diff options
Diffstat (limited to 'arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c')
| -rw-r--r-- | arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c index bc89bb6..920e42a 100644 --- a/arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c +++ b/arch/arm/mach-imx/eukrea_mbimxsd-baseboard.c @@ -28,6 +28,8 @@ #include <linux/platform_device.h> #include <linux/input.h> #include <linux/i2c.h> +#include <video/platform_lcd.h> +#include <linux/backlight.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> @@ -71,10 +73,57 @@ static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = { MX51_PAD_AUD3_BB_RXD__AUD3_RXD, MX51_PAD_AUD3_BB_CK__AUD3_TXC, MX51_PAD_AUD3_BB_FS__AUD3_TXFS, + /* LCD Backlight */ + MX51_PAD_DI1_D1_CS__GPIO3_4, + /* LCD RST */ + MX51_PAD_CSI1_D9__GPIO3_13, }; #define GPIO_LED1 IMX_GPIO_NR(3, 30) #define GPIO_SWITCH1 IMX_GPIO_NR(3, 31) +#define GPIO_LCDRST IMX_GPIO_NR(3, 13) +#define GPIO_LCDBL IMX_GPIO_NR(3, 4) + +static void eukrea_mbimxsd51_lcd_power_set(struct plat_lcd_data *pd, + unsigned int power) +{ + if (power) + gpio_direction_output(GPIO_LCDRST, 1); + else + gpio_direction_output(GPIO_LCDRST, 0); +} + +static struct plat_lcd_data eukrea_mbimxsd51_lcd_power_data = { + .set_power = eukrea_mbimxsd51_lcd_power_set, +}; + +static struct platform_device eukrea_mbimxsd51_lcd_powerdev = { + .name = "platform-lcd", + .dev.platform_data = &eukrea_mbimxsd51_lcd_power_data, +}; + +static void eukrea_mbimxsd51_bl_set_intensity(int intensity) +{ + if (intensity) + gpio_direction_output(GPIO_LCDBL, 1); + else + gpio_direction_output(GPIO_LCDBL, 0); +} + +static struct generic_bl_info eukrea_mbimxsd51_bl_info = { + .name = "eukrea_mbimxsd51-bl", + .max_intensity = 0xff, + .default_intensity = 0xff, + .set_bl_intensity = eukrea_mbimxsd51_bl_set_intensity, +}; + +static struct platform_device eukrea_mbimxsd51_bl_dev = { + .name = "generic-bl", + .id = 1, + .dev = { + .platform_data = &eukrea_mbimxsd51_bl_info, + }, +}; static const struct gpio_led eukrea_mbimxsd_leds[] __initconst = { { @@ -122,6 +171,19 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = { .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE, }; +static int screen_type; + +static int __init eukrea_mbimxsd51_screen_type(char *options) +{ + if (!strcmp(options, "dvi")) + screen_type = 1; + else if (!strcmp(options, "tft")) + screen_type = 0; + + return 0; +} +__setup("screen_type=", eukrea_mbimxsd51_screen_type); + /* * system init for baseboard usage. Will be called by cpuimx51sd init. * @@ -149,6 +211,18 @@ void __init eukrea_mbimxsd51_baseboard_init(void) gpio_direction_input(GPIO_SWITCH1); gpio_free(GPIO_SWITCH1); + gpio_request(GPIO_LCDRST, "LCDRST"); + gpio_direction_output(GPIO_LCDRST, 0); + gpio_request(GPIO_LCDBL, "LCDBL"); + gpio_direction_output(GPIO_LCDBL, 0); + if (!screen_type) { + platform_device_register(&eukrea_mbimxsd51_bl_dev); + platform_device_register(&eukrea_mbimxsd51_lcd_powerdev); + } else { + gpio_free(GPIO_LCDRST); + gpio_free(GPIO_LCDBL); + } + i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices, ARRAY_SIZE(eukrea_mbimxsd_i2c_devices)); |