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@xxxxxxxxxxxxxx>
Thanks,
Archit
Signed-off-by: Alexandru M Stan <amstan@xxxxxxxxxxxx>
---
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.
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