Re: [PATCH 2/3] arm64: dts: qcom: sm8150: Add DISPCC node

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On 12 December 2022 12:33:13 GMT+03:00, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>Years after the SoC support has been added, it's high time for it to
>get dispcc going. Add the node to ensure that.
>
>Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
>---
> arch/arm64/boot/dts/qcom/sm8150.dtsi | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
>diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
>index a0c57fb798d3..ff04397777f4 100644
>--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
>+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
>@@ -3579,6 +3579,32 @@ camnoc_virt: interconnect@ac00000 {
> 			qcom,bcm-voters = <&apps_bcm_voter>;
> 		};
> 
>+		dispcc: clock-controller@af00000 {
>+			compatible = "qcom,sm8150-dispcc";
>+			reg = <0 0x0af00000 0 0x10000>;
>+			clocks = <&rpmhcc RPMH_CXO_CLK>,
>+				 <0>,
>+				 <0>,
>+				 <0>,
>+				 <0>,
>+				 <0>,
>+				 <0>;
>+			clock-names = "bi_tcxo",
>+				      "dsi0_phy_pll_out_byteclk",
>+				      "dsi0_phy_pll_out_dsiclk",
>+				      "dsi1_phy_pll_out_byteclk",
>+				      "dsi1_phy_pll_out_dsiclk",
>+				      "dp_phy_pll_link_clk",
>+				      "dp_phy_pll_vco_div_clk";
>+			#clock-cells = <1>;
>+			#reset-cells = <1>;
>+			#power-domain-cells = <1>;
>+
>+			power-domains = <&rpmhpd SM8150_MMCX>;
>+			/* TODO: Maybe rpmhpd_opp_min_svs could work as well? */
>+			required-opps = <&rpmhpd_opp_low_svs>;

Is it required for the dispcc, for the DSI or for the dpu? We have stumbled upon the similar issue when working on the 8350, see the latest Robert's patchset.


>+		};
>+
> 		pdc: interrupt-controller@b220000 {
> 			compatible = "qcom,sm8150-pdc", "qcom,pdc";
> 			reg = <0 0x0b220000 0 0x400>;

-- 
With best wishes
Dmitry




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