From: Giridhar Maruthy <giridhar.maruthy@xxxxxxxxxx>
This patch adds support for LCD backlight using PWM timer on
Origen board.
Signed-off-by: Giridhar Maruthy <giridhar.maruthy@xxxxxxxxxx>
Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
---
arch/arm/mach-exynos4/Kconfig | 2 ++
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 e6925de..3e9138e 100644
--- a/arch/arm/mach-exynos4/Kconfig
+++ b/arch/arm/mach-exynos4/Kconfig
@@ -230,6 +230,8 @@ config MACH_ORIGEN
select S3C_DEV_RTC
select S3C_DEV_WDT
select S3C_DEV_HSMMC2
+ select SAMSUNG_DEV_BACKLIGHT
+ select SAMSUNG_DEV_PWM
select EXYNOS4_SETUP_SDHCI
help
Machine support for ORIGEN based on Samsung EXYNOS4210
diff --git a/arch/arm/mach-exynos4/mach-origen.c b/arch/arm/mach-exynos4/mach-origen.c
index ed59f86..b871815 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>
@@ -24,6 +25,8 @@
#include <plat/devs.h>
#include <plat/sdhci.h>
#include <plat/iic.h>
+#include <plat/gpio-cfg.h>
+#include <plat/backlight.h>
#include <mach/map.h>
@@ -85,6 +88,17 @@ static struct platform_device *origen_devices[] __initdata = {
&s3c_device_wdt,
};
+/* 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);
@@ -96,6 +110,8 @@ static void __init origen_machine_init(void)
{
s3c_sdhci2_set_platdata(&origen_hsmmc2_pdata);
platform_add_devices(origen_devices, ARRAY_SIZE(origen_devices));
+
+ samsung_bl_set(&origen_bl_gpio_info, &origen_bl_data);
}
MACHINE_START(ORIGEN, "ORIGEN")
--
1.7.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
