On Sun, Nov 28, 2021 at 01:03:59PM +0100, Greg KH wrote: > On Wed, Nov 24, 2021 at 01:01:22PM -0500, Alex Deucher wrote: > > From: Roman Li <Roman.Li@xxxxxxx> > > > > [Why] > > After commit ("drm/amdgpu/display: add support for multiple backlights") > > number of eDPs is defined while registering backlight device. > > However the panel's extended caps get updated once before register call. > > That leads to regression with extended caps like oled brightness control. > > > > [How] > > Update connector ext caps after register_backlight_device > > > > Fixes: 7fd13baeb7a3a4 ("drm/amdgpu/display: add support for multiple backlights") > > Link: https://www.reddit.com/r/AMDLaptops/comments/qst0fm/after_updating_to_linux_515_my_brightness/ > > > > Signed-off-by: Roman Li <Roman.Li@xxxxxxx> > > Tested-by: Samuel Čavoj <samuel@xxxxxxxxx> > > Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> > > Reviewed-by: Jasdeep Dhillon <Jasdeep.Dhillon@xxxxxxx> > > Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> > > Cc: stable@xxxxxxxxxxxxxxx > > (cherry picked from commit dab60582685aabdae2d4ff7ce716456bd0dc7a0f) > > Now queued up for 5.10 and 5.15, thanks. Oops, only for 5.15, not for 5.10, sorry. greg k-h