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Date:   Wed, 13 Apr 2022 12:35:15 -0700
From:   Matthias Kaehlcke <mka@chromium.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Cc:     agross@kernel.org, bjorn.andersson@linaro.org, robh+dt@kernel.org,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, quic_rohkumar@quicinc.com,
        srinivas.kandagatla@linaro.org, dianders@chromium.org,
        swboyd@chromium.org, judyhsiao@chromium.org,
        Venkata Prasad Potturu <quic_potturu@quicinc.com>
Subject: Re: [PATCH v7 2/4] arm64: dts: qcom: sc7280: Add nodes for wcd9385
 and max98360a codec
Message-ID: <Ylcl830KnrzXHpSx@google.com>
References: <1649863277-31615-1-git-send-email-quic_srivasam@quicinc.com>
 <1649863277-31615-3-git-send-email-quic_srivasam@quicinc.com>
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On Wed, Apr 13, 2022 at 08:51:15PM +0530, Srinivasa Rao Mandadapu wrote:
> Add wcd938x and  max98360a codecs for audio use case on
> sc7280 based platforms.
> Add tlmm gpio property in wcd938x node for switching CTIA/OMTP Headset.
> Add amp_en node for  max98360a codec.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
> Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
> Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
> ---

Applicable to all you patches: a per-patch change log would be really
nice for reviewers. It can help them to focus on the parts that have
actually changed with respect to earlier revisions they might have
already reviewed.

>  arch/arm64/boot/dts/qcom/sc7280-crd.dts        |  6 ++
>  arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi |  8 +++
>  arch/arm64/boot/dts/qcom/sc7280-idp.dtsi       | 94 ++++++++++++++++++++++++++
>  3 files changed, 108 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-crd.dts
> index e2efbdd..b944366 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7280-crd.dts

Your branch needs a refresh, this file doesn't exist anymore.

You'll want to change sc7280-crd-r3.dts for the CRD <= 2.x and
sc7280-herobrine-crd.dts for the CRD >= 3.x

> @@ -84,6 +84,12 @@ ap_ts_pen_1v8: &i2c13 {
>  	pins = "gpio51";
>  };
>  
> +&wcd938x {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&us_euro_hs_sel>;
> +	us-euro-gpios = <&tlmm 81 GPIO_ACTIVE_HIGH>;
> +};
> +
>  &tlmm {
>  	tp_int_odl: tp-int-odl {
>  		pins = "gpio7";
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> index dc17f20..8e4f822 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
> @@ -20,6 +20,14 @@
>  #include "sc7280-chrome-common.dtsi"
>  
>  / {
> +	max98360a: audio-codec-0 {
> +		compatible = "maxim,max98360a";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&amp_en>;
> +		sdmode-gpios = <&tlmm 63 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <0>;
> +	};
> +

I agreed earlier that sorting by node name is correct, but that wasn't
entirely true. The nodes should be sorted by name within the 'device'
section, i.e. after the comment "/* BOARD-SPECIFIC TOP LEVEL NODES */".

>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index 110d9e9..6004c08 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -20,6 +20,41 @@
>  		serial1 = &uart7;
>  	};
>  
> +	max98360a: audio-codec-0 {
> +		compatible = "maxim,max98360a";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&amp_en>;
> +		sdmode-gpios = <&tlmm 63 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <0>;
> +	};
> +
> +	wcd938x: audio-codec-1 {
> +		compatible = "qcom,wcd9385-codec";
> +		#sound-dai-cells = <1>;
> +
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&wcd_reset_n>, <&wcd_reset_n_sleep>;

Shouldn't this be:

		pinctrl-names = "default", "sleep";
		pinctrl-0 = <&wcd_reset_n>;
		pinctrl-1 = <&wcd_reset_n_sleep>;

?

nit: make the ordering of properties (pinctrl, #sound-dai-cells) and
spacing within the node consistent for max98360a and wcd938x? Not
super-important, but since both are codecs and added by the same
patch, why not :)

> +		reset-gpios = <&tlmm 83 GPIO_ACTIVE_HIGH>;
> +
> +		qcom,rx-device = <&wcd_rx>;
> +		qcom,tx-device = <&wcd_tx>;
> +
> +		vdd-rxtx-supply = <&vreg_l18b_1p8>;
> +		vdd-io-supply = <&vreg_l18b_1p8>;
> +		vdd-buck-supply = <&vreg_l17b_1p8>;
> +		vdd-mic-bias-supply = <&vreg_bob>;
> +
> +		qcom,micbias1-microvolt = <1800000>;
> +		qcom,micbias2-microvolt = <1800000>;
> +		qcom,micbias3-microvolt = <1800000>;
> +		qcom,micbias4-microvolt = <1800000>;
> +
> +		qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000
> +							  500000 500000 500000>;
> +		qcom,mbhc-headset-vthreshold-microvolt = <1700000>;
> +		qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
> +	};
> +
>  	gpio-keys {
>  		compatible = "gpio-keys";
>  		label = "gpio-keys";
> @@ -238,6 +273,19 @@
>  	modem-init;
>  };
>  
> +&lpass_rx_macro {
> +	status = "okay";
> +};
> +
> +&lpass_tx_macro {
> +	status = "okay";
> +};
> +
> +&lpass_va_macro {
> +	status = "okay";
> +	vdd-micb-supply = <&vreg_bob>;
> +};
> +
>  &pcie1 {
>  	status = "okay";
>  	perst-gpio = <&tlmm 2 GPIO_ACTIVE_LOW>;
> @@ -298,6 +346,24 @@
>  	cd-gpios = <&tlmm 91 GPIO_ACTIVE_LOW>;
>  };
>  
> +&swr0 {
> +	wcd_rx: codec@0,4 {
> +		compatible = "sdw20217010d00";
> +		reg = <0 4>;
> +		#sound-dai-cells = <1>;
> +		qcom,rx-port-mapping = <1 2 3 4 5>;
> +	};
> +};
> +
> +&swr1 {
> +	wcd_tx: codec@0,3 {
> +		compatible = "sdw20217010d00";
> +		reg = <0 3>;
> +		#sound-dai-cells = <1>;
> +		qcom,tx-port-mapping = <1 2 3 4>;
> +	};
> +};
> +
>  &uart5 {
>  	compatible = "qcom,geni-debug-uart";
>  	status = "okay";
> @@ -561,6 +627,12 @@
>  };
>  
>  &tlmm {
> +	amp_en: amp-en {
> +		pins = "gpio63";
> +		bias-pull-down;
> +		drive-strength = <2>;
> +	};
> +
>  	bt_en: bt-en {
>  		pins = "gpio85";
>  		function = "gpio";
> @@ -643,5 +715,27 @@
>  		function = "gpio";
>  		bias-pull-down;
>  	};
> +
> +	us_euro_hs_sel: us-euro-hs-sel {
> +		pins = "gpio81";
> +		function = "gpio";
> +		bias-pull-down;
> +		drive-strength = <2>;
> +	};
> +
> +	wcd_reset_n: wcd-reset-n {
> +		pins = "gpio83";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		output-high;
> +	};
> +
> +	wcd_reset_n_sleep: wcd-reset-n-sleep {
> +		pins = "gpio83";
> +		function = "gpio";
> +		drive-strength = <8>;
> +		bias-disable;
> +		output-low;
> +	};
>  };
>  
> -- 
> 2.7.4
>