owner = THIS_MODULE, }, .probe = m41t94_probe, }; diff --git a/drivers/rtc/rtc-max6902.c b/drivers/rtc/rtc-max6902.c index ac3f4191864f..315d09e0f2c1 100644 --- a/drivers/rtc/rtc-max6902.c +++ b/drivers/rtc/rtc-max6902.c @@ -146,7 +146,6 @@ static int max6902_probe(struct spi_device *spi) static struct spi_driver max6902_driver = { .driver = { .name = "rtc-max6902", - .owner = THIS_MODULE, }, .probe = max6902_probe, }; diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c index 34295bf00416..1c91ce8a6d75 100644 --- a/drivers/rtc/rtc-mcp795.c +++ b/drivers/rtc/rtc-mcp795.c @@ -186,7 +186,6 @@ static int mcp795_probe(struct spi_device *spi) static struct spi_driver mcp795_driver = { .driver = { .name = "rtc-mcp795", - .owner = THIS_MODULE, }, .probe = mcp795_probe, }; diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index 1c47650fe624..ea8a31c91641 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -346,7 +346,6 @@ MODULE_DEVICE_TABLE(of, pcf2123_dt_ids); static struct spi_driver pcf2123_driver = { .driver = { .name = "rtc-pcf2123", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(pcf2123_dt_ids), }, .probe = pcf2123_probe, diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c index feeedbd82000..83d2bcca6a8f 100644 --- a/drivers/rtc/rtc-r9701.c +++ b/drivers/rtc/rtc-r9701.c @@ -172,7 +172,6 @@ static int r9701_remove(struct spi_device *spi) static struct spi_driver r9701_driver = { .driver = { .name = "rtc-r9701", - .owner = THIS_MODULE, }, .probe = r9701_probe, .remove = r9701_remove, diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c index 090a101c1c81..1162fecab8cf 100644 --- a/drivers/rtc/rtc-rs5c348.c +++ b/drivers/rtc/rtc-rs5c348.c @@ -221,7 +221,6 @@ static int rs5c348_probe(struct spi_device *spi) static struct spi_driver rs5c348_driver = { .driver = { .name = "rtc-rs5c348", - .owner = THIS_MODULE, }, .probe = rs5c348_probe, }; diff --git a/drivers/rtc/rtc-rx4581.c b/drivers/rtc/rtc-rx4581.c index 6889222f9ed6..de3fe4f8d133 100644 --- a/drivers/rtc/rtc-rx4581.c +++ b/drivers/rtc/rtc-rx4581.c @@ -291,7 +291,6 @@ MODULE_DEVICE_TABLE(spi, rx4581_id); static struct spi_driver rx4581_driver = { .driver = { .name = "rtc-rx4581", - .owner = THIS_MODULE, }, .probe = rx4581_probe, .id_table = rx4581_id, diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 4887f317ea58..8b9c2a38d1cc 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -88,6 +88,17 @@ config SPI_BCM2835 is for the regular SPI controller. Slave mode operation is not also not supported. +config SPI_BCM2835AUX + tristate "BCM2835 SPI auxiliary controller" + depends on ARCH_BCM2835 || COMPILE_TEST + depends on GPIOLIB + help + This selects a driver for the Broadcom BCM2835 SPI aux master. + + The BCM2835 contains two types of SPI master controller; the + "universal SPI master", and the regular SPI controller. + This driver is for the universal/auxiliary SPI controller. + config SPI_BFIN5XX tristate "SPI controller driver for ADI Blackfin5xx" depends on BLACKFIN && !BF60x @@ -125,7 +136,7 @@ config SPI_BCM53XX config SPI_BCM63XX tristate "Broadcom BCM63xx SPI controller" - depends on BCM63XX + depends on BCM63XX || COMPILE_TEST help Enable support for the SPI controller on the Broadcom BCM63xx SoCs. @@ -304,7 +315,7 @@ config SPI_FSL_SPI config SPI_FSL_DSPI tristate "Freescale DSPI controller" select REGMAP_MMIO - depends on SOC_VF610 || SOC_LS1021A || COMPILE_TEST + depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST help This enables support for the Freescale DSPI controller in master mode. VF610 platform uses the controller. diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 6a7f6f9d0d1c..31fb7fb2a0b6 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_SPI_ATMEL) += spi-atmel.o obj-$(CONFIG_SPI_ATH79) += spi-ath79.o obj-$(CONFIG_SPI_AU1550) += spi-au1550.o obj-$(CONFIG_SPI_BCM2835) += spi-bcm2835.o +obj-$(CONFIG_SPI_BCM2835AUX) += spi-bcm2835aux.o obj-$(CONFIG_SPI_BCM53XX) += spi-bcm53xx.o obj-$(CONFIG_SPI_BCM63XX) += spi-bcm63xx.o obj-$(CONFIG_SPI_BCM63XX_HSSPI) += spi-bcm63xx-hsspi.o diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c index bf1f9b32c597..6165bf21d427 100644 --- a/drivers/spi/spi-ath79.c +++ b/drivers/spi/spi-ath79.c @@ -240,14 +240,9 @@ static int ath79_spi_probe(struct platform_device *pdev) sp->bitbang.flags = SPI_CS_HIGH; r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (r == NULL) { - ret = -ENOENT; - goto err_put_master; - } - - sp->base = devm_ioremap(&pdev->dev, r->start, resource_size(r)); - if (!sp->base) { - ret = -ENXIO; + sp->base = devm_ioremap_resource(&pdev->dev, r); + if (IS_ERR(sp->base)) { + ret = PTR_ERR(sp->base); goto err_put_master; } diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 63318e2afba1..aebad36391c9 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -773,7 +773,8 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master, *plen = len; - if (atmel_spi_dma_slave_config(as, &slave_config, 8)) + if (atmel_spi_dma_slave_config(as, &slave_config, + xfer->bits_per_word)) goto err_exit; /* Send both scatterlists */ @@ -871,14 +872,7 @@ static int atmel_spi_set_xfer_speed(struct atmel_spi *as, * Calculate the lowest divider that satisfies the * constraint, assuming div32/fdiv/mbz == 0. */ - if (xfer->speed_hz) - scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz); - else - /* - * This can happend if max_speed is null. - * In this case, we set the lowest possible speed - */ - scbr = 0xff; + scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz); /* * If the resulting divider doesn't fit into the @@ -1300,14 +1294,12 @@ static int atmel_spi_one_transfer(struct spi_master *master, return -EINVAL; } - if (xfer->bits_per_word) { - asd = spi->controller_state; - bits = (asd->csr >> 4) & 0xf; - if (bits != xfer->bits_per_word - 8) { - dev_dbg(&spi->dev, + asd = spi->controller_state; + bits = (asd->csr >> 4) & 0xf; + if (bits != xfer->bits_per_word - 8) { + dev_dbg(&spi->dev, "you can't yet change bits_per_word in transfers\n"); - return -ENOPROTOOPT; - } + return -ENOPROTOOPT; } /* diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c index f45e085c01a6..afd239d6dec1 100644 --- a/drivers/spi/spi-au1550.c +++ b/drivers/spi/spi-au1550.c @@ -233,13 +233,12 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t) unsigned bpw, hz; u32 cfg, stat; - bpw = spi->bits_per_word; - hz = spi->max_speed_hz; if (t) { - if (t->bits_per_word) - bpw = t->bits_per_word; - if (t->speed_hz) - hz = t->speed_hz; + bpw = t->bits_per_word; + hz = t->speed_hz; + } else { + bpw = spi->bits_per_word; + hz = spi->max_speed_hz; } if (!hz) diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 3e8eeb23d4e9..cf04960cc3e6 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -777,7 +777,7 @@ static int bcm2835_spi_probe(struct platform_device *pdev) goto out_master_put; } - bs->irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + bs->irq = platform_get_irq(pdev, 0); if (bs->irq <= 0) { dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq); err = bs->irq ? bs->irq : -ENODEV; @@ -786,6 +786,12 @@ static int bcm2835_spi_probe(struct platform_device *pdev) clk_prepare_enable(bs->clk); + bcm2835_dma_init(master, &pdev->dev); + + /* initialise the hardware with the default polarities */ + bcm2835_wr(bs, BCM2835_SPI_CS, + BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX); + err = devm_request_irq(&pdev->dev, bs->irq, bcm2835_spi_interrupt, 0, dev_name(&pdev->dev), master); if (err) { @@ -793,12 +799,6 @@ static int bcm2835_spi_probe(struct platform_device *pdev) goto out_clk_disable; } - bcm2835_dma_init(master, &pdev->dev); - - /* initialise the hardware with the default polarities */ - bcm2835_wr(bs, BCM2835_SPI_CS, - BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX); - err = devm_spi_register_master(&pdev->dev, master); if (err) { dev_err(&pdev->dev, "could not register SPI master: %d\n", err); diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c new file mode 100644 index 000000000000..7de6f8472a81 --- /dev/null +++ b/drivers/spi/spi-bcm2835aux.c @@ -0,0 +1,512 @@ +/* + * Driver for Broadcom BCM2835 auxiliary SPI Controllers + * + * the driver does not rely on the native chipselects at all + * but only uses the gpio type chipselects + * + * Based on: spi-bcm2835.c + * + * Copyright (C) 2015 Martin Sperl + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk.h> +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/of_irq.h> +#include <linux/regmap.h> +#include <linux/spi/spi.h> +#include <linux/spinlock.h> + +/* + * spi register defines + * + * note there is garbage in the "official" documentation, + * so some data is taken from the file: + * brcm_usrlib/dag/vmcsx/vcinclude/bcm2708_chip/aux_io.h + * inside of: + * http://www.broadcom.com/docs/support/videocore/Brcm_Android_ICS_Graphics_Stack.tar.gz + */ + +/* SPI register offsets */ +#define BCM2835_AUX_SPI_CNTL0 0x00 +#define BCM2835_AUX_SPI_CNTL1 0x04 +#define BCM2835_AUX_SPI_STAT 0x08 +#define BCM2835_AUX_SPI_PEEK 0x0C +#define BCM2835_AUX_SPI_IO 0x20 +#define BCM2835_AUX_SPI_TXHOLD 0x30 + +/* Bitfields in CNTL0 */ +#define BCM2835_AUX_SPI_CNTL0_SPEED 0xFFF00000 +#define BCM2835_AUX_SPI_CNTL0_SPEED_MAX 0xFFF +#define BCM2835_AUX_SPI_CNTL0_SPEED_SHIFT 20 +#define BCM2835_AUX_SPI_CNTL0_CS 0x000E0000 +#define BCM2835_AUX_SPI_CNTL0_POSTINPUT 0x00010000 +#define BCM2835_AUX_SPI_CNTL0_VAR_CS 0x00008000 +#define BCM2835_AUX_SPI_CNTL0_VAR_WIDTH 0x00004000 +#define BCM2835_AUX_SPI_CNTL0_DOUTHOLD 0x00003000 +#define BCM2835_AUX_SPI_CNTL0_ENABLE 0x00000800 +#define BCM2835_AUX_SPI_CNTL0_CPHA_IN 0x00000400 +#define BCM2835_AUX_SPI_CNTL0_CLEARFIFO 0x00000200 +#define BCM2835_AUX_SPI_CNTL0_CPHA_OUT 0x00000100 +#define BCM2835_AUX_SPI_CNTL0_CPOL 0x00000080 +#define BCM2835_AUX_SPI_CNTL0_MSBF_OUT 0x00000040 +#define BCM2835_AUX_SPI_CNTL0_SHIFTLEN 0x0000003F + +/* Bitfields in CNTL1 */ +#define BCM2835_AUX_SPI_CNTL1_CSHIGH 0x00000700 +#define BCM2835_AUX_SPI_CNTL1_IDLE 0x00000080 +#define BCM2835_AUX_SPI_CNTL1_TXEMPTY 0x00000040 +#define BCM2835_AUX_SPI_CNTL1_MSBF_IN 0x00000002 +#define BCM2835_AUX_SPI_CNTL1_KEEP_IN 0x00000001 + +/* Bitfields in STAT */ +#define BCM2835_AUX_SPI_STAT_TX_LVL 0xFF000000 +#define BCM2835_AUX_SPI_STAT_RX_LVL 0x00FF0000 +#define BCM2835_AUX_SPI_STAT_TX_FULL 0x00000400 +#define BCM2835_AUX_SPI_STAT_TX_EMPTY 0x00000200 +#define BCM2835_AUX_SPI_STAT_RX_FULL 0x00000100 +#define BCM2835_AUX_SPI_STAT_RX_EMPTY 0x00000080 +#define BCM2835_AUX_SPI_STAT_BUSY 0x00000040 +#define BCM2835_AUX_SPI_STAT_BITCOUNT 0x0000003F + +/* timeout values */ +#define BCM2835_AUX_SPI_POLLING_LIMIT_US 30 +#define BCM2835_AUX_SPI_POLLING_JIFFIES 2 + +#define BCM2835_AUX_SPI_MODE_BITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \ + | SPI_NO_CS) + +struct bcm2835aux_spi { + void __iomem *regs; + struct clk *clk; + int irq; + u32 cntl[2]; + const u8 *tx_buf; + u8 *rx_buf; + int tx_len; + int rx_len; + int pending; +}; + +static inline u32 bcm2835aux_rd(struct bcm2835aux_spi *bs, unsigned reg) +{ + return readl(bs->regs + reg); +} + +static inline void bcm2835aux_wr(struct bcm2835aux_spi *bs, unsigned reg, + u32 val) +{ + writel(val, bs->regs + reg); +} + +static inline void bcm2835aux_rd_fifo(struct bcm2835aux_spi *bs) +{ + u32 data; + int count = min(bs->rx_len, 3); + + data = bcm2835aux_rd(bs, BCM2835_AUX_SPI_IO); + if (bs->rx_buf) { + switch (count) { + case 4: + *bs->rx_buf++ = (data >> 24) & 0xff; + /* fallthrough */ + case 3: + *bs->rx_buf++ = (data >> 16) & 0xff; + /* fallthrough */ + case 2: + *bs->rx_buf++ = (data >> 8) & 0xff; + /* fallthrough */ + case 1: + *bs->rx_buf++ = (data >> 0) & 0xff; + /* fallthrough - no default */ + } + } + bs->rx_len -= count; + bs->pending -= count; +} + +static inline void bcm2835aux_wr_fifo(struct bcm2835aux_spi *bs) +{ + u32 data; + u8 byte; + int count; + int i; + + /* gather up to 3 bytes to write to the FIFO */ + count = min(bs->tx_len, 3); + data = 0; + for (i = 0; i < count; i++) { + byte = bs->tx_buf ? *bs->tx_buf++ : 0; + data |= byte << (8 * (2 - i)); + } + + /* and set the variable bit-length */ + data |= (count * 8) << 24; + + /* and decrement length */ + bs->tx_len -= count; + bs->pending += count; + + /* write to the correct TX-register */ + if (bs->tx_len) + bcm2835aux_wr(bs, BCM2835_AUX_SPI_TXHOLD, data); + else + bcm2835aux_wr(bs, BCM2835_AUX_SPI_IO, data); +} + +static void bcm2835aux_spi_reset_hw(struct bcm2835aux_spi *bs) +{ + /* disable spi clearing fifo and interrupts */ + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, 0); + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0, + BCM2835_AUX_SPI_CNTL0_CLEARFIFO); +} + +static irqreturn_t bcm2835aux_spi_interrupt(int irq, void *dev_id) +{ + struct spi_master *master = dev_id; + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + irqreturn_t ret = IRQ_NONE; + + /* check if we have data to read */ + while (bs->rx_len && + (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) & + BCM2835_AUX_SPI_STAT_RX_EMPTY))) { + bcm2835aux_rd_fifo(bs); + ret = IRQ_HANDLED; + } + + /* check if we have data to write */ + while (bs->tx_len && + (bs->pending < 12) && + (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) & + BCM2835_AUX_SPI_STAT_TX_FULL))) { + bcm2835aux_wr_fifo(bs); + ret = IRQ_HANDLED; + } + + /* and check if we have reached "done" */ + while (bs->rx_len && + (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) & + BCM2835_AUX_SPI_STAT_BUSY))) { + bcm2835aux_rd_fifo(bs); + ret = IRQ_HANDLED; + } + + /* and if rx_len is 0 then wake up completion and disable spi */ + if (!bs->rx_len) { + bcm2835aux_spi_reset_hw(bs); + complete(&master->xfer_completion); + } + + /* and return */ + return ret; +} + +static int __bcm2835aux_spi_transfer_one_irq(struct spi_master *master, + struct spi_device *spi, + struct spi_transfer *tfr) +{ + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + + /* enable interrupts */ + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1] | + BCM2835_AUX_SPI_CNTL1_TXEMPTY | + BCM2835_AUX_SPI_CNTL1_IDLE); + + /* and wait for finish... */ + return 1; +} + +static int bcm2835aux_spi_transfer_one_irq(struct spi_master *master, + struct spi_device *spi, + struct spi_transfer *tfr) +{ + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + + /* fill in registers and fifos before enabling interrupts */ + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1]); + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0, bs->cntl[0]); + + /* fill in tx fifo with data before enabling interrupts */ + while ((bs->tx_len) && + (bs->pending < 12) && + (!(bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT) & + BCM2835_AUX_SPI_STAT_TX_FULL))) { + bcm2835aux_wr_fifo(bs); + } + + /* now run the interrupt mode */ + return __bcm2835aux_spi_transfer_one_irq(master, spi, tfr); +} + +static int bcm2835aux_spi_transfer_one_poll(struct spi_master *master, + struct spi_device *spi, + struct spi_transfer *tfr) +{ + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + unsigned long timeout; + u32 stat; + + /* configure spi */ + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL1, bs->cntl[1]); + bcm2835aux_wr(bs, BCM2835_AUX_SPI_CNTL0, bs->cntl[0]); + + /* set the timeout */ + timeout = jiffies + BCM2835_AUX_SPI_POLLING_JIFFIES; + + /* loop until finished the transfer */ + while (bs->rx_len) { + /* read status */ + stat = bcm2835aux_rd(bs, BCM2835_AUX_SPI_STAT); + + /* fill in tx fifo with remaining data */ + if ((bs->tx_len) && (!(stat & BCM2835_AUX_SPI_STAT_TX_FULL))) { + bcm2835aux_wr_fifo(bs); + continue; + } + + /* read data from fifo for both cases */ + if (!(stat & BCM2835_AUX_SPI_STAT_RX_EMPTY)) { + bcm2835aux_rd_fifo(bs); + continue; + } + if (!