linux-kernel - Re: [PATCH v4 5/5] arm64: dts: qcom: qcm2290: Add venus video node

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Message-ID: <aF0z0NiuL+Cg38kC@trex>
Date: Thu, 26 Jun 2025 13:49:36 +0200
From: Jorge Ramirez <jorge.ramirez@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>,
        quic_vgarodia@...cinc.com, quic_dikshita@...cinc.com,
        bryan.odonoghue@...aro.org, mchehab@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, andersson@...nel.org,
        konradybcio@...nel.org, linux-arm-msm@...r.kernel.org,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 5/5] arm64: dts: qcom: qcm2290: Add venus video node

On 23/06/25 13:16:30, Konrad Dybcio wrote:
> On 6/23/25 12:51 PM, Jorge Ramirez-Ortiz wrote:
> > Add DT entries for the qcm2290 venus encoder/decoder.
> > 
> > Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>
> > Co-developed-by: Loic Poulain <loic.poulain@....qualcomm.com>
> > Signed-off-by: Loic Poulain <loic.poulain@....qualcomm.com>
> > ---
> 
> [...]
> 
> > +		venus: video-codec@...0000 {
> > +			compatible = "qcom,qcm2290-venus";
> > +			reg = <0 0x5a00000 0 0xff000>;
> 
> the size seems to be 0xf0000 instead

you are right

> 
> > +			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";
> 
> one per line, please, also below

ok

> 
> > +			operating-points-v2 = <&venus_opp_table>;
> > +
> > +			clocks = <&gcc GCC_VIDEO_VENUS_CTL_CLK>,
> > +				 <&gcc GCC_VIDEO_AHB_CLK>,
> 
> On other platforms, this clock is consumed by videocc
> 
> > +				 <&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>;
> 
> lowercase hex is preferred

yep

> 
> > +
> > +			interconnects = <&mmnrt_virt MASTER_VIDEO_P0 0 &bimc SLAVE_EBI1 0>,
> 
> for this path: RPM_ALWAYS_TAG> +					<&bimc MASTER_APPSS_PROC 0 &config_noc SLAVE_VENUS_CFG 0>;
> 
> for this one: RPM_ACTIVE_TAG
>

ok

> > +			interconnect-names = "video-mem", "cpu-cfg";
> > +
> > +			venus_opp_table: opp-table {
> > +				compatible = "operating-points-v2";
> > +				opp-133000000 {
> 
> please add a newline before the subnode

ok

> 
> Konrad