LCD screen brightness/contrast
(02-17-2017, 04:15 AM)xalius Wrote: For the BSP (3.10.x) kernel the PWM output (PL10 according to the schematics) is afaik tied to the LCD driver and there should be some controls in the /sys/ filesystem.

If you look at the device tree:

Pin Config:

LCD Entry seems to have values too:

PWM Driver entry, from the pinctrl phandle:
from the compatible line it should be tied to a driver called "sunxi-pwm16"

Is this it?

chris@pinetoo /sys/bus/platform/devices/spwm0.10 $ cat uevent

If so, how do we set the frequency/brightness?

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