UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

leds: gpio: Set max brightness to 1 

GPIO LEDs only know 2 states: ON or OFF and do not have PWM capabilities.
However, the max brightness is reported as 255.

This patch sets the max brightness value of a GPIO controlled LED to 1.

Tested on my PinePhone 1.2.

Signed-off-by: Dylan Van Assche <me@dylanvanassche.be>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
This commit is contained in:
Dylan Van Assche 2020-12-29 19:15:12 +01:00 committed by Pavel Machek
parent 6c3384d8f4
commit d864645276
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/leds/leds-gpio.c
View File

@ -96,7 +96,8 @@ static int create_gpio_led(const struct gpio_led *template,
} else {
state = (template->default_state == LEDS_GPIO_DEFSTATE_ON);
}
led_dat->cdev.brightness = state ? LED_FULL : LED_OFF;
led_dat->cdev.brightness = state;
led_dat->cdev.max_brightness = 1;
if (!template->retain_state_suspended)
led_dat->cdev.flags |= LED_CORE_SUSPENDRESUME;
if (template->panic_indicator)