diff options
Diffstat (limited to 'arch/arm/mach-s3c64xx/mach-smdk6410.c')
| -rw-r--r-- | arch/arm/mach-s3c64xx/mach-smdk6410.c | 59 |
1 files changed, 50 insertions, 9 deletions
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c index e85192a86fbe..686a4f270b12 100644 --- a/arch/arm/mach-s3c64xx/mach-smdk6410.c +++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c @@ -28,6 +28,8 @@ #include <linux/delay.h> #include <linux/smsc911x.h> #include <linux/regulator/fixed.h> +#include <linux/regulator/machine.h> +#include <linux/pwm_backlight.h> #ifdef CONFIG_SMDK6410_WM1190_EV1 #include <linux/mfd/wm8350/core.h> @@ -48,6 +50,7 @@ #include <mach/hardware.h> #include <mach/regs-fb.h> #include <mach/map.h> +#include <mach/gpio-bank-f.h> #include <asm/irq.h> #include <asm/mach-types.h> @@ -118,7 +121,6 @@ static void smdk6410_lcd_power_set(struct plat_lcd_data *pd, { if (power) { gpio_direction_output(S3C64XX_GPF(13), 1); - gpio_direction_output(S3C64XX_GPF(15), 1); /* fire nRESET on power up */ gpio_direction_output(S3C64XX_GPN(5), 0); @@ -126,7 +128,6 @@ static void smdk6410_lcd_power_set(struct plat_lcd_data *pd, gpio_direction_output(S3C64XX_GPN(5), 1); msleep(1); } else { - gpio_direction_output(S3C64XX_GPF(15), 0); gpio_direction_output(S3C64XX_GPF(13), 0); } } @@ -269,6 +270,45 @@ static struct samsung_keypad_platdata smdk6410_keypad_data __initdata = { .cols = 8, }; +static int smdk6410_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(S3C64XX_GPF(15), "Backlight"); + if (ret) { + printk(KERN_ERR "failed to request GPF for PWM-OUT1\n"); + return ret; + } + + /* Configure GPIO pin with S3C64XX_GPF15_PWM_TOUT1 */ + s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2)); + + return 0; +} + +static void smdk6410_backlight_exit(struct device *dev) +{ + s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_OUTPUT); + gpio_free(S3C64XX_GPF(15)); +} + +static struct platform_pwm_backlight_data smdk6410_backlight_data = { + .pwm_id = 1, + .max_brightness = 255, + .dft_brightness = 255, + .pwm_period_ns = 78770, + .init = smdk6410_backlight_init, + .exit = smdk6410_backlight_exit, +}; + +static struct platform_device smdk6410_backlight_device = { + .name = "pwm-backlight", + .dev = { + .parent = &s3c_device_timer[1].dev, + .platform_data = &smdk6410_backlight_data, + }, +}; + static struct map_desc smdk6410_iodesc[] = {}; static struct platform_device *smdk6410_devices[] __initdata = { @@ -298,6 +338,8 @@ static struct platform_device *smdk6410_devices[] __initdata = { &s3c_device_rtc, &s3c_device_ts, &s3c_device_wdt, + &s3c_device_timer[1], + &smdk6410_backlight_device, }; #ifdef CONFIG_REGULATOR @@ -351,7 +393,7 @@ static struct regulator_init_data smdk6410_vddpll = { /* VDD_UH_MMC, LDO5 on J5 */ static struct regulator_init_data smdk6410_vdduh_mmc = { .constraints = { - .name = "PVDD_UH/PVDD_MMC", + .name = "PVDD_UH+PVDD_MMC", .always_on = 1, }, }; @@ -417,7 +459,7 @@ static struct regulator_init_data smdk6410_vddaudio = { /* S3C64xx internal logic & PLL */ static struct regulator_init_data wm8350_dcdc1_data = { .constraints = { - .name = "PVDD_INT/PVDD_PLL", + .name = "PVDD_INT+PVDD_PLL", .min_uV = 1200000, .max_uV = 1200000, .always_on = 1, @@ -452,7 +494,7 @@ static struct regulator_consumer_supply wm8350_dcdc4_consumers[] = { static struct regulator_init_data wm8350_dcdc4_data = { .constraints = { - .name = "PVDD_HI/PVDD_EXT/PVDD_SYS/PVCCM2MTV", + .name = "PVDD_HI+PVDD_EXT+PVDD_SYS+PVCCM2MTV", .min_uV = 3000000, .max_uV = 3000000, .always_on = 1, @@ -464,7 +506,7 @@ static struct regulator_init_data wm8350_dcdc4_data = { /* OTGi/1190-EV1 HPVDD & AVDD */ static struct regulator_init_data wm8350_ldo4_data = { .constraints = { - .name = "PVDD_OTGI/HPVDD/AVDD", + .name = "PVDD_OTGI+HPVDD+AVDD", .min_uV = 1200000, .max_uV = 1200000, .apply_uV = 1, @@ -552,7 +594,7 @@ static struct wm831x_backlight_pdata wm1192_backlight_pdata = { static struct regulator_init_data wm1192_dcdc3 = { .constraints = { - .name = "PVDD_MEM/PVDD_GPS", + .name = "PVDD_MEM+PVDD_GPS", .always_on = 1, }, }; @@ -563,7 +605,7 @@ static struct regulator_consumer_supply wm1192_ldo1_consumers[] = { static struct regulator_init_data wm1192_ldo1 = { .constraints = { - .name = "PVDD_LCD/PVDD_EXT", + .name = "PVDD_LCD+PVDD_EXT", .always_on = 1, }, .consumer_supplies = wm1192_ldo1_consumers, @@ -693,7 +735,6 @@ static void __init smdk6410_machine_init(void) gpio_request(S3C64XX_GPN(5), "LCD power"); gpio_request(S3C64XX_GPF(13), "LCD power"); - gpio_request(S3C64XX_GPF(15), "LCD power"); i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0)); i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1)); |