Quoting Tanmay Shah (2020-06-30 12:51:51) > diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi > index 31b9217bb5bf..271d55db62ab 100644 > --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi > +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi > @@ -2440,6 +2447,44 @@ dsi_phy: dsi-phy@ae94400 { > > status = "disabled"; > }; > + > + msm_dp: displayport-controller@ae90000{ > + status = "disabled"; > + compatible = "qcom,sc7180-dp"; > + > + reg = <0 0xae90000 0 0x1400>; Please use full 8 digits in address, i.e. 0x0ae90000. > + reg-names = "dp_controller"; reg-names is pretty useless here. Please remove it. > + > + interrupt-parent = <&mdss>; > + interrupts = <12 0>; Please use irq flags instead of 0. > + > + clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>, > + <&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>; > + clock-names = "core_iface", "core_aux", "ctrl_link", > + "ctrl_link_iface", "stream_pixel"; > + #clock-cells = <1>; > + assigned-clocks = <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>; > + assigned-clock-parents = <&msm_dp 1>; Why don't we assign both clk parents here (&msm_dp 0) so that we don't need any clk_set_parent() calls in the code? > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + port@0 { > + reg = <0>; > + dp_in: endpoint { > + remote-endpoint = <&dpu_intf0_out>; > + }; > + }; > + > + port@1 { > + reg = <1>; > + dp_out: endpoint { }; > + }; > + }; > + }; > }; > > dispcc: clock-controller@af00000 {