SRU justification:
[Impact] OLED backlight is not supported by the current kernel. Sometimes the screen goes to black screen when enabled dpcd backlight support.
[Fix] Fix max brightness value and enable dpcd to support adjusting brightness on OLED. Force enable backlight again to fix black screen issue.
[Test] Verified on several laptops, backlight on and brightness is adjusted.
[Regression Potential] Medium, change is limited to specific hardware feature. Verified on no dpcd support laptops, no regression found yet.
SRU justification:
[Impact]
OLED backlight is not supported by the current kernel.
Sometimes the screen goes to black screen when enabled dpcd backlight support.
[Fix]
Fix max brightness value and enable dpcd to support adjusting brightness on OLED.
Force enable backlight again to fix black screen issue.
[Test]
Verified on several laptops, backlight on and brightness is adjusted.
[Regression Potential]
Medium, change is limited to specific hardware feature.
Verified on no dpcd support laptops, no regression found yet.