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-rw-r--r--dts/Bindings/display/rockchip/dw_hdmi-rockchip.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/dts/Bindings/display/rockchip/dw_hdmi-rockchip.txt b/dts/Bindings/display/rockchip/dw_hdmi-rockchip.txt
index 39143424a4..3d32ce137e 100644
--- a/dts/Bindings/display/rockchip/dw_hdmi-rockchip.txt
+++ b/dts/Bindings/display/rockchip/dw_hdmi-rockchip.txt
@@ -12,6 +12,7 @@ following device-specific properties.
Required properties:
- compatible: should be one of the following:
+ "rockchip,rk3228-dw-hdmi"
"rockchip,rk3288-dw-hdmi"
"rockchip,rk3328-dw-hdmi"
"rockchip,rk3399-dw-hdmi"
@@ -38,6 +39,13 @@ Optional properties
- phys: from general PHY binding: the phandle for the PHY device.
- phy-names: Should be "hdmi" if phys references an external phy.
+Optional pinctrl entry:
+- If you have both a "unwedge" and "default" pinctrl entry, dw_hdmi
+ will switch to the unwedge pinctrl state for 10ms if it ever gets an
+ i2c timeout. It's intended that this unwedge pinctrl entry will
+ cause the SDA line to be driven low to work around a hardware
+ errata.
+
Example:
hdmi: hdmi@ff980000 {