linux-kernel - Re: [PATCH] arm64: dts: qcom: Fix the warnings from coresight bindings

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Message-ID: <47406b19-811f-47ab-8c08-dd8c4cc5d8bd@linaro.org>
Date:   Fri, 24 Nov 2023 08:50:49 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Mao Jinlong <quic_jinlmao@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Yuanfang Zhang <quic_yuanfang@...cinc.com>,
        Tao Zhang <quic_taozha@...cinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: Fix the warnings from coresight
 bindings

On 24/11/2023 07:17, Mao Jinlong wrote:
> Fix all warnings in Qualcomm boards coming from Coresight bindings.

One logical thing, one patch. That applies not only to Linux kernel, but
to all software projects.

> 
> Signed-off-by: Mao Jinlong <quic_jinlmao@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/msm8996.dtsi | 26 ----------------------
>  arch/arm64/boot/dts/qcom/msm8998.dtsi | 32 +++++++++++++++++----------
>  arch/arm64/boot/dts/qcom/sdm845.dtsi  |  5 +----
>  arch/arm64/boot/dts/qcom/sm8150.dtsi  |  5 +----
>  arch/arm64/boot/dts/qcom/sm8250.dtsi  | 24 ++++----------------
>  5 files changed, 26 insertions(+), 66 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> index 6ba9da9e6a8b..e42c22b26adc 100644
> --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
> @@ -2637,24 +2637,6 @@ funnel1_out: endpoint {
>  			};
>  		};
>  
> -		funnel@...3000 {
> -			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
> -			reg = <0x3023000 0x1000>;
> -
> -			clocks = <&rpmcc RPM_QDSS_CLK>, <&rpmcc RPM_QDSS_A_CLK>;
> -			clock-names = "apb_pclk", "atclk";
> -
> -
> -			out-ports {
> -				port {
> -					funnel2_out: endpoint {
> -						remote-endpoint =
> -						  <&merge_funnel_in2>;
> -					};
> -				};
> -			};
> -		};

Why do you remove nodes? How is this anyhow related to commit msg?
Nothing here is explained.

> -
>  		funnel@...5000 {
>  			compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
>  			reg = <0x3025000 0x1000>;
> @@ -2681,14 +2663,6 @@ merge_funnel_in1: endpoint {
>  						  <&funnel1_out>;
>  					};
>  				};
> -
> -				port@2 {
> -					reg = <2>;
> -					merge_funnel_in2: endpoint {
> -						remote-endpoint =
> -						  <&funnel2_out>;
> -					};

Why?

> -				};
>  			};
>  
>  			out-ports {
> diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> index b485bf925ce6..ebc5ba1b369e 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> @@ -2031,9 +2031,11 @@ etm5: etm@...0000 {
>  
>  			cpu = <&CPU4>;
>  
> -			port {
> -				etm4_out: endpoint {
> -					remote-endpoint = <&apss_funnel_in4>;
> +			out-ports {
> +				port {

So you want to say out-ports is missing? Commit msg is really not
explaining anything.

> +					etm4_out: endpoint {
> +						remote-endpoint = <&apss_funnel_in4>;
> +					};
>  				};


Best regards,
Krzysztof