mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 05:34:00 +08:00
3157694d8c
Some panels (i.e. N116BGE-L41), in their power sequence specifications, request a delay between set the PWM signal and enable the backlight and between clear the PWM signal and disable the backlight. Add support for the new post-pwm-on-delay-ms and pwm-off-delay-ms proprieties to meet the timings. Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Acked-by: Jingoo Han <jingoohan1@gmail.com> Acked-by: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
29 lines
802 B
C
29 lines
802 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
|
|
*/
|
|
#ifndef __LINUX_PWM_BACKLIGHT_H
|
|
#define __LINUX_PWM_BACKLIGHT_H
|
|
|
|
#include <linux/backlight.h>
|
|
|
|
struct platform_pwm_backlight_data {
|
|
int pwm_id;
|
|
unsigned int max_brightness;
|
|
unsigned int dft_brightness;
|
|
unsigned int lth_brightness;
|
|
unsigned int pwm_period_ns;
|
|
unsigned int *levels;
|
|
unsigned int post_pwm_on_delay;
|
|
unsigned int pwm_off_delay;
|
|
/* TODO remove once all users are switched to gpiod_* API */
|
|
int enable_gpio;
|
|
int (*init)(struct device *dev);
|
|
int (*notify)(struct device *dev, int brightness);
|
|
void (*notify_after)(struct device *dev, int brightness);
|
|
void (*exit)(struct device *dev);
|
|
int (*check_fb)(struct device *dev, struct fb_info *info);
|
|
};
|
|
|
|
#endif
|