diff options
Diffstat (limited to 'arch/arm/mach-s5pv210/mach-smdkv210.c')
| -rw-r--r-- | arch/arm/mach-s5pv210/mach-smdkv210.c | 46 |
1 files changed, 45 insertions, 1 deletions
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c index bc9fdb52a02..c6a9e86c2d5 100644 --- a/arch/arm/mach-s5pv210/mach-smdkv210.c +++ b/arch/arm/mach-s5pv210/mach-smdkv210.c @@ -18,6 +18,7 @@ #include <linux/fb.h> #include <linux/gpio.h> #include <linux/delay.h> +#include <linux/pwm_backlight.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -43,6 +44,7 @@ #include <plat/keypad.h> #include <plat/pm.h> #include <plat/fb.h> +#include <plat/s5p-time.h> /* Following are default values for UCON, ULCON and UFCON UART registers */ #define SMDKV210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ @@ -208,6 +210,45 @@ static struct s3c_fb_platdata smdkv210_lcd0_pdata __initdata = { .setup_gpio = s5pv210_fb_gpio_setup_24bpp, }; +static int smdkv210_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(S5PV210_GPD0(3), "Backlight"); + if (ret) { + printk(KERN_ERR "failed to request GPD for PWM-OUT 3\n"); + return ret; + } + + /* Configure GPIO pin with S5PV210_GPD_0_3_TOUT_3 */ + s3c_gpio_cfgpin(S5PV210_GPD0(3), S3C_GPIO_SFN(2)); + + return 0; +} + +static void smdkv210_backlight_exit(struct device *dev) +{ + s3c_gpio_cfgpin(S5PV210_GPD0(3), S3C_GPIO_OUTPUT); + gpio_free(S5PV210_GPD0(3)); +} + +static struct platform_pwm_backlight_data smdkv210_backlight_data = { + .pwm_id = 3, + .max_brightness = 255, + .dft_brightness = 255, + .pwm_period_ns = 78770, + .init = smdkv210_backlight_init, + .exit = smdkv210_backlight_exit, +}; + +static struct platform_device smdkv210_backlight_device = { + .name = "pwm-backlight", + .dev = { + .parent = &s3c_device_timer[3].dev, + .platform_data = &smdkv210_backlight_data, + }, +}; + static struct platform_device *smdkv210_devices[] __initdata = { &s3c_device_adc, &s3c_device_cfcon, @@ -229,6 +270,8 @@ static struct platform_device *smdkv210_devices[] __initdata = { &samsung_device_keypad, &smdkv210_dm9000, &smdkv210_lcd_lte480wv, + &s3c_device_timer[3], + &smdkv210_backlight_device, }; static void __init smdkv210_dm9000_init(void) @@ -272,6 +315,7 @@ static void __init smdkv210_map_io(void) s5p_init_io(NULL, 0, S5P_VA_CHIPID); s3c24xx_init_clocks(24000000); s3c24xx_init_uarts(smdkv210_uartcfgs, ARRAY_SIZE(smdkv210_uartcfgs)); + s5p_set_timer_source(S5P_PWM2, S5P_PWM4); } static void __init smdkv210_machine_init(void) @@ -306,5 +350,5 @@ MACHINE_START(SMDKV210, "SMDKV210") .init_irq = s5pv210_init_irq, .map_io = smdkv210_map_io, .init_machine = smdkv210_machine_init, - .timer = &s3c24xx_timer, + .timer = &s5p_timer, MACHINE_END |