(stat & BCM2835_AUX_SPI_STAT_BUSY)) { + bcm2835aux_rd_fifo(bs); + continue; + } + + /* there is still data pending to read check the timeout */ + if (bs->rx_len && time_after(jiffies, timeout)) { + dev_dbg_ratelimited(&spi->dev, + "timeout period reached: jiffies: %lu remaining tx/rx: %d/%d - falling back to interrupt mode\n", + jiffies - timeout, + bs->tx_len, bs->rx_len); + /* forward to interrupt handler */ + return __bcm2835aux_spi_transfer_one_irq(master, + spi, tfr); + } + } + + /* Transfer complete - reset SPI HW */ + bcm2835aux_spi_reset_hw(bs); + + /* and return without waiting for completion */ + return 0; +} + +static int bcm2835aux_spi_transfer_one(struct spi_master *master, + struct spi_device *spi, + struct spi_transfer *tfr) +{ + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + unsigned long spi_hz, clk_hz, speed; + unsigned long spi_used_hz; + unsigned long long xfer_time_us; + + /* calculate the registers to handle + * + * note that we use the variable data mode, which + * is not optimal for longer transfers as we waste registers + * resulting (potentially) in more interrupts when transferring + * more than 12 bytes + */ + bs->cntl[0] = BCM2835_AUX_SPI_CNTL0_ENABLE | + BCM2835_AUX_SPI_CNTL0_VAR_WIDTH | + BCM2835_AUX_SPI_CNTL0_MSBF_OUT; + bs->cntl[1] = BCM2835_AUX_SPI_CNTL1_MSBF_IN; + + /* set clock */ + spi_hz = tfr->speed_hz; + clk_hz = clk_get_rate(bs->clk); + + if (spi_hz >= clk_hz / 2) { + speed = 0; + } else if (spi_hz) { + speed = DIV_ROUND_UP(clk_hz, 2 * spi_hz) - 1; + if (speed > BCM2835_AUX_SPI_CNTL0_SPEED_MAX) + speed = BCM2835_AUX_SPI_CNTL0_SPEED_MAX; + } else { /* the slowest we can go */ + speed = BCM2835_AUX_SPI_CNTL0_SPEED_MAX; + } + bs->cntl[0] |= speed << BCM2835_AUX_SPI_CNTL0_SPEED_SHIFT; + + spi_used_hz = clk_hz / (2 * (speed + 1)); + + /* handle all the modes */ + if (spi->mode & SPI_CPOL) + bs->cntl[0] |= BCM2835_AUX_SPI_CNTL0_CPOL; + if (spi->mode & SPI_CPHA) + bs->cntl[0] |= BCM2835_AUX_SPI_CNTL0_CPHA_OUT | + BCM2835_AUX_SPI_CNTL0_CPHA_IN; + + /* set transmit buffers and length */ + bs->tx_buf = tfr->tx_buf; + bs->rx_buf = tfr->rx_buf; + bs->tx_len = tfr->len; + bs->rx_len = tfr->len; + bs->pending = 0; + + /* calculate the estimated time in us the transfer runs + * note that there are are 2 idle clocks after each + * chunk getting transferred - in our case the chunk size + * is 3 bytes, so we approximate this by 9 bits/byte + */ + xfer_time_us = tfr->len * 9 * 1000000; + do_div(xfer_time_us, spi_used_hz); + + /* run in polling mode for short transfers */ + if (xfer_time_us < BCM2835_AUX_SPI_POLLING_LIMIT_US) + return bcm2835aux_spi_transfer_one_poll(master, spi, tfr); + + /* run in interrupt mode for all others */ + return bcm2835aux_spi_transfer_one_irq(master, spi, tfr); +} + +static void bcm2835aux_spi_handle_err(struct spi_master *master, + struct spi_message *msg) +{ + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + + bcm2835aux_spi_reset_hw(bs); +} + +static int bcm2835aux_spi_probe(struct platform_device *pdev) +{ + struct spi_master *master; + struct bcm2835aux_spi *bs; + struct resource *res; + unsigned long clk_hz; + int err; + + master = spi_alloc_master(&pdev->dev, sizeof(*bs)); + if (!master) { + dev_err(&pdev->dev, "spi_alloc_master() failed\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, master); + master->mode_bits = BCM2835_AUX_SPI_MODE_BITS; + master->bits_per_word_mask = SPI_BPW_MASK(8); + master->num_chipselect = -1; + master->transfer_one = bcm2835aux_spi_transfer_one; + master->handle_err = bcm2835aux_spi_handle_err; + master->dev.of_node = pdev->dev.of_node; + + bs = spi_master_get_devdata(master); + + /* the main area */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + bs->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(bs->regs)) { + err = PTR_ERR(bs->regs); + goto out_master_put; + } + + bs->clk = devm_clk_get(&pdev->dev, NULL); + if ((!bs->clk) || (IS_ERR(bs->clk))) { + err = PTR_ERR(bs->clk); + dev_err(&pdev->dev, "could not get clk: %d\n", err); + goto out_master_put; + } + + bs->irq = platform_get_irq(pdev, 0); + if (bs->irq <= 0) { + dev_err(&pdev->dev, "could not get IRQ: %d\n", bs->irq); + err = bs->irq ? bs->irq : -ENODEV; + goto out_master_put; + } + + /* this also enables the HW block */ + err = clk_prepare_enable(bs->clk); + if (err) { + dev_err(&pdev->dev, "could not prepare clock: %d\n", err); + goto out_master_put; + } + + /* just checking if the clock returns a sane value */ + clk_hz = clk_get_rate(bs->clk); + if (!clk_hz) { + dev_err(&pdev->dev, "clock returns 0 Hz\n"); + err = -ENODEV; + goto out_clk_disable; + } + + /* reset SPI-HW block */ + bcm2835aux_spi_reset_hw(bs); + + err = devm_request_irq(&pdev->dev, bs->irq, + bcm2835aux_spi_interrupt, + IRQF_SHARED, + dev_name(&pdev->dev), master); + if (err) { + dev_err(&pdev->dev, "could not request IRQ: %d\n", err); + goto out_clk_disable; + } + + err = devm_spi_register_master(&pdev->dev, master); + if (err) { + dev_err(&pdev->dev, "could not register SPI master: %d\n", err); + goto out_clk_disable; + } + + return 0; + +out_clk_disable: + clk_disable_unprepare(bs->clk); +out_master_put: + spi_master_put(master); + return err; +} + +static int bcm2835aux_spi_remove(struct platform_device *pdev) +{ + struct spi_master *master = platform_get_drvdata(pdev); + struct bcm2835aux_spi *bs = spi_master_get_devdata(master); + + bcm2835aux_spi_reset_hw(bs); + + /* disable the HW block by releasing the clock */ + clk_disable_unprepare(bs->clk); + + return 0; +} + +static const struct of_device_id bcm2835aux_spi_match[] = { + { .compatible = "brcm,bcm2835-aux-spi", }, + {} +}; +MODULE_DEVICE_TABLE(of, bcm2835aux_spi_match); + +static struct platform_driver bcm2835aux_spi_driver = { + .driver = { + .name = "spi-bcm2835aux", + .of_match_table = bcm2835aux_spi_match, + }, + .probe = bcm2835aux_spi_probe, + .remove = bcm2835aux_spi_remove, +}; +module_platform_driver(bcm2835aux_spi_driver); + +MODULE_DESCRIPTION("SPI controller driver for Broadcom BCM2835 aux"); +MODULE_AUTHOR("Martin Sperl <kernel@martin.sperl.org>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/spi/spi-bcm53xx.c b/drivers/spi/spi-bcm53xx.c index 1520554978a3..cc3f938f0a6b 100644 --- a/drivers/spi/spi-bcm53xx.c +++ b/drivers/spi/spi-bcm53xx.c @@ -247,28 +247,19 @@ static int bcm53xxspi_bcma_probe(struct bcma_device *core) if (err) { spi_master_put(master); bcma_set_drvdata(core, NULL); - goto out; + return err; } /* Broadcom SoCs (at least with the CC rev 42) use SPI for flash only */ spi_new_device(master, &bcm53xx_info); -out: - return err; -} - -static void bcm53xxspi_bcma_remove(struct bcma_device *core) -{ - struct bcm53xxspi *b53spi = bcma_get_drvdata(core); - - spi_unregister_master(b53spi->master); + return 0; } static struct bcma_driver bcm53xxspi_bcma_driver = { .name = KBUILD_MODNAME, .id_table = bcm53xxspi_bcma_tbl, .probe = bcm53xxspi_bcma_probe, - .remove = bcm53xxspi_bcma_remove, }; /************************************************** diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index e73e2b052c9c..06858e04ec59 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -27,10 +27,117 @@ #include <linux/err.h> #include <linux/pm_runtime.h> -#include <bcm63xx_dev_spi.h> +/* BCM 6338/6348 SPI core */ +#define SPI_6348_RSET_SIZE 64 +#define SPI_6348_CMD 0x00 /* 16-bits register */ +#define SPI_6348_INT_STATUS 0x02 +#define SPI_6348_INT_MASK_ST 0x03 +#define SPI_6348_INT_MASK 0x04 +#define SPI_6348_ST 0x05 +#define SPI_6348_CLK_CFG 0x06 +#define SPI_6348_FILL_BYTE 0x07 +#define SPI_6348_MSG_TAIL 0x09 +#define SPI_6348_RX_TAIL 0x0b +#define SPI_6348_MSG_CTL 0x40 /* 8-bits register */ +#define SPI_6348_MSG_CTL_WIDTH 8 +#define SPI_6348_MSG_DATA 0x41 +#define SPI_6348_MSG_DATA_SIZE 0x3f +#define SPI_6348_RX_DATA 0x80 +#define SPI_6348_RX_DATA_SIZE 0x3f + +/* BCM 3368/6358/6262/6368 SPI core */ +#define SPI_6358_RSET_SIZE 1804 +#define SPI_6358_MSG_CTL 0x00 /* 16-bits register */ +#define SPI_6358_MSG_CTL_WIDTH 16 +#define SPI_6358_MSG_DATA 0x02 +#define SPI_6358_MSG_DATA_SIZE 0x21e +#define SPI_6358_RX_DATA 0x400 +#define SPI_6358_RX_DATA_SIZE 0x220 +#define SPI_6358_CMD 0x700 /* 16-bits register */ +#define SPI_6358_INT_STATUS 0x702 +#define SPI_6358_INT_MASK_ST 0x703 +#define SPI_6358_INT_MASK 0x704 +#define SPI_6358_ST 0x705 +#define SPI_6358_CLK_CFG 0x706 +#define SPI_6358_FILL_BYTE 0x707 +#define SPI_6358_MSG_TAIL 0x709 +#define SPI_6358_RX_TAIL 0x70B + +/* Shared SPI definitions */ + +/* Message configuration */ +#define SPI_FD_RW 0x00 +#define SPI_HD_W 0x01 +#define SPI_HD_R 0x02 +#define SPI_BYTE_CNT_SHIFT 0 +#define SPI_6348_MSG_TYPE_SHIFT 6 +#define SPI_6358_MSG_TYPE_SHIFT 14 + +/* Command */ +#define SPI_CMD_NOOP 0x00 +#define SPI_CMD_SOFT_RESET 0x01 +#define SPI_CMD_HARD_RESET 0x02 +#define SPI_CMD_START_IMMEDIATE 0x03 +#define SPI_CMD_COMMAND_SHIFT 0 +#define SPI_CMD_COMMAND_MASK 0x000f +#define SPI_CMD_DEVICE_ID_SHIFT 4 +#define SPI_CMD_PREPEND_BYTE_CNT_SHIFT 8 +#define SPI_CMD_ONE_BYTE_SHIFT 11 +#define SPI_CMD_ONE_WIRE_SHIFT 12 +#define SPI_DEV_ID_0 0 +#define SPI_DEV_ID_1 1 +#define SPI_DEV_ID_2 2 +#define SPI_DEV_ID_3 3 + +/* Interrupt mask */ +#define SPI_INTR_CMD_DONE 0x01 +#define SPI_INTR_RX_OVERFLOW 0x02 +#define SPI_INTR_TX_UNDERFLOW 0x04 +#define SPI_INTR_TX_OVERFLOW 0x08 +#define SPI_INTR_RX_UNDERFLOW 0x10 +#define SPI_INTR_CLEAR_ALL 0x1f + +/* Status */ +#define SPI_RX_EMPTY 0x02 +#define SPI_CMD_BUSY 0x04 +#define SPI_SERIAL_BUSY 0x08 + +/* Clock configuration */ +#define SPI_CLK_20MHZ 0x00 +#define SPI_CLK_0_391MHZ 0x01 +#define SPI_CLK_0_781MHZ 0x02 /* default */ +#define SPI_CLK_1_563MHZ 0x03 +#define SPI_CLK_3_125MHZ 0x04 +#define SPI_CLK_6_250MHZ 0x05 +#define SPI_CLK_12_50MHZ 0x06 +#define SPI_CLK_MASK 0x07 +#define SPI_SSOFFTIME_MASK 0x38 +#define SPI_SSOFFTIME_SHIFT 3 +#define SPI_BYTE_SWAP 0x80 + +enum bcm63xx_regs_spi { + SPI_CMD, + SPI_INT_STATUS, + SPI_INT_MASK_ST, + SPI_INT_MASK, + SPI_ST, + SPI_CLK_CFG, + SPI_FILL_BYTE, + SPI_MSG_TAIL, + SPI_RX_TAIL, + SPI_MSG_CTL, + SPI_MSG_DATA, + SPI_RX_DATA, + SPI_MSG_TYPE_SHIFT, + SPI_MSG_CTL_WIDTH, + SPI_MSG_DATA_SIZE, +}; #define BCM63XX_SPI_MAX_PREPEND 15 +#define BCM63XX_SPI_MAX_CS 8 +#define BCM63XX_SPI_BUS_NUM 0 + struct bcm63xx_spi { struct completion done; @@ -38,6 +145,7 @@ struct bcm63xx_spi { int irq; /* Platform data */ + const unsigned long *reg_offsets; unsigned fifo_size; unsigned int msg_type_shift; unsigned int msg_ctl_width; @@ -51,27 +159,35 @@ struct bcm63xx_spi { }; static inline u8 bcm_spi_readb(struct bcm63xx_spi *bs, - unsigned int offset) + unsigned int offset) { - return bcm_readb(bs->regs + bcm63xx_spireg(offset)); + return readb(bs->regs + bs->reg_offsets[offset]); } static inline u16 bcm_spi_readw(struct bcm63xx_spi *bs, unsigned int offset) { - return bcm_readw(bs->regs + bcm63xx_spireg(offset)); +#ifdef CONFIG_CPU_BIG_ENDIAN + return ioread16be(bs->regs + bs->reg_offsets[offset]); +#else + return readw(bs->regs + bs->reg_offsets[offset]); +#endif } static inline void bcm_spi_writeb(struct bcm63xx_spi *bs, u8 value, unsigned int offset) { - bcm_writeb(value, bs->regs + bcm63xx_spireg(offset)); + writeb(value, bs->regs + bs->reg_offsets[offset]); } static inline void bcm_spi_writew(struct bcm63xx_spi *bs, u16 value, unsigned int offset) { - bcm_writew(value, bs->regs + bcm63xx_spireg(offset)); +#ifdef CONFIG_CPU_BIG_ENDIAN + iowrite16be(value, bs->regs + bs->reg_offsets[offset]); +#else + writew(value, bs->regs + bs->reg_offsets[offset]); +#endif } static const unsigned bcm63xx_spi_freq_table[SPI_CLK_MASK][2] = { @@ -122,7 +238,6 @@ static int bcm63xx_txrx_bufs(struct spi_device *spi, struct spi_transfer *first, struct bcm63xx_spi *bs = spi_master_get_devdata(spi->master); u16 msg_ctl; u16 cmd; - u8 rx_tail; unsigned int i, timeout = 0, prepend_len = 0, len = 0; struct spi_transfer *t = first; bool do_rx = false; @@ -314,18 +429,71 @@ static irqreturn_t bcm63xx_spi_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +static const unsigned long bcm6348_spi_reg_offsets[] = { + [SPI_CMD] = SPI_6348_CMD, + [SPI_INT_STATUS] = SPI_6348_INT_STATUS, + [SPI_INT_MASK_ST] = SPI_6348_INT_MASK_ST, + [SPI_INT_MASK] = SPI_6348_INT_MASK, + [SPI_ST] = SPI_6348_ST, + [SPI_CLK_CFG] = SPI_6348_CLK_CFG, + [SPI_FILL_BYTE] = SPI_6348_FILL_BYTE, + [SPI_MSG_TAIL] = SPI_6348_MSG_TAIL, + [SPI_RX_TAIL] = SPI_6348_RX_TAIL, + [SPI_MSG_CTL] = SPI_6348_MSG_CTL, + [SPI_MSG_DATA] = SPI_6348_MSG_DATA, + [SPI_RX_DATA] = SPI_6348_RX_DATA, + [SPI_MSG_TYPE_SHIFT] = SPI_6348_MSG_TYPE_SHIFT, + [SPI_MSG_CTL_WIDTH] = SPI_6348_MSG_CTL_WIDTH, + [SPI_MSG_DATA_SIZE] = SPI_6348_MSG_DATA_SIZE, +}; + +static const unsigned long bcm6358_spi_reg_offsets[] = { + [SPI_CMD] = SPI_6358_CMD, + [SPI_INT_STATUS] = SPI_6358_INT_STATUS, + [SPI_INT_MASK_ST] = SPI_6358_INT_MASK_ST, + [SPI_INT_MASK] = SPI_6358_INT_MASK, + [SPI_ST] = SPI_6358_ST, + [SPI_CLK_CFG] = SPI_6358_CLK_CFG, + [SPI_FILL_BYTE] = SPI_6358_FILL_BYTE, + [SPI_MSG_TAIL] = SPI_6358_MSG_TAIL, + [SPI_RX_TAIL] = SPI_6358_RX_TAIL, + [SPI_MSG_CTL] = SPI_6358_MSG_CTL, + [SPI_MSG_DATA] = SPI_6358_MSG_DATA, + [SPI_RX_DATA] = SPI_6358_RX_DATA, + [SPI_MSG_TYPE_SHIFT] = SPI_6358_MSG_TYPE_SHIFT, + [SPI_MSG_CTL_WIDTH] = SPI_6358_MSG_CTL_WIDTH, + [SPI_MSG_DATA_SIZE] = SPI_6358_MSG_DATA_SIZE, +}; + +static const struct platform_device_id bcm63xx_spi_dev_match[] = { + { + .name = "bcm6348-spi", + .driver_data = (unsigned long)bcm6348_spi_reg_offsets, + }, + { + .name = "bcm6358-spi", + .driver_data = (unsigned long)bcm6358_spi_reg_offsets, + }, + { + }, +}; static int bcm63xx_spi_probe(struct platform_device *pdev) { struct resource *r; + const unsigned long *bcm63xx_spireg; struct device *dev = &pdev->dev; - struct bcm63xx_spi_pdata *pdata = dev_get_platdata(&pdev->dev); int irq; struct spi_master *master; struct clk *clk; struct bcm63xx_spi *bs; int ret; + if (!pdev->id_entry->driver_data) + return -EINVAL; + + bcm63xx_spireg = (const unsigned long *)pdev->id_entry->driver_data; + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(dev, "no irq\n"); @@ -359,7 +527,8 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) bs->irq = irq; bs->clk = clk; - bs->fifo_size = pdata->fifo_size; + bs->reg_offsets = bcm63xx_spireg; + bs->fifo_size = bs->reg_offsets[SPI_MSG_DATA_SIZE]; ret = devm_request_irq(&pdev->dev, irq, bcm63xx_spi_interrupt, 0, pdev->name, master); @@ -368,26 +537,16 @@ static int bcm63xx_spi_probe(struct platform_device *pdev) goto out_err; } - master->bus_num = pdata->bus_num; - master->num_chipselect = pdata->num_chipselect; + master->bus_num = BCM63XX_SPI_BUS_NUM; + master->num_chipselect = BCM63XX_SPI_MAX_CS; master->transfer_one_message = bcm63xx_spi_transfer_one; master->mode_bits = MODEBITS; master->bits_per_word_mask = SPI_BPW_MASK(8); master->auto_runtime_pm = true; - bs->msg_type_shift = pdata->msg_type_shift; - bs->msg_ctl_width = pdata->msg_ctl_width; - bs->tx_io = (u8 *)(bs->regs + bcm63xx_spireg(SPI_MSG_DATA)); - bs->rx_io = (const u8 *)(bs->regs + bcm63xx_spireg(SPI_RX_DATA)); - - switch (bs->msg_ctl_width) { - case 8: - case 16: - break; - default: - dev_err(dev, "unsupported MSG_CTL width: %d\n", - bs->msg_ctl_width); - goto out_err; - } + bs->msg_type_shift = bs->reg_offsets[SPI_MSG_TYPE_SHIFT]; + bs->msg_ctl_width = bs->reg_offsets[SPI_MSG_CTL_WIDTH]; + bs->tx_io = (u8 *)(bs->regs + bs->reg_offsets[SPI_MSG_DATA]); + bs->rx_io = (const u8 *)(bs->regs + bs->reg_offsets[SPI_RX_DATA]); /* Initialize hardware */ ret = clk_prepare_enable(bs->clk); @@ -467,6 +626,7 @@ static struct platform_driver bcm63xx_spi_driver = { .name = "bcm63xx-spi", .pm = &bcm63xx_spi_pm_ops, }, + .id_table = bcm63xx_spi_dev_match, .probe = bcm63xx_spi_probe, .remove = bcm63xx_spi_remove, }; diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c index a78693189f45..6c967555a56a 100644 --- a/drivers/spi/spi-bfin-sport.c +++ b/drivers/spi/spi-bfin-sport.c @@ -352,10 +352,7 @@ bfin_sport_spi_pump_transfers(unsigned long data) transfer = drv_data->cur_transfer; chip = drv_data->cur_chip; - if (transfer->speed_hz) - transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz); - else - transfer_speed = chip->baud; + transfer_speed = bfin_sport_hz_to_spi_baud(transfer->speed_hz); bfin_write(&drv_data->regs->tclkdiv, transfer_speed); SSYNC(); diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c index a3d65b4f4944..1e91325bf39c 100644 --- a/drivers/spi/spi-bfin5xx.c +++ b/drivers/spi/spi-bfin5xx.c @@ -661,11 +661,7 @@ static void bfin_spi_pump_transfers(unsigned long data) message->state = RUNNING_STATE; dma_config = 0; - /* Speed setup (surely valid because already checked) */ - if (transfer->speed_hz) - bfin_write(&drv_data->regs->baud, hz_to_spi_baud(transfer->speed_hz)); - else - bfin_write(&drv_data->regs->baud, chip->baud); + bfin_write(&drv_data->regs->baud, hz_to_spi_baud(transfer->speed_hz)); bfin_write(&drv_data->regs->stat, BIT_STAT_CLR); bfin_spi_cs_active(drv_data, chip); diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c index 840a4984d365..3aa9e6e3dac8 100644 --- a/drivers/spi/spi-bitbang.c +++ b/drivers/spi/spi-bitbang.c @@ -24,6 +24,8 @@ #include <linux/spi/spi.h> #include <linux/spi/spi_bitbang.h> +#define SPI_BITBANG_CS_DELAY 100 + /*----------------------------------------------------------------------*/ @@ -180,7 +182,6 @@ int spi_bitbang_setup(struct spi_device *spi) { struct spi_bitbang_cs *cs = spi->controller_state; struct spi_bitbang *bitbang; - unsigned long flags; bitbang = spi_master_get_devdata(spi->master); @@ -210,12 +211,12 @@ int spi_bitbang_setup(struct spi_device *spi) */ /* deselect chip (low or high) */ - spin_lock_irqsave(&bitbang->lock, flags); + mutex_lock(&bitbang->lock); if (!bitbang->busy) { bitbang->chipselect(spi, BITBANG_CS_INACTIVE); ndelay(cs->nsecs); } - spin_unlock_irqrestore(&bitbang->lock, flags); + mutex_unlock(&bitbang->lock); return 0; } @@ -255,122 +256,39 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t) static int spi_bitbang_prepare_hardware(struct spi_master *spi) { struct spi_bitbang *bitbang; - unsigned long flags; bitbang = spi_master_get_devdata(spi); - spin_lock_irqsave(&bitbang->lock, flags); + mutex_lock(&bitbang->lock); bitbang->busy = 1; - spin_unlock_irqrestore(&bitbang->lock, flags); + mutex_unlock(&bitbang->lock); return 0; } static int spi_bitbang_transfer_one(struct spi_master *master, - struct spi_message *m) + struct spi_device *spi, + struct spi_transfer *transfer) { - struct spi_bitbang *bitbang; - unsigned nsecs; - struct spi_transfer *t = NULL; - unsigned cs_change; - int status; - int do_setup = -1; - struct spi_device *spi = m->spi; - - bitbang = spi_master_get_devdata(master); - - /* FIXME this is made-up ... the correct value is known to - * word-at-a-time bitbang code, and presumably chipselect() - * should enforce these requirements too? - */ - nsecs = 100; - - cs_change = 1; - status = 0; - - list_for_each_entry(t, &m->transfers, transfer_list) { - - /* override speed or wordsize? */ - if (t->speed_hz || t->bits_per_word) - do_setup = 1; - - /* init (-1) or override (1) transfer params */ - if (do_setup != 0) { - if (bitbang->setup_transfer) { - status = bitbang->setup_transfer(spi, t); - if (status < 0) - break; - } - if (do_setup == -1) - do_setup = 0; - } - - /* set up default clock polarity, and activate chip; - * this implicitly updates clock and spi modes as - * previously recorded for this device via setup(). - * (and also deselects any other chip that might be - * selected ...) - */ - if (cs_change) { - bitbang->chipselect(spi, BITBANG_CS_ACTIVE); - ndelay(nsecs); - } - cs_change = t->cs_change; - if (!t->tx_buf && !t->rx_buf && t->len) { - status = -EINVAL; - break; - } - - /* transfer data. the lower level code handles any - * new dma mappings it needs. our caller always gave - * us dma-safe buffers. - */ - if (t->len) { - /* REVISIT dma API still needs a designated - * DMA_ADDR_INVALID; ~0 might be better. - */ - if (!m->is_dma_mapped) - t->rx_dma = t->tx_dma = 0; - status = bitbang->txrx_bufs(spi, t); - } - if (status > 0) - m->actual_length += status; - if (status != t->len) { - /* always report some kind of error */ - if (status >= 0) - status = -EREMOTEIO; - break; - } - status = 0; + struct spi_bitbang *bitbang = spi_master_get_devdata(master); + int status = 0; - /* protocol tweaks before next transfer */ - if (t->delay_usecs) - udelay(t->delay_usecs); - - if (cs_change && - !list_is_last(&t->transfer_list, &m->transfers)) { - /* sometimes a short mid-message deselect of the chip - * may be needed to terminate a mode or command - */ - ndelay(nsecs); - bitbang->chipselect(spi, BITBANG_CS_INACTIVE); - ndelay(nsecs); - } + if (bitbang->setup_transfer) { + status = bitbang->setup_transfer(spi, transfer); + if (status < 0) + goto out; } - m->status = status; + if (transfer->len) + status = bitbang->txrx_bufs(spi, transfer); - /* normally deactivate chipselect ... unless no error and - * cs_change has hinted that the next message will probably - * be for this chip too. - */ - if (!