linux-kernel - Re: [PATCH v2] arm64: dts: qcom: sm8550: add Soundwire controllers

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Date:   Tue, 4 Apr 2023 19:55:24 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] arm64: dts: qcom: sm8550: add Soundwire controllers



On 4.04.2023 09:39, Krzysztof Kozlowski wrote:
> Add nodes for LPASS Soundwire v2.0.0 controllers.  Use labels with
> indices matching downstream DTS, to make any comparisons easier.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 
> ---
> 
> Changes since v1:
> 1. Correct IO range length.
> 
> The bindings and driver are here:
> https://lore.kernel.org/linux-arm-msm/20230403132503.62090-1-krzysztof.kozlowski@linaro.org/T/#t
> ---
>  arch/arm64/boot/dts/qcom/sm8550.dtsi | 109 +++++++++++++++++++++++++++
>  1 file changed, 109 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> index dc6150e97d46..14e4de7a1a0e 100644
> --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
> @@ -2004,6 +2004,33 @@ lpass_wsa2macro: codec@...0000 {
>  			#sound-dai-cells = <1>;
>  		};
>  
> +		/* WSA2 */
> +		swr3: soundwire-controller@...0000 {
> +			compatible = "qcom,soundwire-v2.0.0";
> +			reg = <0 0x06ab0000 0 0x10000>;
> +			interrupts = <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&lpass_wsa2macro>;
> +			clock-names = "iface";
> +
Any reason this and swr0 have comments instead of labels?

> +			qcom,din-ports = <4>;
> +			qcom,dout-ports = <9>;
> +
> +			qcom,ports-sinterval =		<0x07 0x1f 0x3f 0x07 0x1f 0x3f 0x18f 0xff 0xff 0x0f 0x0f 0xff 0x31f>;
> +			qcom,ports-offset1 =		/bits/ 8 <0x01 0x03 0x05 0x02 0x04 0x15 0x00 0xff 0xff 0x06 0x0d 0xff 0x00>;
> +			qcom,ports-offset2 =		/bits/ 8 <0xff 0x07 0x1f 0xff 0x07 0x1f 0xff 0xff 0xff 0xff 0xff 0xff 0xff>;
> +			qcom,ports-hstart =		/bits/ 8 <0xff 0xff 0xff 0xff 0xff 0xff 0x08 0xff 0xff 0xff 0xff 0xff 0x0f>;
> +			qcom,ports-hstop =		/bits/ 8 <0xff 0xff 0xff 0xff 0xff 0xff 0x08 0xff 0xff 0xff 0xff 0xff 0x0f>;
> +			qcom,ports-word-length =	/bits/ 8 <0xff 0xff 0xff 0xff 0xff 0xff 0x08 0xff 0xff 0xff 0xff 0xff 0x18>;
> +			qcom,ports-block-pack-mode =	/bits/ 8 <0x00 0x01 0x01 0x00 0x01 0x01 0x00 0x00 0x00 0x01 0x01 0x00 0x00>;
> +			qcom,ports-block-group-count =	/bits/ 8 <0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff>;
> +			qcom,ports-lane-control =	/bits/ 8 <0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff 0xff>;
> +
> +			#address-cells = <2>;
> +			#size-cells = <0>;
> +			#sound-dai-cells = <1>;
> +			status = "disabled";
> +		};
[...]


> +		swr2: soundwire-controller@...0000 {
> +			compatible = "qcom,soundwire-v2.0.0";
> +			reg = <0 0x06d30000 0 0x10000>;
> +			interrupts-extended = <&intc GIC_SPI 496 IRQ_TYPE_LEVEL_HIGH>,
> +					      <&intc GIC_SPI 520 IRQ_TYPE_LEVEL_HIGH>;
There's no different interrupt-parent, so -extended seems excessive.
Unless that was maybe supposed to use some PDC-mapped irq?

Konrad
> +			interrupt-names = "core", "wakeup";
> +
> +			clocks = <&lpass_vamacro>;
> +			clock-names = "iface";
> +			label = "TX";
> +
> +			qcom,din-ports = <4>;
> +			qcom,dout-ports = <0>;
> +			qcom,ports-sinterval-low =	/bits/ 8 <0x01 0x01 0x03 0x03>;
> +			qcom,ports-offset1 =		/bits/ 8 <0x00 0x00 0x01 0x01>;
> +			qcom,ports-offset2 =		/bits/ 8 <0x00 0x00 0x00 0x00>;
> +			qcom,ports-hstart =		/bits/ 8 <0xff 0xff 0xff 0xff>;
> +			qcom,ports-hstop =		/bits/ 8 <0xff 0xff 0xff 0xff>;
> +			qcom,ports-word-length =	/bits/ 8 <0xff 0xff 0xff 0xff>;
> +			qcom,ports-block-pack-mode =	/bits/ 8 <0xff 0xff 0xff 0xff>;
> +			qcom,ports-block-group-count =	/bits/ 8 <0xff 0xff 0xff 0xff>;
> +			qcom,ports-lane-control =	/bits/ 8 <0x01 0x02 0x00 0x00>;
> +
> +			#address-cells = <2>;
> +			#size-cells = <0>;
> +			#sound-dai-cells = <1>;
> +			status = "disabled";
> +		};
> +
>  		lpass_vamacro: codec@...4000 {
>  			compatible = "qcom,sm8550-lpass-va-macro";
>  			reg = <0 0x06d44000 0 0x1000>;