@@ -56,6 +56,7 @@ config MACH_SMDKC100
select S3C_DEV_RTC
select S3C_DEV_WDT
select SAMSUNG_DEV_ADC
+ select SAMSUNG_DEV_BACKLIGHT
select SAMSUNG_DEV_IDE
select SAMSUNG_DEV_KEYPAD
select SAMSUNG_DEV_PWM
@@ -51,6 +51,7 @@
#include <plat/keypad.h>
#include <plat/ts.h>
#include <plat/audio.h>
+#include <plat/backlight.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define SMDKC100_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
@@ -179,45 +180,6 @@ static struct samsung_keypad_platdata smdkc100_keypad_data __initdata = {
.cols = 8,
};
-static int smdkc100_backlight_init(struct device *dev)
-{
- int ret;
-
- ret = gpio_request(S5PC100_GPD(0), "Backlight");
- if (ret) {
- printk(KERN_ERR "failed to request GPF for PWM-OUT0\n");
- return ret;
- }
-
- /* Configure GPIO pin with S5PC100_GPD_TOUT_0 */
- s3c_gpio_cfgpin(S5PC100_GPD(0), S3C_GPIO_SFN(2));
-
- return 0;
-}
-
-static void smdkc100_backlight_exit(struct device *dev)
-{
- s3c_gpio_cfgpin(S5PC100_GPD(0), S3C_GPIO_OUTPUT);
- gpio_free(S5PC100_GPD(0));
-}
-
-static struct platform_pwm_backlight_data smdkc100_backlight_data = {
- .pwm_id = 0,
- .max_brightness = 255,
- .dft_brightness = 255,
- .pwm_period_ns = 78770,
- .init = smdkc100_backlight_init,
- .exit = smdkc100_backlight_exit,
-};
-
-static struct platform_device smdkc100_backlight_device = {
- .name = "pwm-backlight",
- .dev = {
- .parent = &s3c_device_timer[0].dev,
- .platform_data = &smdkc100_backlight_data,
- },
-};
-
static struct platform_device *smdkc100_devices[] __initdata = {
&s3c_device_adc,
&s3c_device_cfcon,
@@ -239,8 +201,6 @@ static struct platform_device *smdkc100_devices[] __initdata = {
&s5p_device_fimc1,
&s5p_device_fimc2,
&s5pc100_device_spdif,
- &s3c_device_timer[0],
- &smdkc100_backlight_device,
};
static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
@@ -249,6 +209,16 @@ static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
.oversampling_shift = 2,
};
+/* LCD Backlight data */
+static struct samsung_bl_gpio_info smdkc100_bl_gpio_info = {
+ .no = S5PC100_GPD(0),
+ .func = S3C_GPIO_SFN(2),
+};
+
+static struct platform_pwm_backlight_data smdkc100_bl_data = {
+ .pwm_id = 0,
+};
+
static void __init smdkc100_map_io(void)
{
s5p_init_io(NULL, 0, S5P_VA_CHIPID);
@@ -276,6 +246,9 @@ static void __init smdkc100_machine_init(void)
/* LCD init */
gpio_request(S5PC100_GPH0(6), "GPH0");
smdkc100_lcd_power_set(&smdkc100_lcd_power_data, 0);
+
+ samsung_bl_set(&smdkc100_bl_gpio_info, &smdkc100_bl_data);
+
platform_add_devices(smdkc100_devices, ARRAY_SIZE(smdkc100_devices));
}
This patch adds support for LCD backlight using PWM timer for Samsung SMDKC100 board. Signed-off-by: Banajit Goswami <banajit.g@samsung.com> --- arch/arm/mach-s5pc100/Kconfig | 1 + arch/arm/mach-s5pc100/mach-smdkc100.c | 55 ++++++++------------------------ 2 files changed, 15 insertions(+), 41 deletions(-)