diff options
| author | Banajit Goswami <banajit.g@samsung.com> | 2011-07-20 23:45:21 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-07-21 02:10:21 +0900 |
| commit | 8689de73a805781ddfb1b26df28ca127a548d235 (patch) | |
| tree | e89570f43a0658fd507f78dea816593c409175b6 /arch/arm/mach-exynos4 | |
| parent | f00207b255f59ebedc5965c2ab0bd1cefae70f92 (diff) | |
ARM: EXYNOS4: Add PWM backlight support on SMDKV310
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKV310 board.
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/mach-exynos4')
| -rw-r--r-- | arch/arm/mach-exynos4/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-exynos4/mach-smdkv310.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 1435fc31c4b2..413448f59e9b 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -127,8 +127,10 @@ config MACH_SMDKV310 select S3C_DEV_HSMMC1 select S3C_DEV_HSMMC2 select S3C_DEV_HSMMC3 + select SAMSUNG_DEV_BACKLIGHT select SAMSUNG_DEV_KEYPAD select EXYNOS4_DEV_PD + select SAMSUNG_DEV_PWM select EXYNOS4_DEV_SYSMMU select EXYNOS4_SETUP_I2C1 select EXYNOS4_SETUP_KEYPAD diff --git a/arch/arm/mach-exynos4/mach-smdkv310.c b/arch/arm/mach-exynos4/mach-smdkv310.c index edd814110da8..df1107828abd 100644 --- a/arch/arm/mach-exynos4/mach-smdkv310.c +++ b/arch/arm/mach-exynos4/mach-smdkv310.c @@ -16,6 +16,7 @@ #include <linux/io.h> #include <linux/i2c.h> #include <linux/input.h> +#include <linux/pwm_backlight.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> @@ -29,6 +30,8 @@ #include <plat/sdhci.h> #include <plat/iic.h> #include <plat/pd.h> +#include <plat/gpio-cfg.h> +#include <plat/backlight.h> #include <mach/map.h> @@ -209,6 +212,17 @@ static void __init smdkv310_smsc911x_init(void) (0x1 << S5P_SROM_BCX__TACS__SHIFT), S5P_SROM_BC1); } +/* LCD Backlight data */ +static struct samsung_bl_gpio_info smdkv310_bl_gpio_info = { + .no = EXYNOS4_GPD0(1), + .func = S3C_GPIO_SFN(2), +}; + +static struct platform_pwm_backlight_data smdkv310_bl_data = { + .pwm_id = 1, + .pwm_period_ns = 1000, +}; + static void __init smdkv310_map_io(void) { s5p_init_io(NULL, 0, S5P_VA_CHIPID); @@ -230,6 +244,8 @@ static void __init smdkv310_machine_init(void) samsung_keypad_set_platdata(&smdkv310_keypad_data); + samsung_bl_set(&smdkv310_bl_gpio_info, &smdkv310_bl_data); + platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices)); } |