(status == 0 && cs_change)) { - ndelay(nsecs); - bitbang->chipselect(spi, BITBANG_CS_INACTIVE); - ndelay(nsecs); - } + if (status == transfer->len) + status = 0; + else if (status >= 0) + status = -EREMOTEIO; - spi_finalize_current_message(master); +out: + spi_finalize_current_transfer(master); return status; } @@ -378,17 +296,32 @@ static int spi_bitbang_transfer_one(struct spi_master *master, static int spi_bitbang_unprepare_hardware(struct spi_master *spi) { struct spi_bitbang *bitbang; - unsigned long flags; bitbang = spi_master_get_devdata(spi); - spin_lock_irqsave(&bitbang->lock, flags); + mutex_lock(&bitbang->lock); bitbang->busy = 0; - spin_unlock_irqrestore(&bitbang->lock, flags); + mutex_unlock(&bitbang->lock); return 0; } +static void spi_bitbang_set_cs(struct spi_device *spi, bool enable) +{ + struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master); + + /* SPI core provides CS high / low, but bitbang driver + * expects CS active + * spi device driver takes care of handling SPI_CS_HIGH + */ + enable = (!!(spi->mode & SPI_CS_HIGH) == enable); + + ndelay(SPI_BITBANG_CS_DELAY); + bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE : + BITBANG_CS_INACTIVE); + ndelay(SPI_BITBANG_CS_DELAY); +} + /*----------------------------------------------------------------------*/ /** @@ -427,7 +360,7 @@ int spi_bitbang_start(struct spi_bitbang *bitbang) if (!master || !bitbang->chipselect) return -EINVAL; - spin_lock_init(&bitbang->lock); + mutex_init(&bitbang->lock); if (!master->mode_bits) master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags; @@ -437,7 +370,8 @@ int spi_bitbang_start(struct spi_bitbang *bitbang) master->prepare_transfer_hardware = spi_bitbang_prepare_hardware; master->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware; - master->transfer_one_message = spi_bitbang_transfer_one; + master->transfer_one = spi_bitbang_transfer_one; + master->set_cs = spi_bitbang_set_cs; if (!bitbang->txrx_bufs) { bitbang->use_dma = 0; diff --git a/drivers/spi/spi-coldfire-qspi.c b/drivers/spi/spi-coldfire-qspi.c index 688956ff5095..23f6fffd75e1 100644 --- a/drivers/spi/spi-coldfire-qspi.c +++ b/drivers/spi/spi-coldfire-qspi.c @@ -420,19 +420,20 @@ static int mcfqspi_probe(struct platform_device *pdev) master->auto_runtime_pm = true; platform_set_drvdata(pdev, master); + pm_runtime_enable(&pdev->dev); status = devm_spi_register_master(&pdev->dev, master); if (status) { dev_dbg(&pdev->dev, "spi_register_master failed\n"); goto fail2; } - pm_runtime_enable(&pdev->dev); dev_info(&pdev->dev, "Coldfire QSPI bus driver\n"); return 0; fail2: + pm_runtime_disable(&pdev->dev); mcfqspi_cs_teardown(mcfqspi); fail1: clk_disable(mcfqspi->clk); diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index a85d863d4a44..7d3af3eacf57 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -215,18 +215,10 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value) struct davinci_spi_config *spicfg = spi->controller_data; u8 chip_sel = spi->chip_select; u16 spidat1 = CS_DEFAULT; - bool gpio_chipsel = false; - int gpio; dspi = spi_master_get_devdata(spi->master); pdata = &dspi->pdata; - if (spi->cs_gpio >= 0) { - /* SPI core parse and update master->cs_gpio */ - gpio_chipsel = true; - gpio = spi->cs_gpio; - } - /* program delay transfers if tx_delay is non zero */ if (spicfg->wdelay) spidat1 |= SPIDAT1_WDEL; @@ -235,11 +227,12 @@ static void davinci_spi_chipselect(struct spi_device *spi, int value) * Board specific chip select logic decides the polarity and cs * line for the controller */ - if (gpio_chipsel) { + if (spi->cs_gpio >= 0) { if (value == BITBANG_CS_ACTIVE) - gpio_set_value(gpio, spi->mode & SPI_CS_HIGH); + gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH); else - gpio_set_value(gpio, !(spi->mode & SPI_CS_HIGH)); + gpio_set_value(spi->cs_gpio, + !(spi->mode & SPI_CS_HIGH)); } else { if (value == BITBANG_CS_ACTIVE) { spidat1 |= SPIDAT1_CSHOLD_MASK; diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index 7edede6e024b..a6d7029a85ac 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -19,6 +19,7 @@ #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/of_platform.h> +#include <linux/property.h> #include "spi-dw.h" @@ -74,13 +75,11 @@ static int dw_spi_mmio_probe(struct platform_device *pdev) dws->max_freq = clk_get_rate(dwsmmio->clk); - of_property_read_u32(pdev->dev.of_node, "reg-io-width", - &dws->reg_io_width); + device_property_read_u32(&pdev->dev, "reg-io-width", &dws->reg_io_width); num_cs = 4; - if (pdev->dev.of_node) - of_property_read_u32(pdev->dev.of_node, "num-cs", &num_cs); + device_property_read_u32(&pdev->dev, "num-cs", &num_cs); dws->num_cs = num_cs; diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index 6d331e0db331..332ccb0539a7 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -23,11 +23,6 @@ #define DRIVER_NAME "dw_spi_pci" -struct dw_spi_pci { - struct pci_dev *pdev; - struct dw_spi dws; -}; - struct spi_pci_desc { int (*setup)(struct dw_spi *); u16 num_cs; @@ -48,7 +43,6 @@ static struct spi_pci_desc spi_pci_mid_desc_2 = { static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - struct dw_spi_pci *dwpci; struct dw_spi *dws; struct spi_pci_desc *desc = (struct spi_pci_desc *)ent->driver_data; int pci_bar = 0; @@ -58,14 +52,10 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) return ret; - dwpci = devm_kzalloc(&pdev->dev, sizeof(struct dw_spi_pci), - GFP_KERNEL); - if (!dwpci) + dws = devm_kzalloc(&pdev->dev, sizeof(*dws), GFP_KERNEL); + if (!dws) return -ENOMEM; - dwpci->pdev = pdev; - dws = &dwpci->dws; - /* Get basic io resource and map it */ dws->paddr = pci_resource_start(pdev, pci_bar); @@ -74,7 +64,6 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return ret; dws->regs = pcim_iomap_table(pdev)[pci_bar]; - dws->irq = pdev->irq; /* @@ -99,7 +88,7 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return ret; /* PCI hook and SPI hook use the same drv data */ - pci_set_drvdata(pdev, dwpci); + pci_set_drvdata(pdev, dws); dev_info(&pdev->dev, "found PCI SPI controller(ID: %04x:%04x)\n", pdev->vendor, pdev->device); @@ -109,26 +98,26 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) static void spi_pci_remove(struct pci_dev *pdev) { - struct dw_spi_pci *dwpci = pci_get_drvdata(pdev); + struct dw_spi *dws = pci_get_drvdata(pdev); - dw_spi_remove_host(&dwpci->dws); + dw_spi_remove_host(dws); } #ifdef CONFIG_PM_SLEEP static int spi_suspend(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); - struct dw_spi_pci *dwpci = pci_get_drvdata(pdev); + struct dw_spi *dws = pci_get_drvdata(pdev); - return dw_spi_suspend_host(&dwpci->dws); + return dw_spi_suspend_host(dws); } static int spi_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); - struct dw_spi_pci *dwpci = pci_get_drvdata(pdev); + struct dw_spi *dws = pci_get_drvdata(pdev); - return dw_spi_resume_host(&dwpci->dws); + return dw_spi_resume_host(dws); } #endif diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 4fbfcdc5cb24..882cd6618cd5 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -30,19 +30,13 @@ /* Slave spi_dev related */ struct chip_data { - u16 cr0; u8 cs; /* chip select pin */ - u8 n_bytes; /* current is a 1/2/4 byte op */ u8 tmode; /* TR/TO/RO/EEPROM */ u8 type; /* SPI/SSP/MicroWire */ u8 poll_mode; /* 1 means use poll mode */ - u32 dma_width; - u32 rx_threshold; - u32 tx_threshold; u8 enable_dma; - u8 bits_per_word; u16 clk_div; /* baud rate divider */ u32 speed_hz; /* baud rate */ void (*cs_control)(u32 command); @@ -289,14 +283,11 @@ static int dw_spi_transfer_one(struct spi_master *master, struct chip_data *chip = spi_get_ctldata(spi); u8 imask = 0; u16 txlevel = 0; - u16 clk_div = 0; - u32 speed = 0; - u32 cr0 = 0; + u16 clk_div; + u32 cr0; int ret; dws->dma_mapped = 0; - dws->n_bytes = chip->n_bytes; - dws->dma_width = chip->dma_width; dws->tx = (void *)transfer->tx_buf; dws->tx_end = dws->tx + transfer->len; @@ -306,37 +297,30 @@ static int dw_spi_transfer_one(struct spi_master *master, spi_enable_chip(dws, 0); - cr0 = chip->cr0; - /* Handle per transfer options for bpw and speed */ - if (transfer->speed_hz) { - speed = chip->speed_hz; - - if ((transfer->speed_hz != speed) || !chip->clk_div) { - speed = transfer->speed_hz; - - /* clk_div doesn't support odd number */ - clk_div = (dws->max_freq / speed + 1) & 0xfffe; + if (transfer->speed_hz != chip->speed_hz) { + /* clk_div doesn't support odd number */ + clk_div = (dws->max_freq / transfer->speed_hz + 1) & 0xfffe; - chip->speed_hz = speed; - chip->clk_div = clk_div; + chip->speed_hz = transfer->speed_hz; + chip->clk_div = clk_div; - spi_set_clk(dws, chip->clk_div); - } + spi_set_clk(dws, chip->clk_div); } - if (transfer->bits_per_word) { - if (transfer->bits_per_word == 8) { - dws->n_bytes = 1; - dws->dma_width = 1; - } else if (transfer->bits_per_word == 16) { - dws->n_bytes = 2; - dws->dma_width = 2; - } - cr0 = (transfer->bits_per_word - 1) - | (chip->type << SPI_FRF_OFFSET) - | (spi->mode << SPI_MODE_OFFSET) - | (chip->tmode << SPI_TMOD_OFFSET); + if (transfer->bits_per_word == 8) { + dws->n_bytes = 1; + dws->dma_width = 1; + } else if (transfer->bits_per_word == 16) { + dws->n_bytes = 2; + dws->dma_width = 2; + } else { + return -EINVAL; } + /* Default SPI mode is SCPOL = 0, SCPH = 0 */ + cr0 = (transfer->bits_per_word - 1) + | (chip->type << SPI_FRF_OFFSET) + | (spi->mode << SPI_MODE_OFFSET) + | (chip->tmode << SPI_TMOD_OFFSET); /* * Adjust transfer mode if necessary. Requires platform dependent @@ -439,34 +423,9 @@ static int dw_spi_setup(struct spi_device *spi) chip->poll_mode = chip_info->poll_mode; chip->type = chip_info->type; - - chip->rx_threshold = 0; - chip->tx_threshold = 0; - } - - if (spi->bits_per_word == 8) { - chip->n_bytes = 1; - chip->dma_width = 1; - } else if (spi->bits_per_word == 16) { - chip->n_bytes = 2; - chip->dma_width = 2; - } - chip->bits_per_word = spi->bits_per_word; - - if (!spi->max_speed_hz) { - dev_err(&spi->dev, "No max speed HZ parameter\n"); - return -EINVAL; } chip->tmode = 0; /* Tx & Rx */ - /* Default SPI mode is SCPOL = 0, SCPH = 0 */ - chip->cr0 = (chip->bits_per_word - 1) - | (chip->type << SPI_FRF_OFFSET) - | (spi->mode << SPI_MODE_OFFSET) - | (chip->tmode << SPI_TMOD_OFFSET); - - if (spi->mode & SPI_LOOP) - chip->cr0 |= 1 << SPI_SRL_OFFSET; if (gpio_is_valid(spi->cs_gpio)) { ret = gpio_direction_output(spi->cs_gpio, @@ -524,13 +483,12 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws) dws->master = master; dws->type = SSI_MOTO_SPI; dws->dma_inited = 0; - dws->dma_addr = (dma_addr_t)(dws->paddr + 0x60); + dws->dma_addr = (dma_addr_t)(dws->paddr + DW_SPI_DR); snprintf(dws->name, sizeof(dws->name), "dw_spi%d", dws->bus_num); - ret = devm_request_irq(dev, dws->irq, dw_spi_irq, IRQF_SHARED, - dws->name, master); + ret = request_irq(dws->irq, dw_spi_irq, IRQF_SHARED, dws->name, master); if (ret < 0) { - dev_err(&master->dev, "can not get IRQ\n"); + dev_err(dev, "can not get IRQ\n"); goto err_free_master; } @@ -573,6 +531,7 @@ err_dma_exit: if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); spi_enable_chip(dws, 0); + free_irq(dws->irq, master); err_free_master: spi_master_put(master); return ret; @@ -581,28 +540,27 @@ EXPORT_SYMBOL_GPL(dw_spi_add_host); void dw_spi_remove_host(struct dw_spi *dws) { - if (!dws) - return; dw_spi_debugfs_remove(dws); if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); - spi_enable_chip(dws, 0); - /* Disable clk */ - spi_set_clk(dws, 0); + + spi_shutdown_chip(dws); + + free_irq(dws->irq, dws->master); } EXPORT_SYMBOL_GPL(dw_spi_remove_host); int dw_spi_suspend_host(struct dw_spi *dws) { - int ret = 0; + int ret; ret = spi_master_suspend(dws->master); if (ret) return ret; - spi_enable_chip(dws, 0); - spi_set_clk(dws, 0); - return ret; + + spi_shutdown_chip(dws); + return 0; } EXPORT_SYMBOL_GPL(dw_spi_suspend_host); diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index b75ed327d5a2..35589a270468 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -225,6 +225,12 @@ static inline void spi_reset_chip(struct dw_spi *dws) spi_enable_chip(dws, 1); } +static inline void spi_shutdown_chip(struct dw_spi *dws) +{ + spi_enable_chip(dws, 0); + spi_set_clk(dws, 0); +} + /* * Each SPI slave device to work with dw_api controller should * has such a structure claiming its working mode (poll or PIO/DMA), diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 86bcdd68c1fe..59a11437db70 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -409,9 +409,6 @@ static int dspi_transfer_one_message(struct spi_master *master, SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF); regmap_write(dspi->regmap, SPI_CTAR(dspi->cs), dspi->cur_chip->ctar_val); - if (transfer->speed_hz) - regmap_write(dspi->regmap, SPI_CTAR(dspi->cs), - dspi->cur_chip->ctar_val); trans_mode = dspi->devtype_data->trans_mode; switch (trans_mode) { diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index f9deb84e4e55..0e5723ab47f0 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -336,13 +336,20 @@ static int __maybe_unused mx51_ecspi_config(struct spi_imx_data *spi_imx, if (config->mode & SPI_CPHA) cfg |= MX51_ECSPI_CONFIG_SCLKPHA(config->cs); + else + cfg &= ~MX51_ECSPI_CONFIG_SCLKPHA(config->cs); if (config->mode & SPI_CPOL) { cfg |= MX51_ECSPI_CONFIG_SCLKPOL(config->cs); cfg |= MX51_ECSPI_CONFIG_SCLKCTL(config->cs); + } else { + cfg &= ~MX51_ECSPI_CONFIG_SCLKPOL(config->cs); + cfg &= ~MX51_ECSPI_CONFIG_SCLKCTL(config->cs); } if (config->mode & SPI_CS_HIGH) cfg |= MX51_ECSPI_CONFIG_SSBPOL(config->cs); + else + cfg &= ~MX51_ECSPI_CONFIG_SSBPOL(config->cs); writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL); writel(cfg, spi_imx->base + MX51_ECSPI_CONFIG); diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index 1e75341689a6..c3ec46cd9f91 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -302,11 +302,9 @@ static int mpc512x_psc_spi_msg_xfer(struct spi_master *master, cs_change = 1; status = 0; list_for_each_entry(t, &m->transfers, transfer_list) { - if (t->bits_per_word || t->speed_hz) { - status = mpc512x_psc_spi_transfer_setup(spi, t); - if (status < 0) - break; - } + status = mpc512x_psc_spi_transfer_setup(spi, t); + if (status < 0) + break; if (cs_change) mpc512x_psc_spi_activate_cs(spi); diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index ecb6c58238c4..563954a61424 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -20,6 +20,7 @@ #include <linux/ioport.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/platform_device.h> #include <linux/platform_data/spi-mt65xx.h> #include <linux/pm_runtime.h> @@ -84,7 +85,8 @@ struct mtk_spi_compatible { struct mtk_spi { void __iomem *base; u32 state; - u32 pad_sel; + int pad_num; + u32 *pad_sel; struct clk *parent_clk, *sel_clk, *spi_clk; struct spi_transfer *cur_transfer; u32 xfer_len; @@ -131,10 +133,28 @@ static void mtk_spi_reset(struct mtk_spi *mdata) writel(reg_val, mdata->base + SPI_CMD_REG); } -static void mtk_spi_config(struct mtk_spi *mdata, - struct mtk_chip_config *chip_config) +static int mtk_spi_prepare_message(struct spi_master *master, + struct spi_message *msg) { + u16 cpha, cpol; u32 reg_val; + struct spi_device *spi = msg->spi; + struct mtk_chip_config *chip_config = spi->controller_data; + struct mtk_spi *mdata = spi_master_get_devdata(master); + + cpha = spi->mode & SPI_CPHA ? 1 : 0; + cpol = spi->mode & SPI_CPOL ? 1 : 0; + + reg_val = readl(mdata->base + SPI_CMD_REG); + if (cpha) + reg_val |= SPI_CMD_CPHA; + else + reg_val &= ~SPI_CMD_CPHA; + if (cpol) + reg_val |= SPI_CMD_CPOL; + else + reg_val &= ~SPI_CMD_CPOL; + writel(reg_val, mdata->base + SPI_CMD_REG); reg_val = readl(mdata->base + SPI_CMD_REG); @@ -170,38 +190,8 @@ static void mtk_spi_config(struct mtk_spi *mdata, /* pad select */ if (mdata->dev_comp->need_pad_sel) - writel(mdata->pad_sel, mdata->base + SPI_PAD_SEL_REG); -} - -static int mtk_spi_prepare_message(struct spi_master *master, - struct spi_message *msg) -{ - u32 reg_val; - u8 cpha, cpol; - struct mtk_chip_config *chip_config; - struct spi_device *spi = msg->spi; - struct mtk_spi *mdata = spi_master_get_devdata(master); - - cpha = spi->mode & SPI_CPHA ? 1 : 0; - cpol = spi->mode & SPI_CPOL ? 1 : 0; - - reg_val = readl(mdata->base + SPI_CMD_REG); - if (cpha) - reg_val |= SPI_CMD_CPHA; - else - reg_val &= ~SPI_CMD_CPHA; - if (cpol) - reg_val |= SPI_CMD_CPOL; - else - reg_val &= ~SPI_CMD_CPOL; - writel(reg_val, mdata->base + SPI_CMD_REG); - - chip_config = spi->controller_data; - if (!chip_config) { - chip_config = (void *)&mtk_default_chip_info; - spi->controller_data = chip_config; - } - mtk_spi_config(mdata, chip_config); + writel(mdata->pad_sel[spi->chip_select], + mdata->base + SPI_PAD_SEL_REG); return 0; } @@ -413,6 +403,19 @@ static bool mtk_spi_can_dma(struct spi_master *master, return xfer->len > MTK_SPI_MAX_FIFO_SIZE; } +static int mtk_spi_setup(struct spi_device *spi) +{ + struct mtk_spi *mdata = spi_master_get_devdata(spi->master); + + if (!spi->controller_data) + spi->controller_data = (void *)&mtk_default_chip_info; + + if (mdata->dev_comp->need_pad_sel) + gpio_direction_output(spi->cs_gpio, !