diff options
| -rw-r--r-- | arch/arm/mach-omap2/board-omap4panda.c | 131 |
1 files changed, 129 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index 795ffc461522..e2b912f376cc 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -40,6 +40,7 @@ #include <plat/common.h> #include <plat/usb.h> #include <plat/mmc.h> +#include <plat/panel-generic-dpi.h> #include "timer-gp.h" #include "hsmmc.h" @@ -435,6 +436,17 @@ static struct i2c_board_info __initdata omap4_panda_i2c_boardinfo[] = { .platform_data = &omap4_panda_twldata, }, }; + +/* + * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM + * is connected as I2C slave device, and can be accessed at address 0x50 + */ +static struct i2c_board_info __initdata panda_i2c_eeprom[] = { + { + I2C_BOARD_INFO("eeprom", 0x50), + }, +}; + static int __init omap4_panda_i2c_init(void) { /* @@ -444,7 +456,12 @@ static int __init omap4_panda_i2c_init(void) omap_register_i2c_bus(1, 400, omap4_panda_i2c_boardinfo, ARRAY_SIZE(omap4_panda_i2c_boardinfo)); omap_register_i2c_bus(2, 400, NULL, 0); - omap_register_i2c_bus(3, 400, NULL, 0); + /* + * Bus 3 is attached to the DVI port where devices like the pico DLP + * projector don't work reliably with 400kHz + */ + omap_register_i2c_bus(3, 100, panda_i2c_eeprom, + ARRAY_SIZE(panda_i2c_eeprom)); omap_register_i2c_bus(4, 400, NULL, 0); return 0; } @@ -464,12 +481,115 @@ static struct omap_board_mux board_mux[] __initdata = { OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP), OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP), OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP), + /* gpio 0 - TFP410 PD */ + OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3), + /* dispc2_data23 */ + OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data22 */ + OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data21 */ + OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data20 */ + OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data19 */ + OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data18 */ + OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data15 */ + OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data14 */ + OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data13 */ + OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data12 */ + OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data11 */ + OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data10 */ + OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data9 */ + OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data16 */ + OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data17 */ + OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_hsync */ + OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_pclk */ + OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_vsync */ + OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_de */ + OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data8 */ + OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data7 */ + OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data6 */ + OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data5 */ + OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data4 */ + OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data3 */ + OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data2 */ + OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data1 */ + OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), + /* dispc2_data0 */ + OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5), { .reg_offset = OMAP_MUX_TERMINATOR }, }; #else #define board_mux NULL #endif +/* Display DVI */ +#define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0 + +static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev) +{ + gpio_set_value(dssdev->reset_gpio, 1); + return 0; +} + +static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev) +{ + gpio_set_value(dssdev->reset_gpio, 0); +} + +/* Using generic display panel */ +static struct panel_generic_dpi_data omap4_dvi_panel = { + .name = "generic", + .platform_enable = omap4_panda_enable_dvi, + .platform_disable = omap4_panda_disable_dvi, +}; + +struct omap_dss_device omap4_panda_dvi_device = { + .type = OMAP_DISPLAY_TYPE_DPI, + .name = "dvi", + .driver_name = "generic_dpi_panel", + .data = &omap4_dvi_panel, + .phy.dpi.data_lines = 24, + .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO, + .channel = OMAP_DSS_CHANNEL_LCD2, +}; + +int __init omap4_panda_dvi_init(void) +{ + int r; + + /* Requesting TFP410 DVI GPIO and disabling it, at bootup */ + r = gpio_request_one(omap4_panda_dvi_device.reset_gpio, + GPIOF_OUT_INIT_LOW, "DVI PD"); + if (r) + pr_err("Failed to get DVI powerdown GPIO\n"); + + return r; +} + + static void omap4_panda_hdmi_mux_init(void) { /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */ @@ -525,17 +645,24 @@ static struct omap_dss_device omap4_panda_hdmi_device = { }; static struct omap_dss_device *omap4_panda_dss_devices[] = { + &omap4_panda_dvi_device, &omap4_panda_hdmi_device, }; static struct omap_dss_board_info omap4_panda_dss_data = { .num_devices = ARRAY_SIZE(omap4_panda_dss_devices), .devices = omap4_panda_dss_devices, - .default_device = &omap4_panda_hdmi_device, + .default_device = &omap4_panda_dvi_device, }; void omap4_panda_display_init(void) { + int r; + + r = omap4_panda_dvi_init(); + if (r) + pr_err("error initializing panda DVI\n"); + omap4_panda_hdmi_mux_init(); omap_display_init(&omap4_panda_dss_data); } |