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 <arch...@codeaurora.org> Thanks, Archit
Signed-off-by: Alexandru M Stan <ams...@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.
