linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom/sdm845-shift-axolotl: Add audio support

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Date:   Thu, 9 Jun 2022 14:14:46 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Alexander Martinz <amartinz@...ftphones.com>,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     phone-devel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.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,
        Dylan Van Assche <me@...anvanassche.be>
Subject: Re: [PATCH 2/2] arm64: dts: qcom/sdm845-shift-axolotl: Add audio
 support

On 09/06/2022 11:54, Alexander Martinz wrote:
> This patch adds audio support for the SHIFT6mq phone.
> 
> The primary microphone and headphone jack are handled by the
> SDM845 sound card and WCD9340 codec.
> 
> The primary speaker needs to go through the TFA9890 speaker
> amplifier.

Thank you for your patch. There is something to discuss/improve.

> 
> Signed-off-by: Alexander Martinz <amartinz@...ftphones.com>
> Tested-by: Dylan Van Assche <me@...anvanassche.be>

Same problem.

> ---
>  .../boot/dts/qcom/sdm845-shift-axolotl.dts    | 141 ++++++++++++++++++
>  1 file changed, 141 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> index fa72f23ef0c2..8c4967d6d0e3 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
> @@ -8,6 +8,8 @@
>  
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
> +#include <dt-bindings/sound/qcom,q6asm.h>
>  #include "sdm845.dtsi"
>  #include "pm8998.dtsi"
>  #include "pmi8998.dtsi"
> @@ -492,6 +494,19 @@ touchscreen@38 {
>  	};
>  };
>  
> +&i2c11 {
> +	status = "okay";
> +	clock-frequency = <400000>;
> +
> +	tfa9890_codec: tfa9890@34 {

Generic node names please, so I guess it is: codec or audio-codec

> +		compatible = "nxp,tfa9890";
> +		reg = <0x34>;
> +		vddd-supply = <&vreg_s4a_1p8>;
> +		reset-gpio = <&tlmm 7 0>;
> +		#sound-dai-cells = <1>;
> +	};
> +};
> +
>  &ipa {
>  	status = "okay";
>  
> @@ -530,6 +545,27 @@ volume_down_resin: resin {
>  	};
>  };
>  
> +&q6afedai {
> +	qi2s@22 {
> +		reg = <22>;
> +		qcom,sd-lines = <0>;
> +	};
> +};
> +
> +&q6asmdai {
> +	dai@0 {
> +		reg = <0>;
> +	};
> +
> +	dai@1 {
> +		reg = <1>;
> +	};
> +
> +	dai@2 {
> +		reg = <2>;
> +	};
> +};
> +
>  /*
>   * Prevent garbage data on bluetooth UART lines
>   */
> @@ -578,6 +614,84 @@ &qupv3_id_1 {
>  	status = "okay";
>  };
>  
> +&sound {
> +	model = "SHIFT6mq";
> +	compatible = "qcom,sdm845-sndcard";
> +	pinctrl-0 = <&quat_mi2s_active &quat_mi2s_sd0_active>;
> +	pinctrl-names = "default";
> +
> +	audio-routing = "RX_BIAS", "MCLK",
> +			"AMIC1", "MIC BIAS1",
> +			"AMIC2", "MIC BIAS2",
> +			"AMIC3", "MIC BIAS3";
> +
> +	mm1-dai-link {
> +		link-name = "MultiMedia1";
> +		cpu {
> +			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
> +		};
> +	};
> +
> +	mm2-dai-link {
> +		link-name = "MultiMedia2";
> +		cpu {
> +			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA2>;
> +		};
> +	};
> +
> +	mm3-dai-link {
> +		link-name = "MultiMedia3";
> +		cpu {
> +			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA3>;
> +		};
> +	};
> +
> +	speaker-dai-link {
> +		link-name = "Speaker Playback";
> +		codec {
> +			sound-dai = <&tfa9890_codec 0>;
> +		};
> +
> +		cpu {
> +			sound-dai = <&q6afedai QUATERNARY_MI2S_RX>;
> +		};
> +
> +		platform {
> +			sound-dai = <&q6routing>;
> +		};
> +	};
> +
> +	slim-dai-link {
> +		link-name = "SLIM Playback";
> +		codec {
> +			sound-dai = <&wcd9340 0>;
> +		};
> +
> +		cpu {
> +			sound-dai = <&q6afedai SLIMBUS_0_RX>;
> +		};
> +
> +		platform {
> +			sound-dai = <&q6routing>;
> +		};
> +	};
> +
> +	slimcap-dai-link {
> +		link-name = "SLIM Capture";
> +		codec {
> +			sound-dai = <&wcd9340 1>;
> +		};
> +
> +		cpu {
> +			sound-dai = <&q6afedai SLIMBUS_0_TX>;
> +		};
> +
> +		platform {
> +			sound-dai = <&q6routing>;
> +		};
> +	};
> +};
> +
>  &tlmm {
>  	gpio-reserved-ranges = <0 4>, <81 4>;
>  
> @@ -686,6 +800,15 @@ config {
>  			bias-pull-down;
>  		};
>  	};
> +
> +	wcd_intr_default: wcd_intr_default {

No underscores in node names. Instead hyphens.

> +		pins = <54>;
> +		function = "gpio";
> +
> +		input-enable;
> +		bias-pull-down;
> +		drive-strength = <2>;
> +	};
>  };


Best regards,
Krzysztof