Documentation for the optional backlight-pwm-passthru property.
Tells the EDP panel to folow the input pwm frequency instead
of generating its own.
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.
--
2.13.5
