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

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Date:   Fri, 29 Sep 2023 09:43:45 +0100
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        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 2/3] arm64: dts: qcom: sc7280: Move video-firmware to
 chrome-common

On 29/09/2023 09:38, Luca Weiss wrote:
> If the video-firmware node is present, the venus driver assumes we're on
> a non-TZ system. Move the video-firmware node to chrome-common.dtsi so
> we can use venus on a TZ board.
> 
> At the same time let's disable the venus node by default as is custom on
> such nodes.
> 
> 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";
>   
> 

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>