linux-kernel - Re: [PATCH 5/5] arm64: dts: qcom: sa8775p: add display dt nodes

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Message-ID: <kxxcjrqndc2qzmexn4mm4vmfugfo23y63aa6oyia3uiwpe3arr@sbvdni2f2hq2>
Date: Thu, 12 Sep 2024 11:00:35 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Mahadevan <quic_mahap@...cinc.com>
Cc: robdclark@...il.com, quic_abhinavk@...cinc.com, sean@...rly.run, 
	marijn.suijten@...ainline.org, airlied@...il.com, daniel@...ll.ch, 
	maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, swboyd@...omium.org, 
	konrad.dybcio@...aro.org, danila@...xyga.com, bigfoot@...ssfun.cn, 
	neil.armstrong@...aro.org, mailingradian@...il.com, quic_jesszhan@...cinc.com, 
	andersson@...nel.org, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	quic_kalyant@...cinc.com, quic_jmadiset@...cinc.com, quic_vpolimer@...cinc.com
Subject: Re: [PATCH 5/5] arm64: dts: qcom: sa8775p: add display dt nodes

On Thu, Sep 12, 2024 at 12:44:37PM GMT, Mahadevan wrote:
> Add mdss and mdp DT nodes for SA8775P.
> 
> Signed-off-by: Mahadevan <quic_mahap@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 85 +++++++++++++++++++++++++++
>  1 file changed, 85 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 67ba124d20f8..d5d8e02fdb29 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -6,6 +6,7 @@
>  #include <dt-bindings/interconnect/qcom,icc.h>
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/clock/qcom,rpmh.h>
> +#include <dt-bindings/clock/qcom,sa8775p-dispcc.h>
>  #include <dt-bindings/clock/qcom,sa8775p-gcc.h>
>  #include <dt-bindings/clock/qcom,sa8775p-gpucc.h>
>  #include <dt-bindings/interconnect/qcom,sa8775p-rpmh.h>
> @@ -2937,6 +2938,90 @@ camcc: clock-controller@...0000 {
>  			#power-domain-cells = <1>;
>  		};
>  
> +		mdss0: display-subsystem@...0000 {

Is there going to be mdss1?

> +			compatible = "qcom,sa8775p-mdss";
> +			reg = <0x0 0x0ae00000 0x0 0x1000>;
> +			reg-names = "mdss";
> +
> +			/* same path used twice */
> +			interconnects = <&mmss_noc MASTER_MDP0 0 &mc_virt SLAVE_EBI1 0>,
> +					<&mmss_noc MASTER_MDP1 0 &mc_virt SLAVE_EBI1 0>,
> +					<&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
> +					 &config_noc SLAVE_DISPLAY_CFG QCOM_ICC_TAG_ACTIVE_ONLY>;
> +			interconnect-names = "mdp0-mem",
> +					     "mdp1-mem",
> +					     "cpu-cfg";
> +
> +			power-domains = <&dispcc0 MDSS_DISP_CC_MDSS_CORE_GDSC>;
> +
> +			clocks = <&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>,
> +				 <&gcc GCC_DISP_HF_AXI_CLK>,
> +				 <&dispcc0 MDSS_DISP_CC_MDSS_MDP_CLK>;
> +
> +			interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-controller;
> +			#interrupt-cells = <1>;
> +
> +			iommus = <&apps_smmu 0x1000 0x402>;
> +
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges;
> +
> +			status = "disabled";
> +
> +			mdss0_mdp: display-controller@...1000 {
> +				compatible = "qcom,sa8775p-dpu";
> +				reg = <0x0 0x0ae01000 0x0 0x8f000>,
> +				      <0x0 0x0aeb0000 0x0 0x2008>;
> +				reg-names = "mdp", "vbif";
> +
> +				clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
> +					<&dispcc0 MDSS_DISP_CC_MDSS_AHB_CLK>,
> +					<&dispcc0 MDSS_DISP_CC_MDSS_MDP_LUT_CLK>,
> +					<&dispcc0 MDSS_DISP_CC_MDSS_MDP_CLK>,
> +					<&dispcc0 MDSS_DISP_CC_MDSS_VSYNC_CLK>;

Wrong indentation

> +				clock-names = "bus",
> +					      "iface",
> +					      "lut",
> +					      "core",
> +					      "vsync";
> +
> +				assigned-clocks = <&dispcc0 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
> +				assigned-clock-rates = <19200000>;
> +
> +				operating-points-v2 = <&mdss0_mdp_opp_table>;
> +				power-domains = <&rpmhpd RPMHPD_MMCX>;
> +
> +				interrupt-parent = <&mdss0>;
> +				interrupts = <0>;
> +
> +				mdss0_mdp_opp_table: opp-table {
> +					compatible = "operating-points-v2";
> +
> +					opp-375000000 {
> +						opp-hz = /bits/ 64 <375000000>;
> +						required-opps = <&rpmhpd_opp_svs_l1>;
> +					};
> +
> +					opp-500000000 {
> +						opp-hz = /bits/ 64 <500000000>;
> +						required-opps = <&rpmhpd_opp_nom>;
> +					};
> +
> +					opp-575000000 {
> +						opp-hz = /bits/ 64 <575000000>;
> +						required-opps = <&rpmhpd_opp_turbo>;
> +					};
> +
> +					opp-650000000 {
> +						opp-hz = /bits/ 64 <650000000>;
> +						required-opps = <&rpmhpd_opp_turbo_l1>;
> +					};
> +				};
> +			};
> +		};
> +
>  		dispcc0: clock-controller@...0000 {
>  			compatible = "qcom,sa8775p-dispcc0";
>  			reg = <0x0 0x0af00000 0x0 0x20000>;
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry