On Thu 07 May 14:35 PDT 2020, Douglas Anderson wrote:
> 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@xxxxxxxxxxxx>
> Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Applied this patch for 5.8 in the Qualcomm SoC tree.
Regards,
Bjorn
> ---
>
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> 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(+)
>
> 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>;
> --
> 2.26.2.645.ge9eca65c58-goog
>
