linux-kernel - Re: [PATCH] arm64: dts: qcom: sa8775p: rename bus clock to follow the bindings

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Message-ID: <74f7053c-10d6-4aca-a87a-0ac7f55c2f1f@oss.qualcomm.com>
Date: Sat, 14 Jun 2025 22:10:59 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Mahadevan <quic_mahap@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sa8775p: rename bus clock to follow the
 bindings

On 6/2/25 9:23 AM, Dmitry Baryshkov wrote:
> DT bindings for the DPU SA8775P declare the first clock to be "nrt_bus",
> not just "bus". Fix the DT file accordingly.
> 
> Fixes: 2f39d2d46c73 ("arm64: dts: qcom: sa8775p: add display dt nodes for MDSS0 and DPU")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p.dtsi | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 45f536633f6449e6ce6bb0109b5446968921f684..7eac6919b2992a3512df1e042af22d0cbad04853 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -4122,7 +4122,7 @@ mdss0_mdp: display-controller@...1000 {
>  					 <&dispcc0 MDSS_DISP_CC_MDSS_MDP_LUT_CLK>,
>  					 <&dispcc0 MDSS_DISP_CC_MDSS_MDP_CLK>,
>  					 <&dispcc0 MDSS_DISP_CC_MDSS_VSYNC_CLK>;
> -				clock-names = "bus",
> +				clock-names = "nrt_bus",

Is it the "nrt" clock though, and not "rt"?

There used to be a split for non-/real-time use cases, but
I have little idea about the specifics.

Konrad