(spi->mode & SPI_CS_HIGH)); + + return 0; +} + static irqreturn_t mtk_spi_interrupt(int irq, void *dev_id) { u32 cmd, reg_val, cnt; @@ -484,7 +487,7 @@ static int mtk_spi_probe(struct platform_device *pdev) struct mtk_spi *mdata; const struct of_device_id *of_id; struct resource *res; - int irq, ret; + int i, irq, ret; master = spi_alloc_master(&pdev->dev, sizeof(*mdata)); if (!master) { @@ -500,6 +503,7 @@ static int mtk_spi_probe(struct platform_device *pdev) master->prepare_message = mtk_spi_prepare_message; master->transfer_one = mtk_spi_transfer_one; master->can_dma = mtk_spi_can_dma; + master->setup = mtk_spi_setup; of_id = of_match_node(mtk_spi_of_match, pdev->dev.of_node); if (!of_id) { @@ -514,21 +518,34 @@ static int mtk_spi_probe(struct platform_device *pdev) master->flags = SPI_MASTER_MUST_TX; if (mdata->dev_comp->need_pad_sel) { - ret = of_property_read_u32(pdev->dev.of_node, - "mediatek,pad-select", - &mdata->pad_sel); - if (ret) { - dev_err(&pdev->dev, "failed to read pad select: %d\n", - ret); + mdata->pad_num = of_property_count_u32_elems( + pdev->dev.of_node, + "mediatek,pad-select"); + if (mdata->pad_num < 0) { + dev_err(&pdev->dev, + "No 'mediatek,pad-select' property\n"); + ret = -EINVAL; goto err_put_master; } - if (mdata->pad_sel > MT8173_SPI_MAX_PAD_SEL) { - dev_err(&pdev->dev, "wrong pad-select: %u\n", - mdata->pad_sel); - ret = -EINVAL; + mdata->pad_sel = devm_kmalloc_array(&pdev->dev, mdata->pad_num, + sizeof(u32), GFP_KERNEL); + if (!mdata->pad_sel) { + ret = -ENOMEM; goto err_put_master; } + + for (i = 0; i < mdata->pad_num; i++) { + of_property_read_u32_index(pdev->dev.of_node, + "mediatek,pad-select", + i, &mdata->pad_sel[i]); + if (mdata->pad_sel[i] > MT8173_SPI_MAX_PAD_SEL) { + dev_err(&pdev->dev, "wrong pad-sel[%d]: %u\n", + i, mdata->pad_sel[i]); + ret = -EINVAL; + goto err_put_master; + } + } } platform_set_drvdata(pdev, master); @@ -606,6 +623,26 @@ static int mtk_spi_probe(struct platform_device *pdev) goto err_put_master; } + if (mdata->dev_comp->need_pad_sel) { + if (mdata->pad_num != master->num_chipselect) { + dev_err(&pdev->dev, + "pad_num does not match num_chipselect(%d != %d)\n", + mdata->pad_num, master->num_chipselect); + ret = -EINVAL; + goto err_put_master; + } + + for (i = 0; i < master->num_chipselect; i++) { + ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i], + dev_name(&pdev->dev)); + if (ret) { + dev_err(&pdev->dev, + "can't get CS GPIO %i\n", i); + goto err_put_master; + } + } + } + return 0; err_disable_clk: diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c index 76656a77ec12..b5911282a611 100644 --- a/drivers/spi/spi-oc-tiny.c +++ b/drivers/spi/spi-oc-tiny.c @@ -207,8 +207,7 @@ static int tiny_spi_of_probe(struct platform_device *pdev) struct tiny_spi *hw = platform_get_drvdata(pdev); struct device_node *np = pdev->dev.of_node; unsigned int i; - const __be32 *val; - int len; + u32 val; if (!np) return 0; @@ -226,13 +225,10 @@ static int tiny_spi_of_probe(struct platform_device *pdev) return -ENODEV; } hw->bitbang.master->dev.of_node = pdev->dev.of_node; - val = of_get_property(pdev->dev.of_node, - "clock-frequency", &len); - if (val && len >= sizeof(__be32)) - hw->freq = be32_to_cpup(val); - val = of_get_property(pdev->dev.of_node, "baud-width", &len); - if (val && len >= sizeof(__be32)) - hw->baudwidth = be32_to_cpup(val); + if (!of_property_read_u32(np, "clock-frequency", &val)) + hw->freq = val; + if (!of_property_read_u32(np, "baud-width", &val)) + hw->baudwidth = val; return 0; } #else /* !CONFIG_OF */ diff --git a/drivers/spi/spi-octeon.c b/drivers/spi/spi-octeon.c index e99d6a93d394..07e4ce8273df 100644 --- a/drivers/spi/spi-octeon.c +++ b/drivers/spi/spi-octeon.c @@ -65,7 +65,7 @@ static int octeon_spi_do_transfer(struct octeon_spi *p, cpha = mode & SPI_CPHA; cpol = mode & SPI_CPOL; - speed_hz = xfer->speed_hz ? : spi->max_speed_hz; + speed_hz = xfer->speed_hz; clkdiv = octeon_get_io_clock_rate() / (2 * speed_hz); diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c index 35b332dacb13..76a8425be227 100644 --- a/drivers/spi/spi-omap-100k.c +++ b/drivers/spi/spi-omap-100k.c @@ -244,12 +244,12 @@ static int omap1_spi100k_setup_transfer(struct spi_device *spi, { struct omap1_spi100k *spi100k = spi_master_get_devdata(spi->master); struct omap1_spi100k_cs *cs = spi->controller_state; - u8 word_len = spi->bits_per_word; + u8 word_len; - if (t != NULL && t->bits_per_word) + if (t != NULL) word_len = t->bits_per_word; - if (!word_len) - word_len = 8; + else + word_len = spi->bits_per_word; if (spi->bits_per_word > 32) return -EINVAL; @@ -302,7 +302,6 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master, struct spi_device *spi = m->spi; struct spi_transfer *t = NULL; int cs_active = 0; - int par_override = 0; int status = 0; list_for_each_entry(t, &m->transfers, transfer_list) { @@ -310,14 +309,9 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master, status = -EINVAL; break; } - if (par_override || t->speed_hz || t->bits_per_word) { - par_override = 1; - status = omap1_spi100k_setup_transfer(spi, t); - if (status < 0) - break; - if (!t->speed_hz && !t->bits_per_word) - par_override = 0; - } + status = omap1_spi100k_setup_transfer(spi, t); + if (status < 0) + break; if (!cs_active) { omap1_spi100k_force_cs(spi100k, 1); @@ -347,11 +341,7 @@ static int omap1_spi100k_transfer_one_message(struct spi_master *master, } } - /* Restore defaults if they were overriden */ - if (par_override) { - par_override = 0; - status = omap1_spi100k_setup_transfer(spi, NULL); - } + status = omap1_spi100k_setup_transfer(spi, NULL); if (cs_active) omap1_spi100k_force_cs(spi100k, 0); diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c index 55576db31549..ce8dbdbce312 100644 --- a/drivers/spi/spi-omap-uwire.c +++ b/drivers/spi/spi-omap-uwire.c @@ -205,7 +205,7 @@ static void uwire_chipselect(struct spi_device *spi, int value) static int uwire_txrx(struct spi_device *spi, struct spi_transfer *t) { unsigned len = t->len; - unsigned bits = t->bits_per_word ? : spi->bits_per_word; + unsigned bits = t->bits_per_word; unsigned bytes; u16 val, w; int status = 0; @@ -344,9 +344,10 @@ static int uwire_setup_transfer(struct spi_device *spi, struct spi_transfer *t) /* assume it's already enabled */ rate = clk_get_rate(uwire->ck); - hz = spi->max_speed_hz; - if (t != NULL && t->speed_hz) + if (t != NULL) hz = t->speed_hz; + else + hz = spi->max_speed_hz; if (!hz) { pr_debug("%s: zero speed?\n", dev_name(&spi->dev)); diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 3d09e0b69b73..1f8903d356e5 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -1217,6 +1217,33 @@ out: return status; } +static int omap2_mcspi_prepare_message(struct spi_master *master, + struct spi_message *msg) +{ + struct omap2_mcspi *mcspi = spi_master_get_devdata(master); + struct omap2_mcspi_regs *ctx = &mcspi->ctx; + struct omap2_mcspi_cs *cs; + + /* Only a single channel can have the FORCE bit enabled + * in its chconf0 register. + * Scan all channels and disable them except the current one. + * A FORCE can remain from a last transfer having cs_change enabled + */ + list_for_each_entry(cs, &ctx->cs, node) { + if (msg->spi->controller_state == cs) + continue; + + if ((cs->chconf0 & OMAP2_MCSPI_CHCONF_FORCE)) { + cs->chconf0 &= ~OMAP2_MCSPI_CHCONF_FORCE; + writel_relaxed(cs->chconf0, + cs->base + OMAP2_MCSPI_CHCONF0); + readl_relaxed(cs->base + OMAP2_MCSPI_CHCONF0); + } + } + + return 0; +} + static int omap2_mcspi_transfer_one(struct spi_master *master, struct spi_device *spi, struct spi_transfer *t) { @@ -1344,6 +1371,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev) master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); master->setup = omap2_mcspi_setup; master->auto_runtime_pm = true; + master->prepare_message = omap2_mcspi_prepare_message; master->transfer_one = omap2_mcspi_transfer_one; master->set_cs = omap2_mcspi_set_cs; master->cleanup = omap2_mcspi_cleanup; diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c index 54fb984a3e17..dd3d0a218d8b 100644 --- a/drivers/spi/spi-ppc4xx.c +++ b/drivers/spi/spi-ppc4xx.c @@ -210,12 +210,12 @@ static int spi_ppc4xx_setupxfer(struct spi_device *spi, struct spi_transfer *t) if (in_8(&hw->regs->cdm) != cdm) out_8(&hw->regs->cdm, cdm); - spin_lock(&hw->bitbang.lock); + mutex_lock(&hw->bitbang.lock); if (!hw->bitbang.busy) { hw->bitbang.chipselect(spi, BITBANG_CS_INACTIVE); /* Need to ndelay here? */ } - spin_unlock(&hw->bitbang.lock); + mutex_unlock(&hw->bitbang.lock); return 0; } diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c index 66a173939be8..bd8b369a343c 100644 --- a/drivers/spi/spi-pxa2xx-dma.c +++ b/drivers/spi/spi-pxa2xx-dma.c @@ -344,10 +344,6 @@ void pxa2xx_spi_dma_release(struct driver_data *drv_data) } } -void pxa2xx_spi_dma_resume(struct driver_data *drv_data) -{ -} - int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip, struct spi_device *spi, u8 bits_per_word, u32 *burst_code, diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index a8ef38ebb9c9..b25dc71b0ea9 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -13,6 +13,7 @@ * GNU General Public License for more details. */ +#include <linux/bitops.h> #include <linux/init.h> #include <linux/module.h> #include <linux/device.h> @@ -61,9 +62,13 @@ MODULE_ALIAS("platform:pxa2xx-spi"); | QUARK_X1000_SSCR1_TFT \ | SSCR1_SPH | SSCR1_SPO | SSCR1_LBM) -#define GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24) -#define SPI_CS_CONTROL_SW_MODE BIT(0) -#define SPI_CS_CONTROL_CS_HIGH BIT(1) +#define LPSS_GENERAL_REG_RXTO_HOLDOFF_DISABLE BIT(24) +#define LPSS_CS_CONTROL_SW_MODE BIT(0) +#define LPSS_CS_CONTROL_CS_HIGH BIT(1) +#define LPSS_CS_CONTROL_CS_SEL_SHIFT 8 +#define LPSS_CS_CONTROL_CS_SEL_MASK (3 << LPSS_CS_CONTROL_CS_SEL_SHIFT) +#define LPSS_CAPS_CS_EN_SHIFT 9 +#define LPSS_CAPS_CS_EN_MASK (0xf << LPSS_CAPS_CS_EN_SHIFT) struct lpss_config { /* LPSS offset from drv_data->ioaddr */ @@ -72,6 +77,7 @@ struct lpss_config { int reg_general; int reg_ssp; int reg_cs_ctrl; + int reg_capabilities; /* FIFO thresholds */ u32 rx_threshold; u32 tx_threshold_lo; @@ -85,6 +91,7 @@ static const struct lpss_config lpss_platforms[] = { .reg_general = 0x08, .reg_ssp = 0x0c, .reg_cs_ctrl = 0x18, + .reg_capabilities = -1, .rx_threshold = 64, .tx_threshold_lo = 160, .tx_threshold_hi = 224, @@ -94,6 +101,7 @@ static const struct lpss_config lpss_platforms[] = { .reg_general = 0x08, .reg_ssp = 0x0c, .reg_cs_ctrl = 0x18, + .reg_capabilities = -1, .rx_threshold = 64, .tx_threshold_lo = 160, .tx_threshold_hi = 224, @@ -103,10 +111,21 @@ static const struct lpss_config lpss_platforms[] = { .reg_general = -1, .reg_ssp = 0x20, .reg_cs_ctrl = 0x24, + .reg_capabilities = 0xfc, .rx_threshold = 1, .tx_threshold_lo = 32, .tx_threshold_hi = 56, }, + { /* LPSS_BXT_SSP */ + .offset = 0x200, + .reg_general = -1, + .reg_ssp = 0x20, + .reg_cs_ctrl = 0x24, + .reg_capabilities = 0xfc, + .rx_threshold = 1, + .tx_threshold_lo = 16, + .tx_threshold_hi = 48, + }, }; static inline const struct lpss_config @@ -121,6 +140,7 @@ static bool is_lpss_ssp(const struct driver_data *drv_data) case LPSS_LPT_SSP: case LPSS_BYT_SSP: case LPSS_SPT_SSP: + case LPSS_BXT_SSP: return true; default: return false; @@ -249,7 +269,9 @@ static void lpss_ssp_setup(struct driver_data *drv_data) drv_data->lpss_base = drv_data->ioaddr + config->offset; /* Enable software chip select control */ - value = SPI_CS_CONTROL_SW_MODE | SPI_CS_CONTROL_CS_HIGH; + value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl); + value &= ~(LPSS_CS_CONTROL_SW_MODE | LPSS_CS_CONTROL_CS_HIGH); + value |= LPSS_CS_CONTROL_SW_MODE | LPSS_CS_CONTROL_CS_HIGH; __lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value); /* Enable multiblock DMA transfers */ @@ -259,7 +281,7 @@ static void lpss_ssp_setup(struct driver_data *drv_data) if (config->reg_general >= 0) { value = __lpss_ssp_read_priv(drv_data, config->reg_general); - value |= GENERAL_REG_RXTO_HOLDOFF_DISABLE; + value |= LPSS_GENERAL_REG_RXTO_HOLDOFF_DISABLE; __lpss_ssp_write_priv(drv_data, config->reg_general, value); } @@ -269,15 +291,34 @@ static void lpss_ssp_setup(struct driver_data *drv_data) static void lpss_ssp_cs_control(struct driver_data *drv_data, bool enable) { const struct lpss_config *config; - u32 value; + u32 value, cs; config = lpss_get_config(drv_data); value = __lpss_ssp_read_priv(drv_data, config->reg_cs_ctrl); - if (enable) - value &= ~SPI_CS_CONTROL_CS_HIGH; - else - value |= SPI_CS_CONTROL_CS_HIGH; + if (enable) { + cs = drv_data->cur_msg->spi->chip_select; + cs <<= LPSS_CS_CONTROL_CS_SEL_SHIFT; + if (cs != (value & LPSS_CS_CONTROL_CS_SEL_MASK)) { + /* + * When switching another chip select output active + * the output must be selected first and wait 2 ssp_clk + * cycles before changing state to active. Otherwise + * a short glitch will occur on the previous chip + * select since output select is latched but state + * control is not. + */ + value &= ~LPSS_CS_CONTROL_CS_SEL_MASK; + value |= cs; + __lpss_ssp_write_priv(drv_data, + config->reg_cs_ctrl, value); + ndelay(1000000000 / + (drv_data->master->max_speed_hz / 2)); + } + value &= ~LPSS_CS_CONTROL_CS_HIGH; + } else { + value |= LPSS_CS_CONTROL_CS_HIGH; + } __lpss_ssp_write_priv(drv_data, config->reg_cs_ctrl, value); } @@ -734,7 +775,7 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds) mul = (1 << 24) >> 1; /* Calculate initial quot */ - q1 = DIV_ROUND_CLOSEST(fref1, rate); + q1 = DIV_ROUND_UP(fref1, rate); /* Scale q1 if it's too big */ if (q1 > 256) { @@ -759,7 +800,7 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds) /* Case 2 */ - q2 = DIV_ROUND_CLOSEST(fref2, rate); + q2 = DIV_ROUND_UP(fref2, rate); r2 = abs(fref2 / q2 - rate); /* @@ -778,13 +819,13 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds) mul = (1 << 24) * 2 / 5; } - /* Check case 3 only If the divisor is big enough */ + /* Check case 3 only if the divisor is big enough */ if (fref / rate >= 80) { u64 fssp; u32 m; /* Calculate initial quot */ - q1 = DIV_ROUND_CLOSEST(fref, rate); + q1 = DIV_ROUND_UP(fref, rate); m = (1 << 24) / q1; /* Get the remainder */ @@ -806,7 +847,7 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds) static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate) { - unsigned long ssp_clk = drv_data->max_clk_rate; + unsigned long ssp_clk = drv_data->master->max_speed_hz; const struct ssp_device *ssp = drv_data->ssp; rate = min_t(int, ssp_clk, rate); @@ -818,8 +859,9 @@ static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate) } static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data, - struct chip_data *chip, int rate) + int rate) { + struct chip_data *chip = drv_data->cur_chip; unsigned int clk_div; switch (drv_data->ssp_type) { @@ -922,52 +964,55 @@ static void pump_transfers(unsigned long data) drv_data->read = drv_data->rx ? chip->read : null_reader; /* Change speed and bit per word on a per transfer */ - cr0 = chip->cr0; - if (transfer->speed_hz || transfer->bits_per_word) { - - bits = chip->bits_per_word; - speed = chip->speed_hz; - - if (transfer->speed_hz) - speed = transfer->speed_hz; - - if (transfer->bits_per_word) - bits = transfer->bits_per_word; - - clk_div = pxa2xx_ssp_get_clk_div(drv_data, chip, speed); - - if (bits <= 8) { - drv_data->n_bytes = 1; - drv_data->read = drv_data->read != null_reader ? - u8_reader : null_reader; - drv_data->write = drv_data->write != null_writer ? - u8_writer : null_writer; - } else if (bits <= 16) { - drv_data->n_bytes = 2; - drv_data->read = drv_data->read != null_reader ? - u16_reader : null_reader; - drv_data->write = drv_data->write != null_writer ? - u16_writer : null_writer; - } else if (bits <= 32) { - drv_data->n_bytes = 4; - drv_data->read = drv_data->read != null_reader ? - u32_reader : null_reader; - drv_data->write = drv_data->write != null_writer ? - u32_writer : null_writer; - } - /* if bits/word is changed in dma mode, then must check the - * thresholds and burst also */ - if (chip->enable_dma) { - if (pxa2xx_spi_set_dma_burst_and_threshold(chip, - message->spi, - bits, &dma_burst, - &dma_thresh)) - dev_warn_ratelimited(&message->spi->dev, - "pump_transfers: DMA burst size reduced to match bits_per_word\n"); - } - - cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, bits); + bits = transfer->bits_per_word; + speed = transfer->speed_hz; + + clk_div = pxa2xx_ssp_get_clk_div(drv_data, speed); + + if (bits <= 8) { + drv_data->n_bytes = 1; + drv_data->read = drv_data->read != null_reader ? + u8_reader : null_reader; + drv_data->write = drv_data->write != null_writer ? + u8_writer : null_writer; + } else if (bits <= 16) { + drv_data->n_bytes = 2; + drv_data->read = drv_data->read != null_reader ? + u16_reader : null_reader; + drv_data->write = drv_data->write != null_writer ? + u16_writer : null_writer; + } else if (bits <= 32) { + drv_data->n_bytes = 4; + drv_data->read = drv_data->read != null_reader ? + u32_reader : null_reader; + drv_data->write = drv_data->write != null_writer ? + u32_writer : null_writer; } + /* + * if bits/word is changed in dma mode, then must check the + * thresholds and burst also + */ + if (chip->enable_dma) { + if (pxa2xx_spi_set_dma_burst_and_threshold(chip, + message->spi, + bits, &dma_burst, + &dma_thresh)) + dev_warn_ratelimited(&message->spi->dev, + "pump_transfers: DMA burst size reduced to match bits_per_word\n"); + } + + /* NOTE: PXA25x_SSP _could_ use external clocking ... */ + cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, bits); + if (!pxa25x_ssp_comp(drv_data)) + dev_dbg(&message->spi->dev, "%u Hz actual, %s\n", + drv_data->master->max_speed_hz + / (1 + ((cr0 & SSCR0_SCR(0xfff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); + else + dev_dbg(&message->spi->dev, "%u Hz actual, %s\n", + drv_data->master->max_speed_hz / 2 + / (1 + ((cr0 & SSCR0_SCR(0x0ff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); message->state = RUNNING_STATE; @@ -1111,7 +1156,6 @@ static int setup(struct spi_device *spi) struct chip_data *chip; const struct lpss_config *config; struct driver_data *drv_data = spi_master_get_devdata(spi->master); - unsigned int clk_div; uint tx_thres, tx_hi_thres, rx_thres; switch (drv_data->ssp_type) { @@ -1123,6 +1167,7 @@ static int setup(struct spi_device *spi) case LPSS_LPT_SSP: case LPSS_BYT_SSP: case LPSS_SPT_SSP: + case LPSS_BXT_SSP: config = lpss_get_config(drv_data); tx_thres = config->tx_threshold_lo; tx_hi_thres = config->tx_threshold_hi; @@ -1203,11 +1248,6 @@ static int setup(struct spi_device *spi) } } - clk_div = pxa2xx_ssp_get_clk_div(drv_data, chip, spi->max_speed_hz); - chip->speed_hz = spi->max_speed_hz; - - chip->cr0 = pxa2xx_configure_sscr0(drv_data, clk_div, - spi->bits_per_word); switch (drv_data->ssp_type) { case QUARK_X1000_SSP: chip->threshold = (QUARK_X1000_SSCR1_RxTresh(rx_thres) @@ -1228,18 +1268,6 @@ static int setup(struct spi_device *spi) if (spi->mode & SPI_LOOP) chip->cr1 |= SSCR1_LBM; - /* NOTE: PXA25x_SSP _could_ use external clocking ... */ - if (!pxa25x_ssp_comp(drv_data)) - dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - drv_data->max_clk_rate - / (1 + ((chip->cr0 & SSCR0_SCR(0xfff)) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); - else - dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - drv_data->max_clk_rate / 2 - / (1 + ((chip->cr0 & SSCR0_SCR(0x0ff)) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); - if (spi->bits_per_word <= 8) { chip->n_bytes = 1; chip->read = u8_reader; @@ -1249,13 +1277,10 @@ static int setup(struct spi_device *spi) chip->read = u16_reader; chip->write = u16_writer; } else if (spi->bits_per_word <= 32) { - if (!is_quark_x1000_ssp(drv_data)) - chip->cr0 |= SSCR0_EDSS; chip->n_bytes = 4; chip->read = u32_reader; chip->write = u32_writer; } - chip->bits_per_word = spi->bits_per_word; spi_set_ctldata(spi, chip); @@ -1279,6 +1304,7 @@ static void cleanup(struct spi_device *spi) kfree(chip); } +#ifdef CONFIG_PCI #ifdef CONFIG_ACPI static const struct acpi_device_id pxa2xx_spi_acpi_match[] = { @@ -1292,6 +1318,23 @@ static const struct acpi_device_id pxa2xx_spi_acpi_match[] = { }; MODULE_DEVICE_TABLE(acpi, pxa2xx_spi_acpi_match); +static int pxa2xx_spi_get_port_id(struct acpi_device *adev) +{ + unsigned int devid; + int port_id = -1; + + if (adev && adev->pnp.unique_id && + !kstrtouint(adev->pnp.unique_id, 0, &devid)) + port_id = devid; + return port_id; +} +#else /* !CONFIG_ACPI */ +static int pxa2xx_spi_get_port_id(struct acpi_device *adev) +{ + return -1; +} +#endif + /* * PCI IDs of compound devices that integrate both host controller and private * integrated DMA engine. Please note these are not used in module @@ -1304,6 +1347,14 @@ static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = { /* SPT-H */ { PCI_VDEVICE(INTEL, 0xa129), LPSS_SPT_SSP }, { PCI_VDEVICE(INTEL, 0xa12a), LPSS_SPT_SSP }, + /* BXT */ + { PCI_VDEVICE(INTEL, 0x0ac2), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x0ac4), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x0ac6), LPSS_BXT_SSP }, + /* APL */ + { PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x5ac6), LPSS_BXT_SSP }, { }, }; @@ -1318,7 +1369,7 @@ static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param) } static struct pxa2xx_spi_master * -pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) +pxa2xx_spi_init_pdata(struct platform_device *pdev) { struct pxa2xx_spi_master *pdata; struct acpi_device *adev; @@ -1326,18 +1377,18 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) struct resource *res; const struct acpi_device_id *adev_id = NULL; const struct pci_device_id *pcidev_id = NULL; - int devid, type; + int type; - if (!ACPI_HANDLE(&pdev->dev) || - acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev)) - return NULL; + adev = ACPI_COMPANION(&pdev->dev); if (dev_is_pci(pdev->dev.parent)) pcidev_id = pci_match_id(pxa2xx_spi_pci_compound_match, to_pci_dev(pdev->dev.parent)); - else + else if (adev) adev_id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev); + else + return NULL; if (adev_id) type = (int)adev_id->driver_data; @@ -1371,10 +1422,7 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) ssp->irq = platform_get_irq(pdev, 0); ssp->type = type; ssp->pdev = pdev; - - ssp->port_id = -1; - if (adev->pnp.unique_id && !kstrtoint(adev->pnp.unique_id, 0, &devid)) - ssp->port_id = devid; + ssp->port_id = pxa2xx_spi_get_port_id(adev); pdata->num_chipselect = 1; pdata->enable_dma = true; @@ -1382,9 +1430,9 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) return pdata; } -#else +#else /* !CONFIG_PCI */ static inline struct pxa2xx_spi_master * -pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev) +pxa2xx_spi_init_pdata(struct platform_device *pdev) { return NULL; } @@ -1397,12 +1445,13 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) struct spi_master *master; struct driver_data *drv_data; struct ssp_device *ssp; + const struct lpss_config *config; int status; u32 tmp; platform_info = dev_get_platdata(dev); if (!platform_info) { - platform_info = pxa2xx_spi_acpi_get_pdata(pdev); + platform_info = pxa2xx_spi_init_pdata(pdev); if (!platform_info) { dev_err(&pdev->dev, "missing platform data\n"); return -ENODEV; @@ -1436,7 +1485,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP; master->bus_num = ssp->port_id; - master->num_chipselect = platform_info->num_chipselect; master->dma_alignment = DMA_ALIGNMENT; master->cleanup = cleanup; master->setup = setup; @@ -1489,7 +1537,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) /* Enable SOC clock */ clk_prepare_enable(ssp->clk); - drv_data->max_clk_rate = clk_get_rate(ssp->clk); + master->max_speed_hz = clk_get_rate(ssp->clk); /* Load default SSP configuration */ pxa2xx_spi_write(drv_data, SSCR0, 0); @@ -1522,6 +1570,19 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) if (is_lpss_ssp(drv_data)) lpss_ssp_setup(drv_data); + if (is_lpss_ssp(drv_data)) { + lpss_ssp_setup(drv_data); + config = lpss_get_config(drv_data); + if (config->reg_capabilities >= 0) { + tmp = __lpss_ssp_read_priv(drv_data, + config->reg_capabilities); + tmp &= LPSS_CAPS_CS_EN_MASK; + tmp >>= LPSS_CAPS_CS_EN_SHIFT; + platform_info->num_chipselect = ffz(tmp); + } + } + master->num_chipselect = platform_info->num_chipselect; + tasklet_init(&drv_data->pump_transfers, pump_transfers, (unsigned long)drv_data); @@ -1614,8 +1675,6 @@ static int pxa2xx_spi_resume(struct device *dev) struct ssp_device *ssp = drv_data->ssp; int status = 0; - pxa2xx_spi_dma_resume(drv_data); - /* Enable the SSP clock */ if (!pm_runtime_suspended(dev)) clk_prepare_enable(ssp->clk); diff --git a/drivers/spi/spi-pxa2xx.h b/drivers/spi/spi-pxa2xx.h index 0a9b6390a817..58efa98313aa 100644 --- a/drivers/spi/spi-pxa2xx.h +++ b/drivers/spi/spi-pxa2xx.h @@ -46,9 +46,6 @@ struct driver_data { u32 clear_sr; u32 mask_sr; - /* Maximun clock rate */ - unsigned long max_clk_rate; - /* Message Transfer pump */ struct tasklet_struct pump_transfers; @@ -86,10 +83,8 @@ struct driver_data { }; struct chip_data { - u32 cr0; u32 cr1; u32 dds_rate; - u32 psp; u32 timeout; u8 n_bytes; u32 dma_burst_size; @@ -98,8 +93,6 @@ struct chip_data { u16 lpss_rx_threshold; u16 lpss_tx_threshold; u8 enable_dma; - u8 bits_per_word; - u32 speed_hz; union { int gpio_cs; unsigned int frm; @@ -175,7 +168,6 @@ extern int pxa2xx_spi_dma_prepare(struct driver_data *drv_data, u32 dma_burst); extern void pxa2xx_spi_dma_start(struct driver_data *drv_data); extern int pxa2xx_spi_dma_setup(struct driver_data *drv_data); extern void pxa2xx_spi_dma_release(struct driver_data *drv_data); -extern void pxa2xx_spi_dma_resume(struct driver_data *drv_data); extern int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip, struct spi_device *spi, u8 bits_per_word, @@ -196,7 +188,6 @@ static inline int pxa2xx_spi_dma_setup(struct driver_data *drv_data) return 0; } static inline void pxa2xx_spi_dma_release(struct driver_data *drv_data) {} -static inline void pxa2xx_spi_dma_resume(struct driver_data *drv_data) {} static inline int pxa2xx_spi_set_dma_burst_and_threshold(struct chip_data *chip, struct spi_device *spi, u8 bits_per_word, diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c index f36bc320a807..4e7d1bfed7e6 100644 --- a/drivers/spi/spi-s3c24xx.c +++ b/drivers/spi/spi-s3c24xx.c @@ -198,12 +198,12 @@ static int s3c24xx_spi_setup(struct spi_device *spi) if (ret) return ret; - spin_lock(&hw->bitbang.lock); + mutex_lock(&hw->bitbang.lock); if (!hw->bitbang.busy) { hw->bitbang.chipselect(spi, BITBANG_CS_INACTIVE); /* need to ndelay for 0.5 clocktick ? */ } - spin_unlock(&hw->bitbang.lock); + mutex_unlock(&hw->bitbang.lock); return 0; } diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index cd1cfac0447f..8e86e7f6663a 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -32,6 +32,7 @@ #define MAX_SPI_PORTS 6 #define S3C64XX_SPI_QUIRK_POLL (1 << 0) #define S3C64XX_SPI_QUIRK_CS_AUTO (1 << 1) +#define AUTOSUSPEND_TIMEOUT 2000 /* Registers and bit-fields */ @@ -682,7 +683,7 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master, /* Only BPW and Speed may change across transfers */ bpw = xfer->bits_per_word; - speed = xfer->speed_hz ? : spi->max_speed_hz; + speed = xfer->speed_hz; if (bpw != sdd->cur_bpw || speed != sdd->cur_speed) { sdd->cur_bpw = bpw; @@ -859,13 +860,15 @@ static int s3c64xx_spi_setup(struct spi_device *spi) } } - pm_runtime_put(&sdd->pdev->dev); + pm_runtime_mark_last_busy(&sdd->pdev->dev); + pm_runtime_put_autosuspend(&sdd->pdev->dev); if (!(sdd->port_conf->quirks & S3C64XX_SPI_QUIRK_CS_AUTO)) writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL); return 0; setup_exit: - pm_runtime_put(&sdd->pdev->dev); + pm_runtime_mark_last_busy(&sdd->pdev->dev); + pm_runtime_put_autosuspend(&sdd->pdev->dev); /* setup() returns with device de-selected */ if (!(sdd->port_conf->quirks & S3C64XX_SPI_QUIRK_CS_AUTO)) writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL); @@ -1162,6 +1165,12 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) goto err2; } + pm_runtime_set_autosuspend_delay(&pdev->dev, AUTOSUSPEND_TIMEOUT); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + /* Setup Deufult Mode */ s3c64xx_spi_hwinit(sdd, sdd->port_id); @@ -1180,9 +1189,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN, sdd->regs + S3C64XX_SPI_INT_EN); - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); - ret = devm_spi_register_master(&pdev->dev, master); if (ret != 0) { dev_err(&pdev->dev, "cannot register SPI master: %d\n", ret); @@ -1195,9 +1201,16 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1, sdd->rx_dma.dmach, sdd->tx_dma.dmach); + pm_runtime_mark_last_busy(&pdev->dev); + pm_runtime_put_autosuspend(&pdev->dev); + return 0; err3: + pm_runtime_put_noidle(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); + clk_disable_unprepare(sdd->src_clk); err2: clk_disable_unprepare(sdd->clk); @@ -1212,7 +1225,7 @@ static int s3c64xx_spi_remove(struct platform_device *pdev) struct spi_master *master = spi_master_get(platform_get_drvdata(pdev)); struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master); - pm_runtime_disable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); writel(0, sdd->regs + S3C64XX_SPI_INT_EN); @@ -1220,6 +1233,10 @@ static int s3c64xx_spi_remove(struct platform_device *pdev) clk_disable_unprepare(sdd->clk); + pm_runtime_put_noidle(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); + return 0; } @@ -1233,10 +1250,9 @@ static int s3c64xx_spi_suspend(struct device *dev) if (ret) return ret; - if (!pm_runtime_suspended(dev)) { - clk_disable_unprepare(sdd->clk); - clk_disable_unprepare(sdd->src_clk); - } + ret = pm_runtime_force_suspend(dev); + if (ret < 0) + return ret; sdd->cur_speed = 0; /* Output Clock is stopped */ @@ -1248,14 +1264,14 @@ static int s3c64xx_spi_resume(struct device *dev) struct spi_master *master = dev_get_drvdata(dev); struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master); struct s3c64xx_spi_info *sci = sdd->cntrlr_info; + int ret; if (sci->cfg_gpio) sci->cfg_gpio(); - if (!pm_runtime_suspended(dev)) { - clk_prepare_enable(sdd->src_clk); - clk_prepare_enable(sdd->clk); - } + ret = pm_runtime_force_resume(dev); + if (ret < 0) + return ret; s3c64xx_spi_hwinit(sdd, sdd->port_id); diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index aa6d284131e0..64318fcfacf2 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -39,8 +39,6 @@ struct ti_qspi_regs { }; struct ti_qspi { - struct completion transfer_complete; - /* list synchronization */ struct mutex list_lock; @@ -62,10 +60,6 @@ struct ti_qspi { #define QSPI_PID (0x0) #define QSPI_SYSCONFIG (0x10) -#define QSPI_INTR_STATUS_RAW_SET (0x20) -#define QSPI_INTR_STATUS_ENABLED_CLEAR (0x24) -#define QSPI_INTR_ENABLE_SET_REG (0x28) -#define QSPI_INTR_ENABLE_CLEAR_REG (0x2c) #define QSPI_SPI_CLOCK_CNTRL_REG (0x40) #define QSPI_SPI_DC_REG (0x44) #define QSPI_SPI_CMD_REG (0x48) @@ -97,7 +91,6 @@ struct ti_qspi { #define QSPI_RD_DUAL (3 << 16) #define QSPI_RD_QUAD (7 << 16) #define QSPI_INVAL (4 << 16) -#define QSPI_WC_CMD_INT_EN (1 << 14) #define QSPI_FLEN(n) ((n - 1) << 0) #define QSPI_WLEN_MAX_BITS 128 #define QSPI_WLEN_MAX_BYTES 16 @@ -106,10 +99,6 @@ struct ti_qspi { #define BUSY 0x01 #define WC 0x02 -/* INTERRUPT REGISTER */ -#define QSPI_WC_INT_EN (1 << 1) -#define QSPI_WC_INT_DISABLE (1 << 1) - /* Device Control */ #define QSPI_DD(m, n) (m << (3 + n * 8)) #define QSPI_CKPHA(n) (1 << (2 + n * 8)) @@ -217,6 +206,24 @@ static inline u32 qspi_is_busy(struct ti_qspi *qspi) return stat & BUSY; } +static inline int ti_qspi_poll_wc(struct ti_qspi *qspi) +{ + u32 stat; + unsigned long timeout = jiffies + QSPI_COMPLETION_TIMEOUT; + + do { + stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); + if (stat & WC) + return 0; + cpu_relax(); + } while (time_after(timeout, jiffies)); + + stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); + if (stat & WC) + return 0; + return -ETIMEDOUT; +} + static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t) { int wlen, count, xfer_len; @@ -275,8 +282,7 @@ static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t) } ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); - if (!wait_for_completion_timeout(&qspi->transfer_complete, - QSPI_COMPLETION_TIMEOUT)) { + if (ti_qspi_poll_wc(qspi)) { dev_err(qspi->dev, "write timed out\n"); return -ETIMEDOUT; } @@ -315,8 +321,7 @@ static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t) return -EBUSY; ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); - if (!wait_for_completion_timeout(&qspi->transfer_complete, - QSPI_COMPLETION_TIMEOUT)) { + if (ti_qspi_poll_wc(qspi)) { dev_err(qspi->dev, "read timed out\n"); return -ETIMEDOUT; } @@ -388,9 +393,7 @@ static int ti_qspi_start_transfer_one(struct spi_master *master, qspi->cmd = 0; qspi->cmd |= QSPI_EN_CS(spi->chip_select); qspi->cmd |= QSPI_FLEN(frame_length); - qspi->cmd |= QSPI_WC_CMD_INT_EN; - ti_qspi_write(qspi, QSPI_WC_INT_EN, QSPI_INTR_ENABLE_SET_REG); ti_qspi_write(qspi, qspi->dc, QSPI_SPI_DC_REG); mutex_lock(&qspi->list_lock); @@ -410,39 +413,13 @@ static int ti_qspi_start_transfer_one(struct spi_master *master, mutex_unlock(&qspi->list_lock); + ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG); m->status = status; spi_finalize_current_message(master); - ti_qspi_write(qspi, qspi->cmd | QSPI_INVAL, QSPI_SPI_CMD_REG); - return status; } -static irqreturn_t ti_qspi_isr(int irq, void *dev_id) -{ - struct ti_qspi *qspi = dev_id; - u16 int_stat; - u32 stat; - - irqreturn_t ret = IRQ_HANDLED; - - int_stat = ti_qspi_read(qspi, QSPI_INTR_STATUS_ENABLED_CLEAR); - stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); - - if (!int_stat) { - dev_dbg(qspi->dev, "No IRQ triggered\n"); - ret = IRQ_NONE; - goto out; - } - - ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, - QSPI_INTR_STATUS_ENABLED_CLEAR); - if (stat & WC) - complete(&qspi->transfer_complete); -out: - return ret; -} - static int ti_qspi_runtime_resume(struct device *dev) { struct ti_qspi *qspi; @@ -551,22 +528,12 @@ static int ti_qspi_probe(struct platform_device *pdev) } } - ret = devm_request_irq(&pdev->dev, irq, ti_qspi_isr, 0, - dev_name(&pdev->dev), qspi); - if (ret < 0) { - dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n", - irq); - goto free_master; - } - qspi->fclk = devm_clk_get(&pdev->dev, "fck"); if (IS_ERR(qspi->fclk)) { ret = PTR_ERR(qspi->fclk); dev_err(&pdev->dev, "could not get clk: %d\n", ret); } - init_completion(&qspi->transfer_complete); - pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_set_autosuspend_delay(&pdev->dev, QSPI_AUTOSUSPEND_TIMEOUT); pm_runtime_enable(&pdev->dev); @@ -587,18 +554,7 @@ free_master: static int ti_qspi_remove(struct platform_device *pdev) { - struct ti_qspi *qspi = platform_get_drvdata(pdev); - int ret; - - ret = pm_runtime_get_sync(qspi->dev); - if (ret < 0) { - dev_err(qspi->dev, "pm_runtime_get_sync() failed\n"); - return ret; - } - - ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG); - - pm_runtime_put(qspi->dev); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); return 0; diff --git a/drivers/spi/spi-tle62x0.c b/drivers/spi/spi-tle62x0.c index daf5aa1c24c3..c6ae775289e5 100644 --- a/drivers/spi/spi-tle62x0.c +++ b/drivers/spi/spi-tle62x0.c @@ -307,7 +307,6 @@ static int tle62x0_remove(struct spi_device *spi) static struct spi_driver tle62x0_driver = { .driver = { .name = "tle62x0", - .owner = THIS_MODULE, }, .probe = tle62x0_probe, .remove = tle62x0_remove, diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c index 9190124b6d90..d69f8f8f3fa6 100644 --- a/drivers/spi/spi-txx9.c +++ b/drivers/spi/spi-txx9.c @@ -181,7 +181,7 @@ static void txx9spi_work_one(struct txx9spi *c, struct spi_message *m) u32 data; unsigned int len = t->len; unsigned int wsize; - u32 speed_hz = t->speed_hz ? : spi->max_speed_hz; + u32 speed_hz = t->speed_hz; u8 bits_per_word = t->bits_per_word; wsize = bits_per_word >> 3; /* in bytes */ diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index a339c1e9997a..3009121173cd 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -270,6 +270,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) while (remaining_words) { int n_words, tx_words, rx_words; + u32 sr; n_words = min(remaining_words, xspi->buffer_size); @@ -284,24 +285,33 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) if (use_irq) { xspi->write_fn(cr, xspi->regs + XSPI_CR_OFFSET); wait_for_completion(&xspi->done); - } else - while (!(xspi->read_fn(xspi->regs + XSPI_SR_OFFSET) & - XSPI_SR_TX_EMPTY_MASK)) - ; - - /* A transmit has just completed. Process received data and - * check for more data to transmit. Always inhibit the - * transmitter while the Isr refills the transmit register/FIFO, - * or make sure it is stopped if we're done. - */ - if (use_irq) + /* A transmit has just completed. Process received data + * and check for more data to transmit. Always inhibit + * the transmitter while the Isr refills the transmit + * register/FIFO, or make sure it is stopped if we're + * done. + */ xspi->write_fn(cr | XSPI_CR_TRANS_INHIBIT, - xspi->regs + XSPI_CR_OFFSET); + xspi->regs + XSPI_CR_OFFSET); + sr = XSPI_SR_TX_EMPTY_MASK; + } else + sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET); /* Read out all the data from the Rx FIFO */ rx_words = n_words; - while (rx_words--) - xilinx_spi_rx(xspi); + while (rx_words) { + if ((sr & XSPI_SR_TX_EMPTY_MASK) && (rx_words > 1)) { + xilinx_spi_rx(xspi); + rx_words--; + continue; + } + + sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET); + if (!