diff options
| author | Banajit Goswami <banajit.g@samsung.com> | 2011-07-20 18:45:21 +0400 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-07-20 21:10:26 +0400 |
| commit | fef469f7c28268a9bfa8b4e440fbd8055ccc68c0 (patch) | |
| tree | ba65727d853841c0a52994b848814d892d7d1c59 /arch/arm | |
| parent | 8689de73a805781ddfb1b26df28ca127a548d235 (diff) | |
| download | linux-fef469f7c28268a9bfa8b4e440fbd8055ccc68c0.tar.xz | |
ARM: EXYNOS4: Add PWM backlight support on SMDKC210
This patch adds support for LCD backlight using PWM timer for
Samsung SMDKC210 board.
Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-exynos4/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-exynos4/mach-smdkc210.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 413448f59e9b..ae433a052df6 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -110,6 +110,8 @@ config MACH_SMDKC210 select S3C_DEV_HSMMC1 select S3C_DEV_HSMMC2 select S3C_DEV_HSMMC3 + select SAMSUNG_DEV_PWM + select SAMSUNG_DEV_BACKLIGHT select EXYNOS4_DEV_PD select EXYNOS4_DEV_SYSMMU select EXYNOS4_SETUP_I2C1 diff --git a/arch/arm/mach-exynos4/mach-smdkc210.c b/arch/arm/mach-exynos4/mach-smdkc210.c index e645f7a955f0..f606ea75bf43 100644 --- a/arch/arm/mach-exynos4/mach-smdkc210.c +++ b/arch/arm/mach-exynos4/mach-smdkc210.c @@ -15,6 +15,7 @@ #include <linux/smsc911x.h> #include <linux/io.h> #include <linux/i2c.h> +#include <linux/pwm_backlight.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> @@ -27,6 +28,8 @@ #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> @@ -191,6 +194,17 @@ static void __init smdkc210_smsc911x_init(void) (0x1 << S5P_SROM_BCX__TACS__SHIFT), S5P_SROM_BC1); } +/* LCD Backlight data */ +static struct samsung_bl_gpio_info smdkc210_bl_gpio_info = { + .no = EXYNOS4_GPD0(1), + .func = S3C_GPIO_SFN(2), +}; + +static struct platform_pwm_backlight_data smdkc210_bl_data = { + .pwm_id = 1, + .pwm_period_ns = 1000, +}; + static void __init smdkc210_map_io(void) { s5p_init_io(NULL, 0, S5P_VA_CHIPID); @@ -210,6 +224,8 @@ static void __init smdkc210_machine_init(void) s3c_sdhci2_set_platdata(&smdkc210_hsmmc2_pdata); s3c_sdhci3_set_platdata(&smdkc210_hsmmc3_pdata); + samsung_bl_set(&smdkc210_bl_gpio_info, &smdkc210_bl_data); + platform_add_devices(smdkc210_devices, ARRAY_SIZE(smdkc210_devices)); } |