linux-kernel - Re: [PATCH 2/5] arch: arm64: dts: qcom: qcm2290: Add venus video node

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Message-ID: <81a65ea6-2f46-4d11-9a3f-50664da78eea@linaro.org>
Date: Fri, 13 Jun 2025 15:06:23 +0100
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>,
 quic_vgarodia@...cinc.com, quic_dikshita@...cinc.com, mchehab@...nel.org,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 stanimir.varbanov@...aro.org
Cc: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] arch: arm64: dts: qcom: qcm2290: Add venus video node

On 13/06/2025 15:03, Jorge Ramirez-Ortiz wrote:
> Add DT entries for the qcm2290 venus encoder/decoder.
> 
> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>
> ---
>   arch/arm64/boot/dts/qcom/qcm2290.dtsi | 53 +++++++++++++++++++++++++++
>   1 file changed, 53 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcm2290.dtsi b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> index f49ac1c1f8a3..af2c1f66fe07 100644
> --- a/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcm2290.dtsi
> @@ -1628,6 +1628,59 @@ adreno_smmu: iommu@...0000 {
>   			#iommu-cells = <2>;
>   		};
>   
> +		venus: video-codec@...0000 {
> +			compatible = "qcom,qcm2290-venus";
> +			reg = <0 0x5a00000 0 0xff000>;
> +			interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>;
> +
> +			power-domains = <&gcc GCC_VENUS_GDSC>,
> +					<&gcc GCC_VCODEC0_GDSC>,
> +					<&rpmpd QCM2290_VDDCX>;
> +			power-domain-names = "venus", "vcodec0", "cx";
> +			operating-points-v2 = <&venus_opp_table>;
> +
> +			clocks = <&gcc GCC_VIDEO_VENUS_CTL_CLK>,
> +				 <&gcc GCC_VIDEO_AHB_CLK>,
> +				 <&gcc GCC_VENUS_CTL_AXI_CLK>,
> +				 <&gcc GCC_VIDEO_THROTTLE_CORE_CLK>,
> +				 <&gcc GCC_VIDEO_VCODEC0_SYS_CLK>,
> +				 <&gcc GCC_VCODEC0_AXI_CLK>;
> +			clock-names = "core", "iface", "bus", "throttle",
> +				      "vcodec0_core", "vcodec0_bus";
> +
> +			memory-region = <&pil_video_mem>;
> +			iommus = <&apps_smmu 0x860 0x0>,
> +				 <&apps_smmu 0x880 0x0>,
> +				 <&apps_smmu 0x861 0x04>,
> +				 <&apps_smmu 0x863 0x0>,
> +				 <&apps_smmu 0x804 0xE0>;
> +
> +			interconnects = <&mmnrt_virt MASTER_VIDEO_P0 0 &bimc SLAVE_EBI1 0>,
> +					<&bimc MASTER_APPSS_PROC 0 &config_noc SLAVE_VENUS_CFG 0>;
> +			interconnect-names = "video-mem", "cpu-cfg";
> +
> +			venus_opp_table: opp-table {
> +				compatible = "operating-points-v2";
> +				opp-133000000 {
> +					opp-hz = /bits/ 64 <133000000>;
> +					required-opps = <&rpmpd_opp_low_svs>;
> +				};
> +
> +				opp-240000000 {
> +					opp-hz = /bits/ 64 <240000000>;
> +					required-opps = <&rpmpd_opp_svs>;
> +				};
> +			};
> +
> +			video-decoder {
> +				compatible = "venus-decoder";
> +			};
> +
> +			video-encoder {
> +				compatible = "venus-encoder";
> +			};

These should be dropped in favour of static config in the driver.

> +		};
> +
>   		mdss: display-subsystem@...0000 {
>   			compatible = "qcom,qcm2290-mdss";
>   			reg = <0x0 0x05e00000 0x0 0x1000>;

---
bod