linux-kernel - Re: [PATCH v9 04/12] arm64: dts: qcom: sc7280: Add wcd9385 codec node for CRD 1.0 and CRD 2.0

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Message-ID: <YmGJ4sjTDo00/Tbl@google.com>
Date:   Thu, 21 Apr 2022 09:44:18 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
Cc:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.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,
        Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH v9 04/12] arm64: dts: qcom: sc7280: Add wcd9385 codec
 node for CRD 1.0 and CRD 2.0

On Thu, Apr 21, 2022 at 08:17:31PM +0530, Srinivasa Rao Mandadapu wrote:

> arm64: dts: qcom: sc7280: Add wcd9385 codec node for CRD 1.0 and CRD 2.0

nit: and IDP boards?

> Add wcd9385 codec node for audio use case on sc7280 based platforms
> of revision 3 and 4 (aka CRD 1.0 and 2.0).
> Add tlmm gpio property for switching CTIA/OMTP Headset.
> 
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts |  8 +++++
>  arch/arm64/boot/dts/qcom/sc7280-idp.dtsi   | 50 ++++++++++++++++++++++++++++++
>  2 files changed, 58 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts b/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
> index 344338a..462d655 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
> +++ b/arch/arm64/boot/dts/qcom/sc7280-crd-r3.dts
> @@ -87,6 +87,14 @@ ap_ts_pen_1v8: &i2c13 {
>  	pins = "gpio51";
>  };
>  
> +&wcd938x {
> +	pinctrl-names = "default", "sleep", "us_euro_hs_sel";
> +	pinctrl-0 = <&wcd_reset_n>;
> +	pinctrl-1 = <&wcd_reset_n_sleep>;
> +	pinctrl-2 = <&us_euro_hs_sel>;

Which driver is supposed to select 'us_euro_hs_sel'?

I suppose 'us_euro_hs_sel' should always be configured in the same way,
so you probably want this:

	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&wcd_reset_n>, <&us_euro_hs_sel>;
	pinctrl-1 = <&wcd_reset_n_sleep>, <&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-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index 6cb5fc4..b711ad0 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -20,6 +20,34 @@
>  		serial1 = &uart7;
>  	};
>  
> +	wcd938x: audio-codec-1 {
> +		compatible = "qcom,wcd9385-codec";
> +		pinctrl-names = "default", "sleep";
> +		pinctrl-0 = <&wcd_reset_n>;
> +		pinctrl-1 = <&wcd_reset_n_sleep>;
> +
> +		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>;
> +		#sound-dai-cells = <1>;
> +	};
> +
>  	gpio-keys {
>  		compatible = "gpio-keys";
>  		label = "gpio-keys";
> @@ -678,6 +706,28 @@
>  		function = "gpio";
>  		bias-pull-down;
>  	};
> +
> +	us_euro_hs_sel: us-euro-hs-sel {
> +		pins = "gpio81";
> +		function = "gpio";
> +		bias-pull-down;
> +		drive-strength = <2>;
> +	};

This config is only used by the CRD, move it to sc7280-crd-r3.dts

> +
> +	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;
> +	};
>  };
>  
>  &remoteproc_wpss {
> -- 
> 2.7.4
>