Re: [PATCH] arm64: dts: imx8mp-beacon-kit: Enable WM8962 Audio CODEC

[Shawn Guo]

On Sun, May 21, 2023 at 06:09:02PM -0500, Adam Ford wrote:
> The baseboard has an WM8962 Audio CODEC connected to the SAI3
> peripheral.  The CODEC supports stereo in and out
> and a microphone input connected to the headphone jack.
> Route this CODEC through the simple-audio-card driver.
> 
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
> index cdae45a48c2c..3480fb522230 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-kit.dts
> @@ -118,6 +118,15 @@ pcie0_refclk: clock-pcie {
>  		clock-frequency = <100000000>;
>  	};
>  
> +	reg_audio: regulator-wm8962 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "3v3_aud";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		gpio = <&pca6416_1 11 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
>  	reg_usdhc2_vmmc: regulator-usdhc2 {
>  		compatible = "regulator-fixed";
>  		regulator-name = "VSD_3V3";
> @@ -137,6 +146,30 @@ reg_usb1_host_vbus: regulator-usb1-vbus {
>  		gpio = <&pca6416_1 0 GPIO_ACTIVE_HIGH>;
>  		enable-active-high;
>  	};
> +
> +	sound-wm8962 {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "wm8962";
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,widgets = "Headphone", "Headphones",
> +					    "Microphone", "Headset Mic",
> +					    "Speaker", "Speaker";
> +		simple-audio-card,routing = "Headphones", "HPOUTL",
> +					    "Headphones", "HPOUTR",
> +					    "Speaker", "SPKOUTL",
> +					    "Speaker", "SPKOUTR",
> +					    "Headset Mic", "MICBIAS",
> +					    "IN3R", "Headset Mic";

Have a newline between property list and child node.

> +		simple-audio-card,cpu {
> +			sound-dai = <&sai3>;
> +		};

Have a newline between nodes.

Shawn

> +		simple-audio-card,codec {
> +			sound-dai = <&wm8962>;
> +			clocks = <&clk IMX8MP_CLK_IPP_DO_CLKO1>;
> +			frame-master;
> +			bitclock-master;
> +		};
> +	};
>  };
>  
>  &ecspi2 {
> @@ -239,6 +272,34 @@ &i2c4 {
>  	clock-frequency = <384000>;
>  	status = "okay";
>  
> +	wm8962: audio-codec@1a {
> +		compatible = "wlf,wm8962";
> +		reg = <0x1a>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_wm8962>;
> +		clocks = <&clk IMX8MP_CLK_IPP_DO_CLKO1>;
> +		assigned-clocks = <&clk IMX8MP_CLK_IPP_DO_CLKO1>;
> +		assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
> +		assigned-clock-rates = <22576000>;
> +		DCVDD-supply = <&reg_audio>;
> +		DBVDD-supply = <&reg_audio>;
> +		AVDD-supply = <&reg_audio>;
> +		CPVDD-supply = <&reg_audio>;
> +		MICVDD-supply = <&reg_audio>;
> +		PLLVDD-supply = <&reg_audio>;
> +		SPKVDD1-supply = <&reg_audio>;
> +		SPKVDD2-supply = <&reg_audio>;
> +		gpio-cfg = <
> +			0x0000 /* 0:Default */
> +			0x0000 /* 1:Default */
> +			0x0000 /* 2:FN_DMICCLK */
> +			0x0000 /* 3:Default */
> +			0x0000 /* 4:FN_DMICCDAT */
> +			0x0000 /* 5:Default */
> +		>;
> +		#sound-dai-cells = <0>;
> +	};
> +
>  	pca6416: gpio@20 {
>  		compatible = "nxp,pcal6416";
>  		reg = <0x20>;
> @@ -315,6 +376,16 @@ &pcie_phy {
>  	status = "okay";
>  };
>  
> +&sai3 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_sai3>;
> +	assigned-clocks = <&clk IMX8MP_CLK_SAI3>;
> +	assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL2_OUT>;
> +	assigned-clock-rates = <12288000>;
> +	fsl,sai-mclk-direction-output;
> +	status = "okay";
> +};
> +
>  &snvs_pwrkey {
>  	status = "okay";
>  };
> @@ -477,6 +548,16 @@ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19	0x40
>  		>;
>  	};
>  
> +	pinctrl_sai3: sai3grp {
> +		fsl,pins = <
> +			MX8MP_IOMUXC_SAI3_TXFS__AUDIOMIX_SAI3_TX_SYNC	0xd6
> +			MX8MP_IOMUXC_SAI3_TXC__AUDIOMIX_SAI3_TX_BCLK	0xd6
> +			MX8MP_IOMUXC_SAI3_RXD__AUDIOMIX_SAI3_RX_DATA00	0xd6
> +			MX8MP_IOMUXC_SAI3_TXD__AUDIOMIX_SAI3_TX_DATA00	0xd6
> +			MX8MP_IOMUXC_SAI3_MCLK__AUDIOMIX_SAI3_MCLK	0xd6
> +		>;
> +	};
> +
>  	pinctrl_tpm: tpmgrp {
>  		fsl,pins = <
>  			MX8MP_IOMUXC_SAI1_RXFS__GPIO4_IO00	0x19 /* Reset */
> @@ -547,4 +628,10 @@ pinctrl_usdhc2_gpio: usdhc2gpiogrp {
>  			MX8MP_IOMUXC_SD2_CD_B__GPIO2_IO12	0x1c4
>  		>;
>  	};
> +
> +	pinctrl_wm8962: wm8962grp {
> +		fsl,pins = <
> +			MX8MP_IOMUXC_GPIO1_IO14__CCM_CLKO1	0x59
> +		>;
> +	};
>  };
> -- 
> 2.39.2
>