From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Mon, 5 Oct 2015 14:47:16 +0200 Subject: [PATCH 5/6] ARM: s3c64xx: hmt: Use PWM lookup table In-Reply-To: <1444049237-29878-1-git-send-email-thierry.reding@gmail.com> References: <1444049237-29878-1-git-send-email-thierry.reding@gmail.com> Message-ID: <1444049237-29878-6-git-send-email-thierry.reding@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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. Cc: Kukjin Kim Cc: Krzysztof Kozlowski Signed-off-by: Thierry Reding --- arch/arm/mach-s3c64xx/mach-hmt.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c index e4b087c58ee6..816b39d1e6d1 100644 --- a/arch/arm/mach-s3c64xx/mach-hmt.c +++ b/arch/arm/mach-s3c64xx/mach-hmt.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -73,6 +74,11 @@ static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = { }, }; +static struct pwm_lookup hmt_pwm_lookup[] = { + PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL, + 1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL), +}; + static int hmt_bl_init(struct device *dev) { int ret; @@ -110,10 +116,8 @@ static void hmt_bl_exit(struct device *dev) } static struct platform_pwm_backlight_data hmt_backlight_data = { - .pwm_id = 1, .max_brightness = 100 * 256, .dft_brightness = 40 * 256, - .pwm_period_ns = 1000000000 / (100 * 256 * 20), .enable_gpio = -1, .init = hmt_bl_init, .notify = hmt_bl_notify, @@ -268,6 +272,7 @@ static void __init hmt_machine_init(void) gpio_request(S3C64XX_GPF(13), "usb power"); gpio_direction_output(S3C64XX_GPF(13), 1); + pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup)); platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices)); } -- 2.5.0