From mboxrd@z Thu Jan 1 00:00:00 1970 From: thierry.reding@gmail.com (Thierry Reding) Date: Mon, 5 Oct 2015 10:49:48 +0200 Subject: [PATCH 08/17] ARM: pxa: mioa701: 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: <1444034997-9805-9-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/mioa701.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c index 29997bde277d..039f2601487b 100644 --- a/arch/arm/mach-pxa/mioa701.c +++ b/arch/arm/mach-pxa/mioa701.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include @@ -181,12 +182,15 @@ static unsigned long mioa701_pin_config[] = { MFP_CFG_OUT(GPIO116, AF0, DRIVE_HIGH), }; +static struct pwm_lookup mioa701_pwm_lookup[] = { + PWM_LOOKUP("pxa27x-pwm.0", 0, "pwm-backlight", NULL, 4000 * 1024, + PWM_POLARITY_NORMAL), +}; + /* LCD Screen and Backlight */ static struct platform_pwm_backlight_data mioa701_backlight_data = { - .pwm_id = 0, .max_brightness = 100, .dft_brightness = 50, - .pwm_period_ns = 4000 * 1024, /* Fl = 250kHz */ .enable_gpio = -1, }; @@ -751,6 +755,7 @@ static void __init mioa701_machine_init(void) pxa_set_udc_info(&mioa701_udc_info); pxa_set_ac97_info(&mioa701_ac97_info); pm_power_off = mioa701_poweroff; + pwm_add_table(mioa701_pwm_lookup, ARRAY_SIZE(mioa701_pwm_lookup)); platform_add_devices(devices, ARRAY_SIZE(devices)); gsm_init(); -- 2.5.0