linux-kernel - Re: [PATCH v9 05/12] arm64: dts: qcom: sc7280: Add wcd9385 codec node for CRD 3.0/3.1

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Message-ID: <098cf844-c38b-3bbc-9e18-df6124d2c8d4@quicinc.com>
Date:   Fri, 22 Apr 2022 19:16:47 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     Matthias Kaehlcke <mka@...omium.org>
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 05/12] arm64: dts: qcom: sc7280: Add wcd9385 codec node
 for CRD 3.0/3.1


On 4/21/2022 10:27 PM, Matthias Kaehlcke wrote:
Thanks for your time Matthias!!!
> On Thu, Apr 21, 2022 at 08:17:32PM +0530, Srinivasa Rao Mandadapu wrote:
>> Add wcd9385 codec node for audio use case on CRD rev5 (aka CRD 3.0/3.1)
> nit: rev5+
Okay.
>> boards. 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-herobrine-crd.dts | 52 +++++++++++++++++++++++
>>   1 file changed, 52 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-crd.dts b/arch/arm64/boot/dts/qcom/sc7280-herobrine-crd.dts
>> index d0794f2..d6a3086 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-crd.dts
>> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-crd.dts
>> @@ -12,6 +12,36 @@
>>   / {
>>   	model = "Qualcomm Technologies, Inc. sc7280 CRD platform (rev5+)";
>>   	compatible = "google,hoglin", "qcom,sc7280";
>> +
>> +	wcd938x: audio-codec-1 {
> wcd9385 (same for the CRD <= 2.0, I missed it there).
Okay.
>
>> +		compatible = "qcom,wcd9385-codec";
>
>
>> +		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>;
> This looks wrong, see my comment on the CRD <= 2.0 patch
> (https://patchwork.kernel.org/project/linux-arm-msm/patch/1650552459-21077-5-git-send-email-quic_srivasam@quicinc.com/)
Okay. Will modify accordingly.
>
>> +
>> +		reset-gpios = <&tlmm 83 GPIO_ACTIVE_HIGH>;
>> +		us-euro-gpios = <&tlmm 81 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>;
>> +	};
> The wcd9385 is on the qcard, so I think this node should be added to
> sc7280-qcard.dtsi and be marked as "disabled". This file can then just
> set the status to "okay". Future boards that use the wcd could do the
> same, rather than adding a copy of this node to their .dts file.
Okay. Will move to qcard dtsi file.
>
>>   };
>>   
>>   /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */
>> @@ -345,4 +375,26 @@ ap_ts_pen_1v8: &i2c13 {
>>   			  "",
>>   			  "",
>>   			  "";
>> +
>> +	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;
>> +	};
> These are also on the qcard, please move the nodes to sc7280-qcard.dtsi
Okay.