From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Mon, 5 Oct 2015 10:49:55 +0200 Subject: [PATCH 15/17] ARM: pxa: viper: Use PWM lookup table In-Reply-To: <1444034997-9805-1-git-send-email-thierry.reding@gmail.com> References: <1444034997-9805-1-git-send-email-thierry.reding@gmail.com> Message-ID: <1444034997-9805-16-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: Daniel Mack Cc: Haojian Zhuang Cc: Robert Jarzmik Signed-off-by: Thierry Reding --- arch/arm/mach-pxa/viper.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c index 4841d6cefe76..b09e8cadd41f 100644 --- a/arch/arm/mach-pxa/viper.c +++ b/arch/arm/mach-pxa/viper.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include @@ -350,6 +351,11 @@ static struct pxafb_mach_info fb_info = { .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, }; +static struct pwm_lookup viper_pwm_lookup[] = { + PWM_LOOKUP("pxa25x-pwm.0", 0, "pwm-backlight.0", NULL, 1000000, + PWM_POLARITY_NORMAL), +}; + static int viper_backlight_init(struct device *dev) { int ret; @@ -398,10 +404,8 @@ static void viper_backlight_exit(struct device *dev) } static struct platform_pwm_backlight_data viper_backlight_data = { - .pwm_id = 0, .max_brightness = 100, .dft_brightness = 100, - .pwm_period_ns = 1000000, .enable_gpio = -1, .init = viper_backlight_init, .notify = viper_backlight_notify, @@ -939,6 +943,7 @@ static void __init viper_init(void) smc91x_device.num_resources--; pxa_set_i2c_info(NULL); + pwm_add_table(viper_pwm_lookup, ARRAY_SIZE(viper_pwm_lookup)); platform_add_devices(viper_devs, ARRAY_SIZE(viper_devs)); viper_init_vcore_gpios(); -- 2.5.0