linux-kernel - Re: [PATCH v2 2/3] arm64: dts: qcom: sc7280: Move video-firmware to chrome-common

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Message-ID: <4cfad910-1821-3a31-c372-3f6b199e8f71@quicinc.com>
Date:   Wed, 22 Nov 2023 18:47:43 +0530
From:   Vikash Garodia <quic_vgarodia@...cinc.com>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        <cros-qcom-dts-watchers@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     <~postmarketos/upstreaming@...ts.sr.ht>,
        <phone-devel@...r.kernel.org>, <linux-media@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 2/3] arm64: dts: qcom: sc7280: Move video-firmware to
 chrome-common


On 10/2/2023 7:50 PM, Luca Weiss wrote:
> If the video-firmware node is present, the venus driver assumes we're on
> a system that doesn't use TZ for starting venus, like on ChromeOS
> devices.
> 
> Move the video-firmware node to chrome-common.dtsi so we can use venus
> on a non-ChromeOS devices.
> 
> At the same time also disable the venus node by default in the dtsi,
> like it's done on other SoCs.
> 
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 8 ++++++++
>  arch/arm64/boot/dts/qcom/sc7280.dtsi               | 6 ++----
>  2 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
> index 5d462ae14ba1..cd491e46666d 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
> @@ -104,6 +104,14 @@ &scm {
>  	dma-coherent;
>  };
>  
> +&venus {
> +	status = "okay";
> +
> +	video-firmware {
> +		iommus = <&apps_smmu 0x21a2 0x0>;
> +	};
> +};
> +
>  &watchdog {
>  	status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 66f1eb83cca7..fa53f54d4675 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -3740,6 +3740,8 @@ venus: video-codec@...0000 {
>  				 <&apps_smmu 0x2184 0x20>;
>  			memory-region = <&video_mem>;
>  
> +			status = "disabled";
> +
>  			video-decoder {
>  				compatible = "venus-decoder";
>  			};
> @@ -3748,10 +3750,6 @@ video-encoder {
>  				compatible = "venus-encoder";
>  			};
>  
> -			video-firmware {
> -				iommus = <&apps_smmu 0x21a2 0x0>;
> -			};
> -
>  			venus_opp_table: opp-table {
>  				compatible = "operating-points-v2";
>  
> 
Changes look good. Is this tested on SC7280 ?

Regards,
Vikash