(sr & XSPI_SR_RX_EMPTY_MASK)) { + xilinx_spi_rx(xspi); + rx_words--; + } + } remaining_words -= n_words; } diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index a5f53de813d3..e2415be209d5 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -123,6 +123,28 @@ SPI_STATISTICS_SHOW(bytes, "%llu"); SPI_STATISTICS_SHOW(bytes_rx, "%llu"); SPI_STATISTICS_SHOW(bytes_tx, "%llu"); +#define SPI_STATISTICS_TRANSFER_BYTES_HISTO(index, number) \ + SPI_STATISTICS_SHOW_NAME(transfer_bytes_histo##index, \ + "transfer_bytes_histo_" number, \ + transfer_bytes_histo[index], "%lu") +SPI_STATISTICS_TRANSFER_BYTES_HISTO(0, "0-1"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(1, "2-3"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(2, "4-7"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(3, "8-15"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(4, "16-31"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(5, "32-63"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(6, "64-127"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(7, "128-255"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(8, "256-511"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(9, "512-1023"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(10, "1024-2047"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(11, "2048-4095"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(12, "4096-8191"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(13, "8192-16383"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(14, "16384-32767"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(15, "32768-65535"); +SPI_STATISTICS_TRANSFER_BYTES_HISTO(16, "65536+"); + static struct attribute *spi_dev_attrs[] = { &dev_attr_modalias.attr, NULL, @@ -143,6 +165,23 @@ static struct attribute *spi_device_statistics_attrs[] = { &dev_attr_spi_device_bytes.attr, &dev_attr_spi_device_bytes_rx.attr, &dev_attr_spi_device_bytes_tx.attr, + &dev_attr_spi_device_transfer_bytes_histo0.attr, + &dev_attr_spi_device_transfer_bytes_histo1.attr, + &dev_attr_spi_device_transfer_bytes_histo2.attr, + &dev_attr_spi_device_transfer_bytes_histo3.attr, + &dev_attr_spi_device_transfer_bytes_histo4.attr, + &dev_attr_spi_device_transfer_bytes_histo5.attr, + &dev_attr_spi_device_transfer_bytes_histo6.attr, + &dev_attr_spi_device_transfer_bytes_histo7.attr, + &dev_attr_spi_device_transfer_bytes_histo8.attr, + &dev_attr_spi_device_transfer_bytes_histo9.attr, + &dev_attr_spi_device_transfer_bytes_histo10.attr, + &dev_attr_spi_device_transfer_bytes_histo11.attr, + &dev_attr_spi_device_transfer_bytes_histo12.attr, + &dev_attr_spi_device_transfer_bytes_histo13.attr, + &dev_attr_spi_device_transfer_bytes_histo14.attr, + &dev_attr_spi_device_transfer_bytes_histo15.attr, + &dev_attr_spi_device_transfer_bytes_histo16.attr, NULL, }; @@ -168,6 +207,23 @@ static struct attribute *spi_master_statistics_attrs[] = { &dev_attr_spi_master_bytes.attr, &dev_attr_spi_master_bytes_rx.attr, &dev_attr_spi_master_bytes_tx.attr, + &dev_attr_spi_master_transfer_bytes_histo0.attr, + &dev_attr_spi_master_transfer_bytes_histo1.attr, + &dev_attr_spi_master_transfer_bytes_histo2.attr, + &dev_attr_spi_master_transfer_bytes_histo3.attr, + &dev_attr_spi_master_transfer_bytes_histo4.attr, + &dev_attr_spi_master_transfer_bytes_histo5.attr, + &dev_attr_spi_master_transfer_bytes_histo6.attr, + &dev_attr_spi_master_transfer_bytes_histo7.attr, + &dev_attr_spi_master_transfer_bytes_histo8.attr, + &dev_attr_spi_master_transfer_bytes_histo9.attr, + &dev_attr_spi_master_transfer_bytes_histo10.attr, + &dev_attr_spi_master_transfer_bytes_histo11.attr, + &dev_attr_spi_master_transfer_bytes_histo12.attr, + &dev_attr_spi_master_transfer_bytes_histo13.attr, + &dev_attr_spi_master_transfer_bytes_histo14.attr, + &dev_attr_spi_master_transfer_bytes_histo15.attr, + &dev_attr_spi_master_transfer_bytes_histo16.attr, NULL, }; @@ -186,10 +242,15 @@ void spi_statistics_add_transfer_stats(struct spi_statistics *stats, struct spi_master *master) { unsigned long flags; + int l2len = min(fls(xfer->len), SPI_STATISTICS_HISTO_SIZE) - 1; + + if (l2len < 0) + l2len = 0; spin_lock_irqsave(&stats->lock, flags); stats->transfers++; + stats->transfer_bytes_histo[l2len]++; stats->bytes += xfer->len; if ((xfer->tx_buf) && @@ -270,15 +331,24 @@ EXPORT_SYMBOL_GPL(spi_bus_type); static int spi_drv_probe(struct device *dev) { const struct spi_driver *sdrv = to_spi_driver(dev->driver); + struct spi_device *spi = to_spi_device(dev); int ret; ret = of_clk_set_defaults(dev->of_node, false); if (ret) return ret; + if (dev->of_node) { + spi->irq = of_irq_get(dev->of_node, 0); + if (spi->irq == -EPROBE_DEFER) + return -EPROBE_DEFER; + if (spi->irq < 0) + spi->irq = 0; + } + ret = dev_pm_domain_attach(dev, true); if (ret != -EPROBE_DEFER) { - ret = sdrv->probe(to_spi_device(dev)); + ret = sdrv->probe(spi); if (ret) dev_pm_domain_detach(dev, true); } @@ -305,12 +375,15 @@ static void spi_drv_shutdown(struct device *dev) } /** - * spi_register_driver - register a SPI driver + * __spi_register_driver - register a SPI driver * @sdrv: the driver to register * Context: can sleep + * + * Return: zero on success, else a negative error code. */ -int spi_register_driver(struct spi_driver *sdrv) +int __spi_register_driver(struct module *owner, struct spi_driver *sdrv) { + sdrv->driver.owner = owner; sdrv->driver.bus = &spi_bus_type; if (sdrv->probe) sdrv->driver.probe = spi_drv_probe; @@ -320,7 +393,7 @@ int spi_register_driver(struct spi_driver *sdrv) sdrv->driver.shutdown = spi_drv_shutdown; return driver_register(&sdrv->driver); } -EXPORT_SYMBOL_GPL(spi_register_driver); +EXPORT_SYMBOL_GPL(__spi_register_driver); /*-------------------------------------------------------------------------*/ @@ -359,7 +432,7 @@ static DEFINE_MUTEX(board_lock); * needs to discard the spi_device without adding it, then it should * call spi_dev_put() on it. * - * Returns a pointer to the new device, or NULL. + * Return: a pointer to the new device, or NULL. */ struct spi_device *spi_alloc_device(struct spi_master *master) { @@ -418,7 +491,7 @@ static int spi_dev_check(struct device *dev, void *data) * Companion function to spi_alloc_device. Devices allocated with * spi_alloc_device can be added onto the spi bus with this function. * - * Returns 0 on success; negative errno on failure + * Return: 0 on success; negative errno on failure */ int spi_add_device(struct spi_device *spi) { @@ -491,7 +564,7 @@ EXPORT_SYMBOL_GPL(spi_add_device); * this is exported so that for example a USB or parport based adapter * driver could add devices (which it would learn about out-of-band). * - * Returns the new device, or NULL. + * Return: the new device, or NULL. */ struct spi_device *spi_new_device(struct spi_master *master, struct spi_board_info *chip) @@ -563,6 +636,8 @@ static void spi_match_master_to_boardinfo(struct spi_master *master, * * The board info passed can safely be __initdata ... but be careful of * any embedded pointers (platform_data, etc), they're copied as-is. + * + * Return: zero on success, else a negative error code. */ int spi_register_board_info(struct spi_board_info const *info, unsigned n) { @@ -597,7 +672,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable) if (spi->mode & SPI_CS_HIGH) enable = !enable; - if (spi->cs_gpio >= 0) + if (gpio_is_valid(spi->cs_gpio)) gpio_set_value(spi->cs_gpio, !enable); else if (spi->master->set_cs) spi->master->set_cs(spi, !enable); @@ -1140,6 +1215,8 @@ static int spi_init_queue(struct spi_master *master) * * If there are more messages in the queue, the next message is returned from * this call. + * + * Return: the next message in the queue, else NULL if the queue is empty. */ struct spi_message *spi_get_next_queued_message(struct spi_master *master) { @@ -1303,6 +1380,8 @@ static int __spi_queued_transfer(struct spi_device *spi, * spi_queued_transfer - transfer function for queued transfers * @spi: spi device which is requesting transfer * @msg: spi message which is to handled is queued to driver queue + * + * Return: zero on success, else a negative error code. */ static int spi_queued_transfer(struct spi_device *spi, struct spi_message *msg) { @@ -1433,9 +1512,6 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc) } spi->max_speed_hz = value; - /* IRQ */ - spi->irq = irq_of_parse_and_map(nc, 0); - /* Store a pointer to the node in the device structure */ of_node_get(nc); spi->dev.of_node = nc; @@ -1605,12 +1681,13 @@ static struct class spi_master_class = { * only ones directly touching chip registers. It's how they allocate * an spi_master structure, prior to calling spi_register_master(). * - * This must be called from context that can sleep. It returns the SPI - * master structure on success, else NULL. + * This must be called from context that can sleep. * * The caller is responsible for assigning the bus number and initializing * the master's methods before calling spi_register_master(); and (after errors * adding the device) calling spi_master_put() to prevent a memory leak. + * + * Return: the SPI master structure on success, else NULL. */ struct spi_master *spi_alloc_master(struct device *dev, unsigned size) { @@ -1694,6 +1771,8 @@ static int of_spi_register_master(struct spi_master *master) * success, else a negative error code (dropping the master's refcount). * After a successful return, the caller is responsible for calling * spi_unregister_master(). + * + * Return: zero on success, else a negative error code. */ int spi_register_master(struct spi_master *master) { @@ -1787,6 +1866,8 @@ static void devm_spi_unregister(struct device *dev, void *res) * * Register a SPI device as with spi_register_master() which will * automatically be unregister + * + * Return: zero on success, else a negative error code. */ int devm_spi_register_master(struct device *dev, struct spi_master *master) { @@ -1892,6 +1973,8 @@ static int __spi_master_match(struct device *dev, const void *data) * arch init time. It returns a refcounted pointer to the relevant * spi_master (which the caller must release), or NULL if there is * no such master registered. + * + * Return: the SPI master structure on success, else NULL. */ struct spi_master *spi_busnum_to_master(u16 bus_num) { @@ -1945,11 +2028,13 @@ static int __spi_validate_bits_per_word(struct spi_master *master, u8 bits_per_w * that the underlying controller or its driver does not support. For * example, not all hardware supports wire transfers using nine bit words, * LSB-first wire encoding, or active-high chipselects. + * + * Return: zero on success, else a negative error code. */ int spi_setup(struct spi_device *spi) { unsigned bad_bits, ugly_bits; - int status = 0; + int status; /* check mode to prevent that DUAL and QUAD set at the same time */ @@ -1986,17 +2071,18 @@ int spi_setup(struct spi_device *spi) if (!spi->bits_per_word) spi->bits_per_word = 8; - if (__spi_validate_bits_per_word(spi->master, spi->bits_per_word)) - return -EINVAL; + status = __spi_validate_bits_per_word(spi->master, spi->bits_per_word); + if (status) + return status; if (!spi->max_speed_hz) spi->max_speed_hz = spi->master->max_speed_hz; - spi_set_cs(spi, false); - if (spi->master->setup) status = spi->master->setup(spi); + spi_set_cs(spi, false); + dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max --> %d\n", (int) (spi->mode & (SPI_CPOL | SPI_CPHA)), (spi->mode & SPI_CS_HIGH) ? "cs_high, " : "", @@ -2162,6 +2248,8 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) * no other spi_message queued to that device will be processed. * (This rule applies equally to all the synchronous transfer calls, * which are wrappers around this core asynchronous primitive.) + * + * Return: zero on success, else a negative error code. */ int spi_async(struct spi_device *spi, struct spi_message *message) { @@ -2214,6 +2302,8 @@ EXPORT_SYMBOL_GPL(spi_async); * no other spi_message queued to that device will be processed. * (This rule applies equally to all the synchronous transfer calls, * which are wrappers around this core asynchronous primitive.) + * + * Return: zero on success, else a negative error code. */ int spi_async_locked(struct spi_device *spi, struct spi_message *message) { @@ -2329,7 +2419,7 @@ static int __spi_sync(struct spi_device *spi, struct spi_message *message, * Also, the caller is guaranteeing that the memory associated with the * message will not be freed before this call returns. * - * It returns zero on success, else a negative error code. + * Return: zero on success, else a negative error code. */ int spi_sync(struct spi_device *spi, struct spi_message *message) { @@ -2351,7 +2441,7 @@ EXPORT_SYMBOL_GPL(spi_sync); * SPI bus. It has to be preceded by a spi_bus_lock call. The SPI bus must * be released by a spi_bus_unlock call when the exclusive access is over. * - * It returns zero on success, else a negative error code. + * Return: zero on success, else a negative error code. */ int spi_sync_locked(struct spi_device *spi, struct spi_message *message) { @@ -2372,7 +2462,7 @@ EXPORT_SYMBOL_GPL(spi_sync_locked); * exclusive access is over. Data transfer must be done by spi_sync_locked * and spi_async_locked calls when the SPI bus lock is held. * - * It returns zero on success, else a negative error code. + * Return: always zero. */ int spi_bus_lock(struct spi_master *master) { @@ -2401,7 +2491,7 @@ EXPORT_SYMBOL_GPL(spi_bus_lock); * This call releases an SPI bus lock previously obtained by an spi_bus_lock * call. * - * It returns zero on success, else a negative error code. + * Return: always zero. */ int spi_bus_unlock(struct spi_master *master) { @@ -2436,6 +2526,8 @@ static u8 *buf; * portable code should never use this for more than 32 bytes. * Performance-sensitive or bulk transfer code should instead use * spi_{async,sync}() calls with dma-safe buffers. + * + * Return: zero on success, else a negative error code. */ int spi_write_then_read(struct spi_device *spi, const void *txbuf, unsigned n_tx, diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index ef008e52f953..91a0fcd72423 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -788,7 +788,6 @@ static int spidev_remove(struct spi_device *spi) static struct spi_driver spidev_spi_driver = { .driver = { .name = "spidev", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(spidev_dt_ids), }, .probe = spidev_probe, diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index 20e69f0b5cb0..3ccdec94fee7 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -327,7 +327,6 @@ MODULE_DEVICE_TABLE(of, dt_ids); \ static struct spi_driver fbtft_driver_spi_driver = { \ .driver = { \ .name = _name, \ - .owner = THIS_MODULE, \ .of_match_table = of_match_ptr(dt_ids), \ }, \ .probe = fbtft_driver_probe_spi, \ diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c index 704b78c78f13..ce0d254148e4 100644 --- a/drivers/staging/fbtft/flexfb.c +++ b/drivers/staging/fbtft/flexfb.c @@ -573,7 +573,6 @@ static int flexfb_remove_pdev(struct platform_device *pdev) static struct spi_driver flexfb_spi_driver = { .driver = { .name = DRVNAME, - .owner = THIS_MODULE, }, .probe = flexfb_probe_spi, .remove = flexfb_remove_spi, diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c index 10db685813c9..06c0b75ed26a 100644 --- a/drivers/staging/iio/accel/adis16201_core.c +++ b/drivers/staging/iio/accel/adis16201_core.c @@ -235,7 +235,6 @@ static int adis16201_remove(struct spi_device *spi) static struct spi_driver adis16201_driver = { .driver = { .name = "adis16201", - .owner = THIS_MODULE, }, .probe = adis16201_probe, .remove = adis16201_remove, diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c index fb593d23d5bc..de5b84ac842b 100644 --- a/drivers/staging/iio/accel/adis16203_core.c +++ b/drivers/staging/iio/accel/adis16203_core.c @@ -203,7 +203,6 @@ static int adis16203_remove(struct spi_device *spi) static struct spi_driver adis16203_driver = { .driver = { .name = "adis16203", - .owner = THIS_MODULE, }, .probe = adis16203_probe, .remove = adis16203_remove, diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c index ea0ac2467ac2..20a9df64f1ed 100644 --- a/drivers/staging/iio/accel/adis16204_core.c +++ b/drivers/staging/iio/accel/adis16204_core.c @@ -241,7 +241,6 @@ static int adis16204_remove(struct spi_device *spi) static struct spi_driver adis16204_driver = { .driver = { .name = "adis16204", - .owner = THIS_MODULE, }, .probe = adis16204_probe, .remove = adis16204_remove, diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c index d1dc1a3cb3ce..8b42bf8c3f60 100644 --- a/drivers/staging/iio/accel/adis16209_core.c +++ b/drivers/staging/iio/accel/adis16209_core.c @@ -235,7 +235,6 @@ static int adis16209_remove(struct spi_device *spi) static struct spi_driver adis16209_driver = { .driver = { .name = "adis16209", - .owner = THIS_MODULE, }, .probe = adis16209_probe, .remove = adis16209_remove, diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c index e46a91c69a31..d0165218b60c 100644 --- a/drivers/staging/iio/accel/adis16220_core.c +++ b/drivers/staging/iio/accel/adis16220_core.c @@ -482,7 +482,6 @@ static int adis16220_remove(struct spi_device *spi) static struct spi_driver adis16220_driver = { .driver = { .name = "adis16220", - .owner = THIS_MODULE, }, .probe = adis16220_probe, .remove = adis16220_remove, diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c index cb074e864408..1b5b685a8691 100644 --- a/drivers/staging/iio/accel/adis16240_core.c +++ b/drivers/staging/iio/accel/adis16240_core.c @@ -288,7 +288,6 @@ static int adis16240_remove(struct spi_device *spi) static struct spi_driver adis16240_driver = { .driver = { .name = "adis16240", - .owner = THIS_MODULE, }, .probe = adis16240_probe, .remove = adis16240_remove, diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c index 7a1939a66c93..7939ae6378d7 100644 --- a/drivers/staging/iio/accel/lis3l02dq_core.c +++ b/drivers/staging/iio/accel/lis3l02dq_core.c @@ -802,7 +802,6 @@ static int lis3l02dq_remove(struct spi_device *spi) static struct spi_driver lis3l02dq_driver = { .driver = { .name = "lis3l02dq", - .owner = THIS_MODULE, }, .probe = lis3l02dq_probe, .remove = lis3l02dq_remove, diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index 03cb22508a5d..02e930c55570 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -1197,7 +1197,6 @@ MODULE_DEVICE_TABLE(spi, sca3000_id); static struct spi_driver sca3000_driver = { .driver = { .name = "sca3000", - .owner = THIS_MODULE, }, .probe = sca3000_probe, .remove = sca3000_remove, diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index 5b87049cd3f9..bb40f3728742 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -707,7 +707,6 @@ MODULE_DEVICE_TABLE(spi, ad7192_id); static struct spi_driver ad7192_driver = { .driver = { .name = "ad7192", - .owner = THIS_MODULE, }, .probe = ad7192_probe, .remove = ad7192_remove, diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c index 45df714cc83a..35acb1a4669b 100644 --- a/drivers/staging/iio/adc/ad7280a.c +++ b/drivers/staging/iio/adc/ad7280a.c @@ -974,7 +974,6 @@ MODULE_DEVICE_TABLE(spi, ad7280_id); static struct spi_driver ad7280_driver = { .driver = { .name = "ad7280", - .owner = THIS_MODULE, }, .probe = ad7280_probe, .remove = ad7280_remove, diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c index b88f8825797d..cbb36317200e 100644 --- a/drivers/staging/iio/adc/ad7606_spi.c +++ b/drivers/staging/iio/adc/ad7606_spi.c @@ -103,7 +103,6 @@ MODULE_DEVICE_TABLE(spi, ad7606_id); static struct spi_driver ad7606_driver = { .driver = { .name = "ad7606", - .owner = THIS_MODULE, .pm = AD7606_SPI_PM_OPS, }, .probe = ad7606_spi_probe, diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c index 618b41faa289..3abc7789237f 100644 --- a/drivers/staging/iio/adc/ad7780.c +++ b/drivers/staging/iio/adc/ad7780.c @@ -264,7 +264,6 @@ MODULE_DEVICE_TABLE(spi, ad7780_id); static struct spi_driver ad7780_driver = { .driver = { .name = "ad7780", - .owner = THIS_MODULE, }, .probe = ad7780_probe, .remove = ad7780_remove, diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c index ccec57c5f70d..c8e156646528 100644 --- a/drivers/staging/iio/adc/ad7816.c +++ b/drivers/staging/iio/adc/ad7816.c @@ -432,7 +432,6 @@ MODULE_DEVICE_TABLE(spi, ad7816_id); static struct spi_driver ad7816_driver = { .driver = { .name = "ad7816", - .owner = THIS_MODULE, }, .probe = ad7816_probe, .id_table = ad7816_id, diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c index e480abb72e4a..5cd22743e140 100644 --- a/drivers/staging/iio/addac/adt7316-spi.c +++ b/drivers/staging/iio/addac/adt7316-spi.c @@ -132,7 +132,6 @@ static struct spi_driver adt7316_driver = { .driver = { .name = "adt7316", .pm = ADT7316_PM_OPS, - .owner = THIS_MODULE, }, .probe = adt7316_spi_probe, .id_table = adt7316_spi_id, diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c index a861fe0149b1..2b65faa6296a 100644 --- a/drivers/staging/iio/frequency/ad9832.c +++ b/drivers/staging/iio/frequency/ad9832.c @@ -339,7 +339,6 @@ MODULE_DEVICE_TABLE(spi, ad9832_id); static struct spi_driver ad9832_driver = { .driver = { .name = "ad9832", - .owner = THIS_MODULE, }, .probe = ad9832_probe, .remove = ad9832_remove, diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c index fcffe2c11685..6464f2cbe94b 100644 --- a/drivers/staging/iio/frequency/ad9834.c +++ b/drivers/staging/iio/frequency/ad9834.c @@ -446,7 +446,6 @@ MODULE_DEVICE_TABLE(spi, ad9834_id); static struct spi_driver ad9834_driver = { .driver = { .name = "ad9834", - .owner = THIS_MODULE, }, .probe = ad9834_probe, .remove = ad9834_remove, diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c index 981b63f83a7b..ab816a215eb8 100644 --- a/drivers/staging/iio/gyro/adis16060_core.c +++ b/drivers/staging/iio/gyro/adis16060_core.c @@ -208,7 +208,6 @@ static int adis16060_w_remove(struct spi_device *spi) static struct spi_driver adis16060_r_driver = { .driver = { .name = "adis16060_r", - .owner = THIS_MODULE, }, .probe = adis16060_r_probe, }; @@ -216,7 +215,6 @@ static struct spi_driver adis16060_r_driver = { static struct spi_driver adis16060_w_driver = { .driver = { .name = "adis16060_w", - .owner = THIS_MODULE, }, .probe = adis16060_w_probe, .remove = adis16060_w_remove, diff --git a/drivers/staging/iio/magnetometer/hmc5843_spi.c b/drivers/staging/iio/magnetometer/hmc5843_spi.c index 1549192c0dec..8be198058ea2 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_spi.c +++ b/drivers/staging/iio/magnetometer/hmc5843_spi.c @@ -88,7 +88,6 @@ static struct spi_driver hmc5843_driver = { .driver = { .name = "hmc5843", .pm = HMC5843_PM_OPS, - .owner = THIS_MODULE, }, .id_table = hmc5843_id, .probe = hmc5843_spi_probe, diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c index 188830d7e257..f129039bece3 100644 --- a/drivers/staging/iio/meter/ade7753.c +++ b/drivers/staging/iio/meter/ade7753.c @@ -534,7 +534,6 @@ static int ade7753_remove(struct spi_device *spi) static struct spi_driver ade7753_driver = { .driver = { .name = "ade7753", - .owner = THIS_MODULE, }, .probe = ade7753_probe, .remove = ade7753_remove, diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c index 664c6e5f76b1..1e950685e12f 100644 --- a/drivers/staging/iio/meter/ade7754.c +++ b/drivers/staging/iio/meter/ade7754.c @@ -575,7 +575,6 @@ static int ade7754_remove(struct spi_device *spi) static struct spi_driver ade7754_driver = { .driver = { .name = "ade7754", - .owner = THIS_MODULE, }, .probe = ade7754_probe, .remove = ade7754_remove, diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c index 38838085824f..0db23e4d1852 100644 --- a/drivers/staging/iio/meter/ade7758_core.c +++ b/drivers/staging/iio/meter/ade7758_core.c @@ -904,7 +904,6 @@ MODULE_DEVICE_TABLE(spi, ade7758_id); static struct spi_driver ade7758_driver = { .driver = { .name = "ade7758", - .owner = THIS_MODULE, }, .probe = ade7758_probe, .remove = ade7758_remove, diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c index 11c1edcc1ed6..684e612a88b9 100644 --- a/drivers/staging/iio/meter/ade7759.c +++ b/drivers/staging/iio/meter/ade7759.c @@ -490,7 +490,6 @@ static int ade7759_remove(struct spi_device *spi) static struct spi_driver ade7759_driver = { .driver = { .name = "ade7759", - .owner = THIS_MODULE, }, .probe = ade7759_probe, .remove = ade7759_remove, diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c index da774866512c..2413052c5bfb 100644 --- a/drivers/staging/iio/meter/ade7854-spi.c +++ b/drivers/staging/iio/meter/ade7854-spi.c @@ -314,7 +314,6 @@ MODULE_DEVICE_TABLE(spi, ade7854_id); static struct spi_driver ade7854_driver = { .driver = { .name = "ade7854", - .owner = THIS_MODULE, }, .probe = ade7854_spi_probe, .remove = ade7854_spi_remove, diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c index c17893b4918c..595e711d35a6 100644 --- a/drivers/staging/iio/resolver/ad2s1200.c +++ b/drivers/staging/iio/resolver/ad2s1200.c @@ -155,7 +155,6 @@ MODULE_DEVICE_TABLE(spi, ad2s1200_id); static struct spi_driver ad2s1200_driver = { .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, }, .probe = ad2s1200_probe, .id_table = ad2s1200_id, diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c index 3bd65f5c9cf5..d97aa2827412 100644 --- a/drivers/staging/iio/resolver/ad2s1210.c +++ b/drivers/staging/iio/resolver/ad2s1210.c @@ -735,7 +735,6 @@ MODULE_DEVICE_TABLE(spi, ad2s1210_id); static struct spi_driver ad2s1210_driver = { .driver = { .name = DRV_NAME, - .owner = THIS_MODULE, }, .probe = ad2s1210_probe, .remove = ad2s1210_remove, diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index c57a29616223..5b1c0db33e7f 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -100,7 +100,6 @@ MODULE_DEVICE_TABLE(spi, ad2s90_id); static struct spi_driver ad2s90_driver = { .driver = { .name = "ad2s90", - .owner = THIS_MODULE, }, .probe = ad2s90_probe, .id_table = ad2s90_id, diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index 20a3f8eeb264..9dba16f1fac4 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -946,7 +946,6 @@ MODULE_DEVICE_TABLE(of, spinand_dt); static struct spi_driver spinand_driver = { .driver = { .name = "mt29f", - .owner = THIS_MODULE, .of_match_table = spinand_dt, }, .probe = spinand_probe, diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c index 536a33b99be9..88246f7e435a 100644 --- a/drivers/tty/serial/ifx6x60.c +++ b/drivers/tty/serial/ifx6x60.c @@ -1362,7 +1362,7 @@ static struct spi_driver ifx_spi_driver = { .driver = { .name = DRVNAME, .pm = &ifx_spi_pm, - .owner = THIS_MODULE}, + }, .probe = ifx_spi_spi_probe, .shutdown = ifx_spi_spi_shutdown, .remove = ifx_spi_spi_remove, diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 077377259a2c..5c4c280b3207 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -904,7 +904,6 @@ static SIMPLE_DEV_PM_OPS(max3100_pm_ops, max3100_suspend, max3100_resume); static struct spi_driver max3100_driver = { .driver = { .name = "max3100", - .owner = THIS_MODULE, .pm = MAX3100_PM_OPS, }, .probe = max3100_probe, diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 182549f55904..d45133056f51 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1338,7 +1338,6 @@ MODULE_DEVICE_TABLE(spi, max310x_id_table); static struct spi_driver max310x_uart_driver = { .driver = { .name = MAX310X_NAME, - .owner = THIS_MODULE, .of_match_table = of_match_ptr(max310x_dt_ids), .pm = &max310x_pm_ops, }, diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c index 1ae8aa698fcb..edb5305b9d4d 100644 --- a/drivers/tty/serial/sc16is7xx.c +++ b/drivers/tty/serial/sc16is7xx.c @@ -1360,7 +1360,6 @@ MODULE_DEVICE_TABLE(spi, sc16is7xx_spi_id_table); static struct spi_driver sc16is7xx_spi_uart_driver = { .driver = { .name = SC16IS7XX_NAME, - .owner = THIS_MODULE, .of_match_table = of_match_ptr(sc16is7xx_dt_ids), }, .probe = sc16is7xx_spi_probe, diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c index fc1fd403973a..bd98706d1ce9 100644 --- a/drivers/usb/host/max3421-hcd.c +++ b/drivers/usb/host/max3421-hcd.c @@ -1944,7 +1944,6 @@ static struct spi_driver max3421_driver = { .remove = max3421_remove, .driver = { .name = "max3421-hcd", - .owner = THIS_MODULE, }, }; diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c index 5f897f99cc9b..5cca8ce45d4d 100644 --- a/drivers/video/backlight/ams369fg06.c +++ b/drivers/video/backlight/ams369fg06.c @@ -556,7 +556,6 @@ static void ams369fg06_shutdown(struct spi_device *spi) static struct spi_driver ams369fg06_driver = { .driver = { .name = "ams369fg06", - .owner = THIS_MODULE, .pm = &ams369fg06_pm_ops, }, .probe = ams369fg06_probe, diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c index d7c37a8ccd1f..d7c239ea3d09 100644 --- a/drivers/video/backlight/corgi_lcd.c +++ b/drivers/video/backlight/corgi_lcd.c @@ -598,7 +598,6 @@ static int corgi_lcd_remove(struct spi_device *spi) static struct spi_driver corgi_lcd_driver = { .driver = { .name = "corgi-lcd", - .owner = THIS_MODULE, .pm = &corgi_lcd_pm_ops, }, .probe = corgi_lcd_probe, diff --git a/drivers/video/backlight/ili922x.c b/drivers/video/backlight/ili922x.c index e7f0890cc211..a9e9cef20ed6 100644 --- a/drivers/video/backlight/ili922x.c +++ b/drivers/video/backlight/ili922x.c @@ -536,7 +536,6 @@ static int ili922x_remove(struct spi_device *spi) static struct spi_driver ili922x_driver = { .driver = { .name = "ili922x", - .owner = THIS_MODULE, }, .probe = ili922x_probe, .remove = ili922x_remove, diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c index 5fa2649c9631..e6054e2492c5 100644 --- a/drivers/video/backlight/l4f00242t03.c +++ b/drivers/video/backlight/l4f00242t03.c @@ -255,7 +255,6 @@ static void l4f00242t03_shutdown(struct spi_device *spi) static struct spi_driver l4f00242t03_driver = { .driver = { .name = "l4f00242t03", - .owner = THIS_MODULE, }, .probe = l4f00242t03_probe, .remove = l4f00242t03_remove, diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c index f71eaf10c4eb..677f8abba27c 100644 --- a/drivers/video/backlight/ld9040.c +++ b/drivers/video/backlight/ld9040.c @@ -797,7 +797,6 @@ static void ld9040_shutdown(struct spi_device *spi) static struct spi_driver ld9040_driver = { .driver = { .name = "ld9040", - .owner = THIS_MODULE, .pm = &ld9040_pm_ops, }, .probe = ld9040_probe, diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c index 14590c54aedf..4237aaa7f269 100644 --- a/drivers/video/backlight/lms283gf05.c +++ b/drivers/video/backlight/lms283gf05.c @@ -192,7 +192,6 @@ static int lms283gf05_probe(struct spi_device *spi) static struct spi_driver lms283gf05_driver = { .driver = { .name = "lms283gf05", - .owner = THIS_MODULE, }, .probe = lms283gf05_probe, }; diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c index 7e3810308c3e..8aa3e7662496 100644 --- a/drivers/video/backlight/lms501kf03.c +++ b/drivers/video/backlight/lms501kf03.c @@ -422,7 +422,6 @@ static void lms501kf03_shutdown(struct spi_device *spi) static struct spi_driver lms501kf03_driver = { .driver = { .name = "lms501kf03", - .owner = THIS_MODULE, .pm = &lms501kf03_pm_ops, }, .probe = lms501kf03_probe, diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c index 383f550e165e..885612cc1008 100644 --- a/drivers/video/backlight/ltv350qv.c +++ b/drivers/video/backlight/ltv350qv.c @@ -295,7 +295,6 @@ static void ltv350qv_shutdown(struct spi_device *spi) static struct spi_driver ltv350qv_driver = { .driver = { .name = "ltv350qv", - .owner = THIS_MODULE, .pm = <v350qv_pm_ops, }, diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c index 28bfa127fee4..3c4a22a3063a 100644 --- a/drivers/video/backlight/s6e63m0.c +++ b/drivers/video/backlight/s6e63m0.c @@ -842,7 +842,6 @@ static void s6e63m0_shutdown(struct spi_device *spi) static struct spi_driver s6e63m0_driver = { .driver = { .name = "s6e63m0", - .owner = THIS_MODULE, .pm = &s6e63m0_pm_ops, }, .probe = s6e63m0_probe, diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c index 30afce33ef2a..eab1f842f9c0 100644 --- a/drivers/video/backlight/tdo24m.c +++ b/drivers/video/backlight/tdo24m.c @@ -437,7 +437,6 @@ static void tdo24m_shutdown(struct spi_device *spi) static struct spi_driver tdo24m_driver = { .driver = { .name = "tdo24m", - .owner = THIS_MODULE, .pm = &tdo24m_pm_ops, }, .probe = tdo24m_probe, diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c index f08d641ccd01..6a41ea92737a 100644 --- a/drivers/video/backlight/tosa_lcd.c +++ b/drivers/video/backlight/tosa_lcd.c @@ -263,7 +263,6 @@ static SIMPLE_DEV_PM_OPS(tosa_lcd_pm_ops, tosa_lcd_suspend, tosa_lcd_resume); static struct spi_driver tosa_lcd_driver = { .driver = { .name = "tosa-lcd", - .owner = THIS_MODULE, .pm = &tosa_lcd_pm_ops, }, .probe = tosa_lcd_probe, diff --git a/drivers/video/backlight/vgg2432a4.c b/drivers/video/backlight/vgg2432a4.c index d538947a67d3..242a9948f57f 100644 --- a/drivers/video/backlight/vgg2432a4.c +++ b/drivers/video/backlight/vgg2432a4.c @@ -251,7 +251,6 @@ static SIMPLE_DEV_PM_OPS(vgg2432a4_pm_ops, vgg2432a4_suspend, vgg2432a4_resume); static struct spi_driver vgg2432a4_driver = { .driver = { .name = "VGG2432A4", - .owner = THIS_MODULE, .pm = &vgg2432a4_pm_ops, }, .probe = vgg2432a4_probe, diff --git a/drivers/video/fbdev/mmp/panel/tpo_tj032md01bw.c b/drivers/video/fbdev/mmp/panel/tpo_tj032md01bw.c index 998978b08f5e..f7e85d1c9f9c 100644 --- a/drivers/video/fbdev/mmp/panel/tpo_tj032md01bw.c +++ b/drivers/video/fbdev/mmp/panel/tpo_tj032md01bw.c @@ -175,7 +175,6 @@ static int tpohvga_probe(struct spi_device *spi) static struct spi_driver panel_tpohvga_driver = { .driver = { .name = "tpo-hvga", - .owner = THIS_MODULE, }, .probe = tpohvga_probe, }; diff --git a/drivers/video/fbdev/omap/lcd_mipid.c b/drivers/video/fbdev/omap/lcd_mipid.c index 803fee618d57..0e4cee9a8d79 100644 --- a/drivers/video/fbdev/omap/lcd_mipid.c +++ b/drivers/video/fbdev/omap/lcd_mipid.c @@ -603,7 +603,6 @@ static int mipid_spi_remove(struct spi_device *spi) static struct spi_driver mipid_spi_driver = { .driver = { .name = MIPID_MODULE_NAME, - .owner = THIS_MODULE, }, .probe = mipid_spi_probe, .remove = mipid_spi_remove, diff --git a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c index 6a1b6a89a928..18eb60e9c9ec 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-lgphilips-lb035q02.c @@ -391,7 +391,6 @@ static struct spi_driver lb035q02_spi_driver = { .remove = lb035q02_panel_spi_remove, .driver = { .name = "panel_lgphilips_lb035q02", - .owner = THIS_MODULE, .of_match_table = lb035q02_of_match, .suppress_bind_attrs = true, }, diff --git a/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c b/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c index ccf3f4f3c703..8a928c9a2fc9 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-nec-nl8048hl11.c @@ -421,7 +421,6 @@ MODULE_DEVICE_TABLE(of, nec_8048_of_match); static struct spi_driver nec_8048_driver = { .driver = { .name = "panel-nec-nl8048hl11", - .owner = THIS_MODULE, .pm = NEC_8048_PM_OPS, .of_match_table = nec_8048_of_match, .suppress_bind_attrs = true, diff --git a/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c index c581231c74a5..31efcca801bd 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-sony-acx565akm.c @@ -903,7 +903,6 @@ MODULE_DEVICE_TABLE(of, acx565akm_of_match); static struct spi_driver acx565akm_driver = { .driver = { .name = "acx565akm", - .owner = THIS_MODULE, .of_match_table = acx565akm_of_match, .suppress_bind_attrs = true, }, diff --git a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c index 9edc51133c59..4d657f3ab679 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td028ttec1.c @@ -498,7 +498,6 @@ static struct spi_driver td028ttec1_spi_driver = { .driver = { .name = "panel-tpo-td028ttec1", - .owner = THIS_MODULE, .of_match_table = td028ttec1_of_match, .suppress_bind_attrs = true, }, diff --git a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c index 79e4a029aab9..68e3b68a2920 100644 --- a/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c +++ b/drivers/video/fbdev/omap2/displays-new/panel-tpo-td043mtea1.c @@ -670,7 +670,6 @@ MODULE_DEVICE_TABLE(of, tpo_td043_of_match); static struct spi_driver tpo_td043_spi_driver = { .driver = { .name = "panel-tpo-td043mtea1", - .owner = THIS_MODULE, .pm = &tpo_td043_spi_pm, .of_match_table = tpo_td043_of_match, .suppress_bind_attrs = true, diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 92273776bce6..c2f2574ff61c 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -198,6 +198,7 @@ enum pxa_ssp_type { LPSS_LPT_SSP, /* Keep LPSS types sorted with lpss_platforms[] */ LPSS_BYT_SSP, LPSS_SPT_SSP, + LPSS_BXT_SSP, }; struct ssp_device { diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 6b00f18f5e6b..cce80e6dc7d1 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -51,6 +51,8 @@ extern struct bus_type spi_bus_type; * @bytes_tx: number of bytes sent to device * @bytes_rx: number of bytes received from device * + * @transfer_bytes_histo: + * transfer bytes histogramm */ struct spi_statistics { spinlock_t lock; /* lock for the whole structure */ @@ -68,6 +70,8 @@ struct spi_statistics { unsigned long long bytes_rx; unsigned long long bytes_tx; +#define SPI_STATISTICS_HISTO_SIZE 17 + unsigned long transfer_bytes_histo[SPI_STATISTICS_HISTO_SIZE]; }; void spi_statistics_add_transfer_stats(struct spi_statistics *stats, @@ -250,7 +254,7 @@ static inline struct spi_driver *to_spi_driver(struct device_driver *drv) return drv ? container_of(drv, struct spi_driver, driver) : NULL; } -extern int spi_register_driver(struct spi_driver *sdrv); +extern int __spi_register_driver(struct module *owner, struct spi_driver *sdrv); /** * spi_unregister_driver - reverse effect of spi_register_driver @@ -263,6 +267,10 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) driver_unregister(&sdrv->driver); } +/* use a define to avoid include chaining to get THIS_MODULE */ +#define spi_register_driver(driver) \ + __spi_register_driver(THIS_MODULE, driver) + /** * module_spi_driver() - Helper macro for registering a SPI driver * @__spi_driver: spi_driver struct @@ -843,8 +851,10 @@ extern int spi_bus_unlock(struct spi_master *master); * @len: data buffer size * Context: can sleep * - * This writes the buffer and returns zero or a negative error code. + * This function writes the buffer @buf. * Callable only from contexts that can sleep. + * + * Return: zero on success, else a negative error code. */ static inline int spi_write(struct spi_device *spi, const void *buf, size_t len) @@ -867,8 +877,10 @@ spi_write(struct spi_device *spi, const void *buf, size_t len) * @len: data buffer size * Context: can sleep * - * This reads the buffer and returns zero or a negative error code. + * This function reads the buffer @buf. * Callable only from contexts that can sleep. + * + * Return: zero on success, else a negative error code. */ static inline int spi_read(struct spi_device *spi, void *buf, size_t len) @@ -895,7 +907,7 @@ spi_read(struct spi_device *spi, void *buf, size_t len) * * For more specific semantics see spi_sync(). * - * It returns zero on success, else a negative error code. + * Return: Return: zero on success, else a negative error code. */ static inline int spi_sync_transfer(struct spi_device *spi, struct spi_transfer *xfers, @@ -919,9 +931,10 @@ extern int spi_write_then_read(struct spi_device *spi, * @cmd: command to be written before data is read back * Context: can sleep * - * This returns the (unsigned) eight bit number returned by the - * device, or else a negative error code. Callable only from - * contexts that can sleep. + * Callable only from contexts that can sleep. + * + * Return: the (unsigned) eight bit number returned by the + * device, or else a negative error code. */ static inline ssize_t spi_w8r8(struct spi_device *spi, u8 cmd) { @@ -940,12 +953,13 @@ static inline ssize_t spi_w8r8(struct spi_device *spi, u8 cmd) * @cmd: command to be written before data is read back * Context: can sleep * - * This returns the (unsigned) sixteen bit number returned by the - * device, or else a negative error code. Callable only from - * contexts that can sleep. - * * The number is returned in wire-order, which is at least sometimes * big-endian. + * + * Callable only from contexts that can sleep. + * + * Return: the (unsigned) sixteen bit number returned by the + * device, or else a negative error code. */ static inline ssize_t spi_w8r16(struct spi_device *spi, u8 cmd) { @@ -964,13 +978,13 @@ static inline ssize_t spi_w8r16(struct spi_device *spi, u8 cmd) * @cmd: command to be written before data is read back * Context: can sleep * - * This returns the (unsigned) sixteen bit number returned by the device in cpu - * endianness, or else a negative error code. Callable only from contexts that - * can sleep. - * * This function is similar to spi_w8r16, with the exception that it will * convert the read 16 bit data word from big-endian to native endianness. * + * Callable only from contexts that can sleep. + * + * Return: the (unsigned) sixteen bit number returned by the device in cpu + * endianness, or else a negative error code. */ static inline ssize_t spi_w8r16be(struct spi_device *spi, u8 cmd) diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h index 85578d4be034..154788ed218c 100644 --- a/include/linux/spi/spi_bitbang.h +++ b/include/linux/spi/spi_bitbang.h @@ -4,7 +4,7 @@ #include <linux/workqueue.h> struct spi_bitbang { - spinlock_t lock; + struct mutex lock; u8 busy; u8 use_dma; u8 flags; /* extra spi->mode support */ diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c index 95f0bec26a1b..e2ce6c4d7ece 100644 --- a/sound/soc/codecs/ad1836.c +++ b/sound/soc/codecs/ad1836.c @@ -404,7 +404,6 @@ MODULE_DEVICE_TABLE(spi, ad1836_ids); static struct spi_driver ad1836_spi_driver = { .driver = { .name = "ad1836", - .owner = THIS_MODULE, }, .probe = ad1836_spi_probe, .remove = ad1836_spi_remove, diff --git a/sound/soc/codecs/ad193x-spi.c b/sound/soc/codecs/ad193x-spi.c index 390cef9b9dc2..8199a3de0024 100644 --- a/sound/soc/codecs/ad193x-spi.c +++ b/sound/soc/codecs/ad193x-spi.c @@ -36,7 +36,6 @@ static int ad193x_spi_remove(struct spi_device *spi) static struct spi_driver ad193x_spi_driver = { .driver = { .name = "ad193x", - .owner = THIS_MODULE, }, .probe = ad193x_spi_probe, .remove = ad193x_spi_remove, diff --git a/sound/soc/codecs/adau1761-spi.c b/sound/soc/codecs/adau1761-spi.c index cce2f11f1ffb..8bc1fbd25fcc 100644 --- a/sound/soc/codecs/adau1761-spi.c +++ b/sound/soc/codecs/adau1761-spi.c @@ -64,7 +64,6 @@ MODULE_DEVICE_TABLE(spi, adau1761_spi_id); static struct spi_driver adau1761_spi_driver = { .driver = { .name = "adau1761", - .owner = THIS_MODULE, }, .probe = adau1761_spi_probe, .remove = adau1761_spi_remove, diff --git a/sound/soc/codecs/adau1781-spi.c b/sound/soc/codecs/adau1781-spi.c index 194686716bbe..33a73ff78de4 100644 --- a/sound/soc/codecs/adau1781-spi.c +++ b/sound/soc/codecs/adau1781-spi.c @@ -62,7 +62,6 @@ MODULE_DEVICE_TABLE(spi, adau1781_spi_id); static struct spi_driver adau1781_spi_driver = { .driver = { .name = "adau1781", - .owner = THIS_MODULE, }, .probe = adau1781_spi_probe, .remove = adau1781_spi_remove, diff --git a/sound/soc/codecs/adau1977-spi.c b/sound/soc/codecs/adau1977-spi.c index b05cf5da3a94..0b46d88b481c 100644 --- a/sound/soc/codecs/adau1977-spi.c +++ b/sound/soc/codecs/adau1977-spi.c @@ -63,7 +63,6 @@ MODULE_DEVICE_TABLE(spi, adau1977_spi_ids); static struct spi_driver adau1977_spi_driver = { .driver = { .name = "adau1977", - .owner = THIS_MODULE, }, .probe = adau1977_spi_probe, .remove = adau1977_spi_remove, diff --git a/sound/soc/codecs/adav801.c b/sound/soc/codecs/adav801.c index 790fce33ab10..055f1228c2b4 100644 --- a/sound/soc/codecs/adav801.c +++ b/sound/soc/codecs/adav801.c @@ -39,7 +39,6 @@ static int adav80x_spi_remove(struct spi_device *spi) static struct spi_driver adav80x_spi_driver = { .driver = { .name = "adav801", - .owner = THIS_MODULE, }, .probe = adav80x_spi_probe, .remove = adav80x_spi_remove, diff --git a/sound/soc/codecs/ak4104.c b/sound/soc/codecs/ak4104.c index 1fd7f72b2a62..595d02d7602c 100644 --- a/sound/soc/codecs/ak4104.c +++ b/sound/soc/codecs/ak4104.c @@ -344,7 +344,6 @@ MODULE_DEVICE_TABLE(spi, ak4104_id_table); static struct spi_driver ak4104_spi_driver = { .driver = { .name = "ak4104", - .owner = THIS_MODULE, .of_match_table = ak4104_of_match, }, .id_table = ak4104_id_table, diff --git a/sound/soc/codecs/cs4271-spi.c b/sound/soc/codecs/cs4271-spi.c index acd49d86e706..1ff5f520196a 100644 --- a/sound/soc/codecs/cs4271-spi.c +++ b/sound/soc/codecs/cs4271-spi.c @@ -42,7 +42,6 @@ static int cs4271_spi_remove(struct spi_device *spi) static struct spi_driver cs4271_spi_driver = { .driver = { .name = "cs4271", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(cs4271_dt_ids), }, .probe = cs4271_spi_probe, diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c index 7dc52fe67c80..af23a61b7b28 100644 --- a/sound/soc/codecs/da7210.c +++ b/sound/soc/codecs/da7210.c @@ -1339,7 +1339,6 @@ static int da7210_spi_remove(struct spi_device *spi) static struct spi_driver da7210_spi_driver = { .driver = { .name = "da7210", - .owner = THIS_MODULE, }, .probe = da7210_spi_probe, .remove = da7210_spi_remove diff --git a/sound/soc/codecs/pcm1792a.c b/sound/soc/codecs/pcm1792a.c index 57b0c94a710b..08bb4863e96f 100644 --- a/sound/soc/codecs/pcm1792a.c +++ b/sound/soc/codecs/pcm1792a.c @@ -257,7 +257,6 @@ MODULE_DEVICE_TABLE(spi, pcm1792a_spi_ids); static struct spi_driver pcm1792a_codec_driver = { .driver = { .name = "pcm1792a", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(pcm1792a_of_match), }, .id_table = pcm1792a_spi_ids, diff --git a/sound/soc/codecs/pcm512x-spi.c b/sound/soc/codecs/pcm512x-spi.c index 7b64a9cef704..712ed6598c48 100644 --- a/sound/soc/codecs/pcm512x-spi.c +++ b/sound/soc/codecs/pcm512x-spi.c @@ -64,7 +64,6 @@ static struct spi_driver pcm512x_spi_driver = { .id_table = pcm512x_spi_id, .driver = { .name = "pcm512x", - .owner = THIS_MODULE, .of_match_table = pcm512x_of_match, .pm = &pcm512x_pm_ops, }, diff --git a/sound/soc/codecs/rt5677-spi.c b/sound/soc/codecs/rt5677-spi.c index 3505aafbade4..91879ea95415 100644 --- a/sound/soc/codecs/rt5677-spi.c +++ b/sound/soc/codecs/rt5677-spi.c @@ -232,7 +232,6 @@ static int rt5677_spi_probe(struct spi_device *spi) static struct spi_driver rt5677_spi_driver = { .driver = { .name = "rt5677", - .owner = THIS_MODULE, }, .probe = rt5677_spi_probe, }; diff --git a/sound/soc/codecs/ssm2602-spi.c b/sound/soc/codecs/ssm2602-spi.c index b5df14fbe3ad..842f373045c6 100644 --- a/sound/soc/codecs/ssm2602-spi.c +++ b/sound/soc/codecs/ssm2602-spi.c @@ -35,7 +35,6 @@ MODULE_DEVICE_TABLE(of, ssm2602_of_match); static struct spi_driver ssm2602_spi_driver = { .driver = { .name = "ssm2602", - .owner = THIS_MODULE, .of_match_table = ssm2602_of_match, }, .probe = ssm2602_spi_probe, diff --git a/sound/soc/codecs/tlv320aic23-spi.c b/sound/soc/codecs/tlv320aic23-spi.c index 3b387e41d75d..f801ae051658 100644 --- a/sound/soc/codecs/tlv320aic23-spi.c +++ b/sound/soc/codecs/tlv320aic23-spi.c @@ -43,7 +43,6 @@ static int aic23_spi_remove(struct spi_device *spi) static struct spi_driver aic23_spi = { .driver = { .name = "tlv320aic23", - .owner = THIS_MODULE, }, .probe = aic23_spi_probe, .remove = aic23_spi_remove, diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c index 620ab9ea1ef0..2c904d7150ad 100644 --- a/sound/soc/codecs/tlv320aic26.c +++ b/sound/soc/codecs/tlv320aic26.c @@ -373,7 +373,6 @@ static int aic26_spi_remove(struct spi_device *spi) static struct spi_driver aic26_spi = { .driver = { .name = "tlv320aic26-codec", - .owner = THIS_MODULE, }, .probe = aic26_spi_probe, .remove = aic26_spi_remove, diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c index 581ec1502228..e3c34bdc2772 100644 --- a/sound/soc/codecs/wm0010.c +++ b/sound/soc/codecs/wm0010.c @@ -998,7 +998,6 @@ static int wm0010_spi_remove(struct spi_device *spi) static struct spi_driver wm0010_spi_driver = { .driver = { .name = "wm0010", - .owner = THIS_MODULE, }, .probe = wm0010_spi_probe, .remove = wm0010_spi_remove, diff --git a/sound/soc/codecs/wm8510.c b/sound/soc/codecs/wm8510.c index b098a83a44d8..99e40e629cca 100644 --- a/sound/soc/codecs/wm8510.c +++ b/sound/soc/codecs/wm8510.c @@ -644,7 +644,6 @@ static int wm8510_spi_remove(struct spi_device *spi) static struct spi_driver wm8510_spi_driver = { .driver = { .name = "wm8510", - .owner = THIS_MODULE, .of_match_table = wm8510_of_match, }, .probe = wm8510_spi_probe, diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c index 44b9e0ae7451..c759ec068e97 100644 --- a/sound/soc/codecs/wm8711.c +++ b/sound/soc/codecs/wm8711.c @@ -431,7 +431,6 @@ static int wm8711_spi_remove(struct spi_device *spi) static struct spi_driver wm8711_spi_driver = { .driver = { .name = "wm8711", - .owner = THIS_MODULE, .of_match_table = wm8711_of_match, }, .probe = wm8711_spi_probe, diff --git a/sound/soc/codecs/wm8728.c b/sound/soc/codecs/wm8728.c index cd7b02413ccf..1564e6926527 100644 --- a/sound/soc/codecs/wm8728.c +++ b/sound/soc/codecs/wm8728.c @@ -272,7 +272,6 @@ static int wm8728_spi_remove(struct spi_device *spi) static struct spi_driver wm8728_spi_driver = { .driver = { .name = "wm8728", - .owner = THIS_MODULE, .of_match_table = wm8728_of_match, }, .probe = wm8728_spi_probe, diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c index ace8645245a0..15bd547e3c84 100644 --- a/sound/soc/codecs/wm8731.c +++ b/sound/soc/codecs/wm8731.c @@ -718,7 +718,6 @@ static int wm8731_spi_remove(struct spi_device *spi) static struct spi_driver wm8731_spi_driver = { .driver = { .name = "wm8731", - .owner = THIS_MODULE, .of_match_table = wm8731_of_match, }, .probe = wm8731_spi_probe, diff --git a/sound/soc/codecs/wm8737.c b/sound/soc/codecs/wm8737.c index e4a03d98aed4..e7807601e675 100644 --- a/sound/soc/codecs/wm8737.c +++ b/sound/soc/codecs/wm8737.c @@ -707,7 +707,6 @@ static int wm8737_spi_remove(struct spi_device *spi) static struct spi_driver wm8737_spi_driver = { .driver = { .name = "wm8737", - .owner = THIS_MODULE, .of_match_table = wm8737_of_match, }, .probe = wm8737_spi_probe, diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index de42c0388772..36ef91fe0511 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -657,7 +657,6 @@ static int wm8741_spi_remove(struct spi_device *spi) static struct spi_driver wm8741_spi_driver = { .driver = { .name = "wm8741", - .owner = THIS_MODULE, .of_match_table = wm8741_of_match, }, .probe = wm8741_spi_probe, diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c index 873933a7966f..bd9dcd2161bc 100644 --- a/sound/soc/codecs/wm8750.c +++ b/sound/soc/codecs/wm8750.c @@ -777,7 +777,6 @@ MODULE_DEVICE_TABLE(spi, wm8750_spi_ids); static struct spi_driver wm8750_spi_driver = { .driver = { .name = "wm8750", - .owner = THIS_MODULE, .of_match_table = wm8750_of_match, }, .id_table = wm8750_spi_ids, diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c index a801c6d75436..61299ca372ff 100644 --- a/sound/soc/codecs/wm8753.c +++ b/sound/soc/codecs/wm8753.c @@ -1549,7 +1549,6 @@ static int wm8753_spi_remove(struct spi_device *spi) static struct spi_driver wm8753_spi_driver = { .driver = { .name = "wm8753", - .owner = THIS_MODULE, .of_match_table = wm8753_of_match, }, .probe = wm8753_spi_probe, diff --git a/sound/soc/codecs/wm8770.c b/sound/soc/codecs/wm8770.c index 66c1f151071d..df6178464b00 100644 --- a/sound/soc/codecs/wm8770.c +++ b/sound/soc/codecs/wm8770.c @@ -703,7 +703,6 @@ static int wm8770_spi_remove(struct spi_device *spi) static struct spi_driver wm8770_spi_driver = { .driver = { .name = "wm8770", - .owner = THIS_MODULE, .of_match_table = wm8770_of_match, }, .probe = wm8770_spi_probe, diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c index 183c9a4966c5..5af44f9a8cf2 100644 --- a/sound/soc/codecs/wm8776.c +++ b/sound/soc/codecs/wm8776.c @@ -488,7 +488,6 @@ static int wm8776_spi_remove(struct spi_device *spi) static struct spi_driver wm8776_spi_driver = { .driver = { .name = "wm8776", - .owner = THIS_MODULE, .of_match_table = wm8776_of_match, }, .probe = wm8776_spi_probe, diff --git a/sound/soc/codecs/wm8804-spi.c b/sound/soc/codecs/wm8804-spi.c index 407a3cf391e5..9998c78a2325 100644 --- a/sound/soc/codecs/wm8804-spi.c +++ b/sound/soc/codecs/wm8804-spi.c @@ -42,7 +42,6 @@ MODULE_DEVICE_TABLE(of, wm8804_of_match); static struct spi_driver wm8804_spi_driver = { .driver = { .name = "wm8804", - .owner = THIS_MODULE, .pm = &wm8804_pm, .of_match_table = wm8804_of_match, }, diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c index 98900aa66dc3..5d8dca88d612 100644 --- a/sound/soc/codecs/wm8900.c +++ b/sound/soc/codecs/wm8900.c @@ -1266,7 +1266,6 @@ static int wm8900_spi_remove(struct spi_device *spi) static struct spi_driver wm8900_spi_driver = { .driver = { .name = "wm8900", - .owner = THIS_MODULE, }, .probe = wm8900_spi_probe, .remove = wm8900_spi_remove, diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c index f3193fb751cc..7350ff654bbf 100644 --- a/sound/soc/codecs/wm8983.c +++ b/sound/soc/codecs/wm8983.c @@ -1033,7 +1033,6 @@ static int wm8983_spi_remove(struct spi_device *spi) static struct spi_driver wm8983_spi_driver = { .driver = { .name = "wm8983", - .owner = THIS_MODULE, }, .probe = wm8983_spi_probe, .remove = wm8983_spi_remove diff --git a/sound/soc/codecs/wm8985.c b/sound/soc/codecs/wm8985.c index 9c3c1517a4f3..9918152a03c7 100644 --- a/sound/soc/codecs/wm8985.c +++ b/sound/soc/codecs/wm8985.c @@ -1096,7 +1096,6 @@ static int wm8985_spi_remove(struct spi_device *spi) static struct spi_driver wm8985_spi_driver = { .driver = { .name = "wm8985", - .owner = THIS_MODULE, }, .probe = wm8985_spi_probe, .remove = wm8985_spi_remove diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c index c88ce99ce9e1..895721a256f0 100644 --- a/sound/soc/codecs/wm8988.c +++ b/sound/soc/codecs/wm8988.c @@ -871,7 +871,6 @@ static int wm8988_spi_remove(struct spi_device *spi) static struct spi_driver wm8988_spi_driver = { .driver = { .name = "wm8988", - .owner = THIS_MODULE, }, .probe = wm8988_spi_probe, .remove = wm8988_spi_remove, diff --git a/sound/soc/codecs/wm8995.c b/sound/soc/codecs/wm8995.c index eda52a96c1fa..24500bafb0a8 100644 --- a/sound/soc/codecs/wm8995.c +++ b/sound/soc/codecs/wm8995.c @@ -2246,7 +2246,6 @@ static int wm8995_spi_remove(struct spi_device *spi) static struct spi_driver wm8995_spi_driver = { .driver = { .name = "wm8995", - .owner = THIS_MODULE, }, .probe = wm8995_spi_probe, .remove = wm8995_spi_remove |