On Friday 16 March 2018 08:26 AM, Alexandru M Stan wrote: > Documentation for the optional backlight-pwm-passthru property. > Tells the EDP panel to folow the input pwm frequency instead s/folow/follow It would be nice if we could add the details you mentioned in patch #0 in either this or the next patch. > of generating its own. This is one of those bindings which is more a knob than a HW property, but I can't think of any easy way to figure this out in SW. So, I guess it's okay to have. One thing I was wondering about was whether this prop should belong to the eDP controller or the eDP panel. I don't have any strong opinion about it, though. Reviewed-by: Archit Taneja <architt at codeaurora.org> Thanks, Archit > > Signed-off-by: Alexandru M Stan <amstan at chromium.org> > --- > > Documentation/devicetree/bindings/display/bridge/analogix_dp.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt > index 0c7473dd0e51..3c15242f6ce3 100644 > --- a/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt > +++ b/Documentation/devicetree/bindings/display/bridge/analogix_dp.txt > @@ -23,6 +23,10 @@ Required properties for dp-controller: > from general PHY binding: Should be "dp". > > Optional properties for dp-controller: > + -backlight-pwm-passthru: > + Directly pass the PWM frequency applied to the BL_PWM_DIM > + pin to the backlight current source. Done via > + EDP_BACKLIGHT_MODE_SET_REGISTER on DPCD. > -force-hpd: > Indicate driver need force hpd when hpd detect failed, this > is used for some eDP screen which don't have hpd signal. >
