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Message-ID: <2e1cd06b-20c3-476c-a8fa-44f398c39857@quicinc.com>
Date: Fri, 3 Jan 2025 19:30:58 +0800
From: Yuanfang Zhang <quic_yuanfang@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
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: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: Add coresight node for SM8650
On 12/13/2024 4:07 PM, Krzysztof Kozlowski wrote:
> On 10/12/2024 09:23, Yuanfang Zhang wrote:
>> Add coresight components: Funnel, ETE and ETF for SM8650.
>>
>> Signed-off-by: Yuanfang Zhang <quic_yuanfang@...cinc.com>
>> ---
>
> Please use subject prefixes matching the subsystem. You can get them for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching. For bindings, the preferred subjects are
> explained here:
> https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters
>
>> Changes in v2:
>> - Update compatible for funnel and etf.
>> - remove unnecessary property: reg-names and arm,primecell-periphid.
>> - Link to v1: https://lore.kernel.org/r/20241210-sm8650-cs-dt-v1-1-269693451584@quicinc.com
>> ---
>> arch/arm64/boot/dts/qcom/sm8650.dtsi | 165 +++++++++++++++++++++++++++++++++++
>> 1 file changed, 165 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> index 25e47505adcb790d09f1d2726386438487255824..76620d478e872a2b725693dc32364e2a183572b7 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sm8650.dtsi
>> @@ -5654,6 +5654,171 @@ compute-cb@12 {
>> };
>> };
>> };
>> +
>> + ete0 {
>
> ete or ete-0
As node name pattern: "^ete([0-9a-f]+)$" in arm,embedded-trace-extension.yaml,
then name it ete0.
>
>> + compatible = "arm,embedded-trace-extension";
>> +
>> + cpu = <&cpu0>;
>> + qcom,skip-power-up;
>> +
>> + out-ports {
>> + port {
>> + ete0_out_funnel_ete: endpoint {
>> + remote-endpoint = <&funnel_ete_in_ete0>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + funnel_ete {
>
>
> Follow DTS coding style. Don't send us your downstream code.
>
>> + compatible = "arm,coresight-static-funnel";
>> +
>> + in-ports {
>> + port@0 {
>> + reg = <0>;
>> +
>> + funnel_ete_in_ete0: endpoint {
>> + remote-endpoint = <&ete0_out_funnel_ete>;
>> + };
>> + };
>> + };
>> +
>> + out-ports {
>> + port {
>> + funnel_ete_out_funnel_apss: endpoint {
>> + remote-endpoint = <&funnel_apss_in_funnel_ete>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + funnel@...10000 {
>
> This is all wrongly placed. And tools would tell you that. But anyway,
> do not introduce different style. Look how all other nodes are placed.
>
> It does not look like you tested the DTS against bindings. Please run
> `make dtbs_check W=1` (see
> Documentation/devicetree/bindings/writing-schema.rst or
> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
> for instructions).
Done.
>
>
>
>> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
>> +
>> + reg = <0x0 0x13810000 0x0 0x1000>;
>> +
>> + clocks = <&aoss_qmp>;
>> + clock-names = "apb_pclk";
>> +
>> + in-ports {
>> + port@0 {
>> + reg = <0>;
>> +
>> + funnel_apss_in_funnel_ete: endpoint {
>> + remote-endpoint = <&funnel_ete_out_funnel_apss>;
>> + };
>> + };
>> + };
>> +
>> + out-ports {
>> + port {
>> + funnel_apss_out_funnel_in1: endpoint {
>> + remote-endpoint = <&funnel_in1_in_funnel_apss>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + funnel@...42000 {
>> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
>> +
>> + reg = <0x0 0x10042000 0x0 0x1000>;
>> +
>> + clocks = <&aoss_qmp>;
>> + clock-names = "apb_pclk";
>> +
>> + in-ports {
>> + port@4 {
>> + reg = <4>;
>> +
>> + funnel_in1_in_funnel_apss: endpoint {
>> + remote-endpoint = <&funnel_apss_out_funnel_in1>;
>> + };
>> + };
>> + };
>> +
>> + out-ports {
>> + port {
>> + funnel_in1_out_funnel_qdss: endpoint {
>> + remote-endpoint = <&funnel_qdss_in_funnel_in1>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + funnel@...45000 {
>> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
>> +
>> + reg = <0x0 0x10045000 0x0 0x1000>;
>> +
>> + clocks = <&aoss_qmp>;
>> + clock-names = "apb_pclk";
>> +
>> + in-ports {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + port@1 {
>> + reg = <1>;
>> +
>> + funnel_qdss_in_funnel_in1: endpoint {
>> + remote-endpoint = <&funnel_in1_out_funnel_qdss>;
>> + };
>> + };
>> + };
>> +
>> + out-ports {
>> + port {
>> + funnel_qdss_out_funnel_aoss: endpoint {
>> + remote-endpoint = <&funnel_aoss_in_funnel_qdss>;
>> + };
>> + };
>> + };
>> + };
>> +
>> + funnel@...04000 {
>> + compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
>> +
>> + reg = <0x0 0x10b04000 0x0 0x1000>;
>> +
>> + clocks = <&aoss_qmp>;
>> + clock-names = "apb_pclk";
>> +
>> + in-ports {
>
> It does not look like you tested the DTS against bindings. Please run
> `make dtbs_check W=1` (see
> Documentation/devicetree/bindings/writing-schema.rst or
> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
> for instructions).
Done.
>
>> + port@7 {
>> + reg = <7>;
>> +
>> + funnel_aoss_in_funnel_qdss: endpoint {
>> + remote-endpoint = <&funnel_qdss_out_funnel_aoss>;
>> + };
>> + };
>> + };
>> +
> Best regards,
> Krzysztof
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