linux-kernel - Re: [PATCH 3/7] arm64: dts: qcom: sc7280: audioreach: Add lpass pil node

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Date:   Fri, 23 Dec 2022 10:12:14 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>,
        agross@...nel.org, andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_rohkumar@...cinc.com, srinivas.kandagatla@...aro.org,
        dianders@...omium.org, swboyd@...omium.org, judyhsiao@...omium.org,
        konrad.dybcio@...aro.org
Subject: Re: [PATCH 3/7] arm64: dts: qcom: sc7280: audioreach: Add lpass pil
 node

On 22/12/2022 10:42, Srinivasa Rao Mandadapu wrote:
> Add lpass pil node for sc7280 based audioreach platforms.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Tested-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
> ---
> This patch depends on:
>     -- https://lore.kernel.org/linux-remoteproc/6e0590af-0bd1-cbef-c573-fa62b5bc9e63@quicinc.com/
> 
>  .../qcom/sc7280-herobrine-audioreach-wcd9385.dtsi  | 99 ++++++++++++++++++++++
>  1 file changed, 99 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
> index 1eac94e1..0ce8755 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audioreach-wcd9385.dtsi
> @@ -110,3 +110,102 @@
>  		};
>  	};
>  };
> +
> +&soc {
> +	qcom,lpass@...0000 {

Not correct name.

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

Additionally, why this is not part of SoC DTSI? Defining SoC nodes in
other DTSI files is not readable and not maintainable.

> +		compatible = "qcom,sc7280-adsp-pil";
> +		reg = <0 0x03000000 0 0x5000>,
> +			<0 0x0355b000 0 0x10>;

Misaligned.

> +
> +		reg-names = "qdsp6ss_base",
> +			"lpass_efuse";

Misaligned.

> +
> +		interrupts-extended = <&pdc 6 IRQ_TYPE_LEVEL_HIGH>,
> +					<&adsp_smp2p_in 0 0>,
> +					<&adsp_smp2p_in 1 0>,
> +					<&adsp_smp2p_in 2 0>,
> +					<&adsp_smp2p_in 3 0>,
> +					<&adsp_smp2p_in 7 0>;

Misaligned.

What are the trailing '0'?

> +
> +		interrupt-names = "wdog", "fatal", "ready",
> +			"handover", "stop-ack",  "shutdown-ack";
> +		qcom,qmp = <&aoss_qmp>;
> +
> +		clocks = <&rpmhcc RPMH_CXO_CLK>,
> +			<&gcc GCC_CFG_NOC_LPASS_CLK>,
> +			<&lpasscc LPASS_QDSP6SS_XO_CLK>,
> +			<&lpasscc LPASS_QDSP6SS_SLEEP_CLK>,
> +			<&lpasscc LPASS_QDSP6SS_CORE_CLK>;
> +
> +		clock-names = "xo", "gcc_cfg_noc_lpass",
> +				"lpass_qdsp6ss_xo",
> +				"lpass_qdsp6ss_sleep",
> +				"lpass_qdsp6ss_core";
> +
> +		iommus = <&apps_smmu 0x1800 0x0>;
> +
> +		power-domains =	<&rpmhpd SC7280_LCX>;
> +		power-domain-names = "lcx";
> +		required-opps = <&rpmhpd_opp_nom>;
> +
> +		resets = <&aoss_reset AOSS_CC_LPASS_RESTART>,
> +			<&pdc_reset PDC_AUDIO_SYNC_RESET>;
> +
> +		reset-names = "cc_lpass", "pdc_sync";
> +
> +		qcom,halt-regs = <&tcsr_1 0x3000 0x5000 0x8000 0x13000>;
> +
> +		memory-region = <&adsp_mem>;
> +
> +		status = "okay";

Why do you need this?
> +
> +		qcom,smem-states = <&adsp_smp2p_out 0>;
> +		qcom,smem-state-names = "stop";
> +
> +		glink-edge {
> +			interrupts-extended = <&ipcc IPCC_CLIENT_LPASS
> +						IPCC_MPROC_SIGNAL_GLINK_QMP
> +						IRQ_TYPE_EDGE_RISING>;
> +			mboxes = <&ipcc IPCC_CLIENT_LPASS
> +					IPCC_MPROC_SIGNAL_GLINK_QMP>;
> +
> +			label = "lpass";
> +			qcom,remote-pid = <2>;
> +
> +			gpr {
> +				compatible = "qcom,gpr";
> +				qcom,glink-channels = "adsp_apps";
> +				qcom,domain = <GPR_DOMAIN_ID_ADSP>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				qcom,intents = <512 20>;
> +
> +				q6apm: q6apm {

Does not look like you tested the DTS against bindings. Please run `make
dtbs_check` (see Documentation/devicetree/bindings/writing-schema.rst
for instructions).

It's not even passing regular test - build with W=1...

> +					reg = <GPR_APM_MODULE_IID>;

Where did you include file that define?

> +					compatible = "qcom,q6apm";
> +					#sound-dai-cells = <0>;
> +					q6apmdai: dais {
> +						compatible = "qcom,q6apm-dais";
> +						#sound-dai-cells = <1>;
> +						iommus = <&apps_smmu 0x1801 0x0>;
> +					};
> +

Best regards,
Krzysztof