From bd3208bab35872e545d40f22cc707a8c4892b66e Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 5 Oct 2015 10:49:46 +0200 Subject: [PATCH] ARM: pxa: magician: Use PWM lookup table 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: Daniel Mack Cc: Haojian Zhuang Cc: Robert Jarzmik Signed-off-by: Thierry Reding Acked-by: Philipp Zabel Signed-off-by: Robert Jarzmik --- arch/arm/mach-pxa/magician.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c index a9761c293028..240e4c34b226 100644 --- a/arch/arm/mach-pxa/magician.c +++ b/arch/arm/mach-pxa/magician.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include @@ -346,6 +347,11 @@ static struct pxafb_mach_info samsung_info = { * Backlight */ +static struct pwm_lookup magician_pwm_lookup[] = { + PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 30923, + PWM_POLARITY_NORMAL), +}; + static struct gpio magician_bl_gpios[] = { { EGPIO_MAGICIAN_BL_POWER, GPIOF_DIR_OUT, "Backlight power" }, { EGPIO_MAGICIAN_BL_POWER2, GPIOF_DIR_OUT, "Backlight power 2" }, @@ -374,10 +380,8 @@ static void magician_backlight_exit(struct device *dev) } static struct platform_pwm_backlight_data backlight_data = { - .pwm_id = 0, .max_brightness = 272, .dft_brightness = 100, - .pwm_period_ns = 30923, .enable_gpio = -1, .init = magician_backlight_init, .notify = magician_backlight_notify, @@ -743,6 +747,7 @@ static void __init magician_init(void) pxa_set_btuart_info(NULL); pxa_set_stuart_info(NULL); + pwm_add_table(magician_pwm_lookup, ARRAY_SIZE(magician_pwm_lookup)); platform_add_devices(ARRAY_AND_SIZE(devices)); pxa_set_ficp_info(&magician_ficp_info);