linux-kernel - Re: [PATCH] arm64: dts: qcom: Add coresight nodes for QCS615

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Message-ID: <69be09ec-e9a5-4fb6-890e-74a65f3ce404@oss.qualcomm.com>
Date: Fri, 25 Oct 2024 20:47:49 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Jie Gan <quic_jiegan@...cinc.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>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Tingwei Zhang <quic_tingweiz@...cinc.com>,
        Jinlong Mao <quic_jinlmao@...cinc.com>,
        Tao Zhang <quic_taozha@...cinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: Add coresight nodes for QCS615

On 17.10.2024 5:00 AM, Jie Gan wrote:
> Add following coresight components on QCS615, EUD, TMC/ETF, TPDM, dynamic
> Funnel, TPDA, Replicator and ETM.
> 
> Signed-off-by: Jie Gan <quic_jiegan@...cinc.com>
> ---
> Already checked by command:dtbs_check W=1.
> 
> Dependencies:
> 1. Depends on qcs615 base dtsi change:
> https://lore.kernel.org/all/20240926-add_initial_support_for_qcs615-v3-5-e37617e91c62@quicinc.com/
> 2. Depends on qcs615 AOSS_QMP change:
> https://lore.kernel.org/linux-arm-msm/20241017025313.2028120-4-quic_chunkaid@quicinc.com/
> ---
>  arch/arm64/boot/dts/qcom/qcs615.dtsi | 1632 ++++++++++++++++++++++++++
>  1 file changed, 1632 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> index 856b40e20cf3..87cca5de018e 100644
> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> @@ -202,6 +202,18 @@ l3_0: l3-cache {
>  		};
>  	};
>  
> +	dummy_eud: dummy_sink {

Node names (after the ':' and before the '{' signs) can't contain
underscores, use '-' instead.

[...]

> +		stm@...2000 {
> +			compatible = "arm,coresight-stm", "arm,primecell";
> +			reg = <0x0 0x6002000 0x0 0x1000>,

Please pad the non-zero address part to 8 hex digits with leading
zeroes, across the board

This looks like a lot of nodes, all enabled by default. Will this run
on a production-fused device?

Konrad