On 9/3/25 1:58 PM, Dmitry Baryshkov wrote:
> From: Jessica Zhang <jessica.zhang@xxxxxxxxxxxxxxxx>
>
> Update Qualcomm DT files in order to declare extra stream pixel clocks
> and extra register resources used on these platforms to support
> DisplayPort MST.
>
> The driver will continue to work with the old DTS files as even after
> adding MST support the driver will have to support old DTS files which
> didn't have MST clocks.
>
> Signed-off-by: Jessica Zhang <jessica.zhang@xxxxxxxxxxxxxxxx>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
> ---
[...]
> diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
> index 70c87c79e1325f4ab4c81f34e99c0b52be4b3810..e6a7248040095077d6f98d632f4e8a1868432445 100644
> --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
> @@ -3241,16 +3241,20 @@ mdss_dp0: displayport-controller@ae90000 {
> <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
> <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
> <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
> - <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
> + <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>,
> + <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK>;
> clock-names = "core_iface",
> "core_aux",
> "ctrl_link",
> "ctrl_link_iface",
> - "stream_pixel";
> + "stream_pixel",
> + "stream_1_pixel";
>
> assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
> - <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
> + <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>,
> + <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK_SRC>;
> assigned-clock-parents = <&usb_prim_qmpphy QMP_USB43DP_DP_LINK_CLK>,
> + <&usb_prim_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
> <&usb_prim_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
>
> phys = <&usb_prim_qmpphy QMP_USB43DP_DP_PHY>;
> @@ -3319,16 +3323,20 @@ mdss_dp1: displayport-controller@ae98000 {
> <&dispcc DISP_CC_MDSS_DP_AUX1_CLK>,
> <&dispcc DISP_CC_MDSS_DP_LINK1_CLK>,
> <&dispcc DISP_CC_MDSS_DP_LINK1_INTF_CLK>,
> - <&dispcc DISP_CC_MDSS_DP_PIXEL2_CLK>;
> + <&dispcc DISP_CC_MDSS_DP_PIXEL2_CLK>,
> + <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK>;
> clock-names = "core_iface",
> "core_aux",
> "ctrl_link",
> "ctrl_link_iface",
> - "stream_pixel";
> + "stream_pixel",
> + "stream_1_pixel";
>
> assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK1_CLK_SRC>,
> - <&dispcc DISP_CC_MDSS_DP_PIXEL2_CLK_SRC>;
> + <&dispcc DISP_CC_MDSS_DP_PIXEL2_CLK_SRC>,
> + <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK_SRC>;
> assigned-clock-parents = <&usb_sec_qmpphy QMP_USB43DP_DP_LINK_CLK>,
> + <&usb_sec_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>,
> <&usb_sec_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
Something's not right here
Konrad
