In , it mentions that GPIO07 is used as LCD_BL_PWM to control backlight of DSI display(ch 6.1). Is PWM the only way to control backlight of DSI display?
Hi, in general the backlight of display is controlled by PWM signal. Do you mean your panel has another way to do so?
No, we currently modified our customized carrier board to make the connected panel has enough voltage to light on backlight.
The origin GPIO 07(LCD_BL_PWM) is used for other functionality in our customized carrier board, now we tend to use PIN 230 as LCD_BL_PWM.
Pin 230 is fan_pwm, you can find its usage in thermal design guide. Not sure if it fits your request.