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| author | Giridhar Maruthy <giridhar.maruthy@linaro.org> | 2011-08-31 15:58:52 +0900 |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2011-10-03 08:42:22 +0900 |
| commit | 9edff0f79f5b98e6abfabfa27b31d155e3c994e1 (patch) | |
| tree | aab66bee21154b8bc45174526769c4529d6acc86 /arch/arm/mach-exynos4 | |
| parent | 6f8eb324a395da5bd0c0b113944f2906272e14bd (diff) | |
| download | linux-9edff0f79f5b98e6abfabfa27b31d155e3c994e1.tar.gz linux-9edff0f79f5b98e6abfabfa27b31d155e3c994e1.tar.bz2 linux-9edff0f79f5b98e6abfabfa27b31d155e3c994e1.zip | |
ARM: EXYNOS4: Add PWM backlight support on ORIGEN
This patch adds support for LCD backlight using PWM timer
on ORIGEN board.
Signed-off-by: Giridhar Maruthy <giridhar.maruthy@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
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-origen.c | 16 |
2 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 9c920b2acc36..86cf4fd47b35 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -229,6 +229,8 @@ config MACH_ORIGEN select S5P_DEV_FIMC2 select S5P_DEV_FIMC3 select S5P_DEV_USB_EHCI + select SAMSUNG_DEV_BACKLIGHT + select SAMSUNG_DEV_PWM select EXYNOS4_SETUP_SDHCI select EXYNOS4_SETUP_USB_PHY help diff --git a/arch/arm/mach-exynos4/mach-origen.c b/arch/arm/mach-exynos4/mach-origen.c index 7ac71878767b..937db75688d0 100644 --- a/arch/arm/mach-exynos4/mach-origen.c +++ b/arch/arm/mach-exynos4/mach-origen.c @@ -14,6 +14,7 @@ #include <linux/platform_device.h> #include <linux/io.h> #include <linux/input.h> +#include <linux/pwm_backlight.h> #include <asm/mach/arch.h> #include <asm/mach-types.h> @@ -26,6 +27,8 @@ #include <plat/iic.h> #include <plat/ehci.h> #include <plat/clock.h> +#include <plat/gpio-cfg.h> +#include <plat/backlight.h> #include <mach/map.h> @@ -102,6 +105,17 @@ static struct platform_device *origen_devices[] __initdata = { &s5p_device_fimc3, }; +/* LCD Backlight data */ +static struct samsung_bl_gpio_info origen_bl_gpio_info = { + .no = EXYNOS4_GPD0(0), + .func = S3C_GPIO_SFN(2), +}; + +static struct platform_pwm_backlight_data origen_bl_data = { + .pwm_id = 0, + .pwm_period_ns = 1000, +}; + static void __init origen_map_io(void) { s5p_init_io(NULL, 0, S5P_VA_CHIPID); @@ -117,6 +131,8 @@ static void __init origen_machine_init(void) clk_xusbxti.rate = 24000000; platform_add_devices(origen_devices, ARRAY_SIZE(origen_devices)); + + samsung_bl_set(&origen_bl_gpio_info, &origen_bl_data); } MACHINE_START(ORIGEN, "ORIGEN") |