linux-stable/include/linux/pwm_backlight.h
Thomas Zimmermann 397b749372 backlight: pwm-backlight: Remove struct backlight_ops.check_fb
The internal check_fb callback from struct pwm_bl_data is never
implemented. The driver's implementation of check_fb always
returns true, which is the backlight core's default if no
implementation has been set. So remove the code from the driver.

v2:
	* reword commit message

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20240305162425.23845-7-tzimmermann@suse.de
Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-28 10:09:02 +00:00

25 lines
649 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 {
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;
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);
};
#endif