mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 22:21:40 +00:00
2644f912b4
The PWM backlight still supports passing a enable GPIO line as platform data using the legacy <linux/gpio.h> API. It turns out that ever board using this mechanism except one is pass .enable_gpio = -1. So we drop all these cargo-culted -1's from all instances of this platform data in the kernel. The remaning board, Palm TC, is converted to pass a machine descriptior table with the "enable" GPIO instead, and delete the platform data entry for enable_gpio and the code handling it and things should work smoothly with the new API. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Krzysztof Kozlowski <krzk@kernel.org Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
27 lines
722 B
C
27 lines
722 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;
|
|
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
|