From 8c78aaa6ee587bce9d913114ba2aec5d345e39ed Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 13 Oct 2015 05:04:21 +0900 Subject: [PATCH] ARM: S3C24XX: Use PWM lookup table for mach-h1940 Use a PWM lookup table to provide the PWM to the pwm-backlight device. The driver has a legacy code path that is required only because boards still use the legacy method of requesting PWMs by global ID. Replacing these usages allows that legacy fallback to be removed. Signed-off-by: Thierry Reding Reviewed-by: Krzysztof Kozlowski Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/mach-h1940.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c index d40d4f5244c6..9f54300df4b3 100644 --- a/arch/arm/mach-s3c24xx/mach-h1940.c +++ b/arch/arm/mach-s3c24xx/mach-h1940.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -469,6 +470,11 @@ static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = { .ocr_avail = MMC_VDD_32_33, }; +static struct pwm_lookup h1940_pwm_lookup[] = { + PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296, + PWM_POLARITY_NORMAL), +}; + static int h1940_backlight_init(struct device *dev) { gpio_request(S3C2410_GPB(0), "Backlight"); @@ -503,11 +509,8 @@ static void h1940_backlight_exit(struct device *dev) static struct platform_pwm_backlight_data backlight_data = { - .pwm_id = 0, .max_brightness = 100, .dft_brightness = 50, - /* tcnt = 0x31 */ - .pwm_period_ns = 36296, .enable_gpio = -1, .init = h1940_backlight_init, .notify = h1940_backlight_notify, @@ -725,6 +728,7 @@ static void __init h1940_init(void) gpio_request(H1940_LATCH_SD_POWER, "SD power"); gpio_direction_output(H1940_LATCH_SD_POWER, 0); + pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup)); platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices)); gpio_request(S3C2410_GPA(1), "Red LED blink"); -- 2.34.1