diff options
Diffstat (limited to 'drivers/gpio/gpio-sx150x.c')
| -rw-r--r-- | drivers/gpio/gpio-sx150x.c | 157 |
1 files changed, 112 insertions, 45 deletions
diff --git a/drivers/gpio/gpio-sx150x.c b/drivers/gpio/gpio-sx150x.c index 0bc61c2bd079..b32fb38ac5c9 100644 --- a/drivers/gpio/gpio-sx150x.c +++ b/drivers/gpio/gpio-sx150x.c @@ -26,20 +26,43 @@ #define NO_UPDATE_PENDING -1 +/* The chip models of sx150x */ +#define SX150X_456 0 +#define SX150X_789 1 + +struct sx150x_456_pri { + u8 reg_pld_mode; + u8 reg_pld_table0; + u8 reg_pld_table1; + u8 reg_pld_table2; + u8 reg_pld_table3; + u8 reg_pld_table4; + u8 reg_advance; +}; + +struct sx150x_789_pri { + u8 reg_drain; + u8 reg_polarity; + u8 reg_clock; + u8 reg_misc; + u8 reg_reset; + u8 ngpios; +}; + struct sx150x_device_data { + u8 model; u8 reg_pullup; u8 reg_pulldn; - u8 reg_drain; - u8 reg_polarity; u8 reg_dir; u8 reg_data; u8 reg_irq_mask; u8 reg_irq_src; u8 reg_sense; - u8 reg_clock; - u8 reg_misc; - u8 reg_reset; u8 ngpios; + union { + struct sx150x_456_pri x456; + struct sx150x_789_pri x789; + } pri; }; struct sx150x_chip { @@ -59,40 +82,67 @@ struct sx150x_chip { static const struct sx150x_device_data sx150x_devices[] = { [0] = { /* sx1508q */ - .reg_pullup = 0x03, - .reg_pulldn = 0x04, - .reg_drain = 0x05, - .reg_polarity = 0x06, - .reg_dir = 0x07, - .reg_data = 0x08, - .reg_irq_mask = 0x09, - .reg_irq_src = 0x0c, - .reg_sense = 0x0b, - .reg_clock = 0x0f, - .reg_misc = 0x10, - .reg_reset = 0x7d, - .ngpios = 8 + .model = SX150X_789, + .reg_pullup = 0x03, + .reg_pulldn = 0x04, + .reg_dir = 0x07, + .reg_data = 0x08, + .reg_irq_mask = 0x09, + .reg_irq_src = 0x0c, + .reg_sense = 0x0b, + .pri.x789 = { + .reg_drain = 0x05, + .reg_polarity = 0x06, + .reg_clock = 0x0f, + .reg_misc = 0x10, + .reg_reset = 0x7d, + }, + .ngpios = 8, }, [1] = { /* sx1509q */ - .reg_pullup = 0x07, - .reg_pulldn = 0x09, - .reg_drain = 0x0b, - .reg_polarity = 0x0d, - .reg_dir = 0x0f, - .reg_data = 0x11, - .reg_irq_mask = 0x13, - .reg_irq_src = 0x19, - .reg_sense = 0x17, - .reg_clock = 0x1e, - .reg_misc = 0x1f, - .reg_reset = 0x7d, - .ngpios = 16 + .model = SX150X_789, + .reg_pullup = 0x07, + .reg_pulldn = 0x09, + .reg_dir = 0x0f, + .reg_data = 0x11, + .reg_irq_mask = 0x13, + .reg_irq_src = 0x19, + .reg_sense = 0x17, + .pri.x789 = { + .reg_drain = 0x0b, + .reg_polarity = 0x0d, + .reg_clock = 0x1e, + .reg_misc = 0x1f, + .reg_reset = 0x7d, + }, + .ngpios = 16 + }, + [2] = { /* sx1506q */ + .model = SX150X_456, + .reg_pullup = 0x05, + .reg_pulldn = 0x07, + .reg_dir = 0x03, + .reg_data = 0x01, + .reg_irq_mask = 0x09, + .reg_irq_src = 0x0f, + .reg_sense = 0x0d, + .pri.x456 = { + .reg_pld_mode = 0x21, + .reg_pld_table0 = 0x23, + .reg_pld_table1 = 0x25, + .reg_pld_table2 = 0x27, + .reg_pld_table3 = 0x29, + .reg_pld_table4 = 0x2b, + .reg_advance = 0xad, + }, + .ngpios = 16 }, }; static const struct i2c_device_id sx150x_id[] = { {"sx1508q", 0}, {"sx1509q", 1}, + {"sx1506q", 2}, {} }; MODULE_DEVICE_TABLE(i2c, sx150x_id); @@ -191,7 +241,7 @@ static int sx150x_get_io(struct sx150x_chip *chip, unsigned offset) static void sx150x_set_oscio(struct sx150x_chip *chip, int val) { sx150x_i2c_write(chip->client, - chip->dev_cfg->reg_clock, + chip->dev_cfg->pri.x789.reg_clock, (val ? 0x1f : 0x10)); } @@ -455,13 +505,13 @@ static int sx150x_reset(struct sx150x_chip *chip) int err; err = i2c_smbus_write_byte_data(chip->client, - chip->dev_cfg->reg_reset, + chip->dev_cfg->pri.x789.reg_reset, 0x12); if (err < 0) return err; err = i2c_smbus_write_byte_data(chip->client, - chip->dev_cfg->reg_reset, + chip->dev_cfg->pri.x789.reg_reset, 0x34); return err; } @@ -477,9 +527,14 @@ static int sx150x_init_hw(struct sx150x_chip *chip, return err; } - err = sx150x_i2c_write(chip->client, - chip->dev_cfg->reg_misc, - 0x01); + if (chip->dev_cfg->model == SX150X_789) + err = sx150x_i2c_write(chip->client, + chip->dev_cfg->pri.x789.reg_misc, + 0x01); + else + err = sx150x_i2c_write(chip->client, + chip->dev_cfg->pri.x456.reg_advance, + 0x04); if (err < 0) return err; @@ -493,15 +548,27 @@ static int sx150x_init_hw(struct sx150x_chip *chip, if (err < 0) return err; - err = sx150x_init_io(chip, chip->dev_cfg->reg_drain, - pdata->io_open_drain_ena); - if (err < 0) - return err; + if (chip->dev_cfg->model == SX150X_789) { + err = sx150x_init_io(chip, + chip->dev_cfg->pri.x789.reg_drain, + pdata->io_open_drain_ena); + if (err < 0) + return err; + + err = sx150x_init_io(chip, + chip->dev_cfg->pri.x789.reg_polarity, + pdata->io_polarity); + if (err < 0) + return err; + } else { + /* Set all pins to work in normal mode */ + err = sx150x_init_io(chip, + chip->dev_cfg->pri.x456.reg_pld_mode, + 0); + if (err < 0) + return err; + } - err = sx150x_init_io(chip, chip->dev_cfg->reg_polarity, - pdata->io_polarity); - if (err < 0) - return err; if (pdata->oscio_is_gpo) sx150x_set_oscio(chip, 0); |