| Message ID | 20200420220458.v2.6.I89df9b6094549b8149aa8b8347f7401c678055b0@changeid |
|---|---|
| State | New |
| Headers | show |
| Series | drm: Prepare to use a GPIO on ti-sn65dsi86 for Hot Plug Detect | expand |
Quoting Douglas Anderson (2020-04-20 22:06:22) > We don't have the HPD line hooked up to the bridge chip. Add it as > suggested in the patch ("dt-bindings: drm/bridge: ti-sn65dsi86: > Document no-hpd"). > > NOTE: this patch isn't expected to have any effect but just keeps us > cleaner for the future. Currently the driver in Linux just assumes > that nobody has HPD hooked up. This change allows us to later > implement HPD support in the driver without messing up sdm845-cheza. > > Signed-off-by: Douglas Anderson <dianders@chromium.org> > --- Reviewed-by: Stephen Boyd <swboyd@chromium.org>
diff --git a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi index 9070be43a309..5938f8b2aa2f 100644 --- a/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi @@ -548,6 +548,8 @@ sn65dsi86_bridge: bridge@2d { clocks = <&rpmhcc RPMH_LN_BB_CLK2>; clock-names = "refclk"; + no-hpd; + ports { #address-cells = <1>; #size-cells = <0>;
We don't have the HPD line hooked up to the bridge chip. Add it as suggested in the patch ("dt-bindings: drm/bridge: ti-sn65dsi86: Document no-hpd"). NOTE: this patch isn't expected to have any effect but just keeps us cleaner for the future. Currently the driver in Linux just assumes that nobody has HPD hooked up. This change allows us to later implement HPD support in the driver without messing up sdm845-cheza. Signed-off-by: Douglas Anderson <dianders@chromium.org> --- Changes in v2: - ("arm64: dts: sdm845: Add "no-hpd" to sn65dsi86 on cheza") new for v2. arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi | 2 ++ 1 file changed, 2 insertions(+)