Re: [PATCH v5 6/6] arm64: dts: ti: k3-am62a7-sk: Enable audio on AM62A

[Jayesh Choudhary]

On 13/03/23 20:19, Jai Luthra wrote:
> Add nodes for audio codec and sound card, enable the audio serializer
> (McASP1) under use and update pinmux.
>
> Signed-off-by: Jai Luthra <j-luthra@xxxxxx>
> ---
>   arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 77 +++++++++++++++++++++++++++++++++
>   1 file changed, 77 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 063e69e45163..1775ed154aff 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -122,6 +122,41 @@ led-0 {
>   			default-state = "off";
>   		};
>   	};
> +
> +	tlv320_mclk: clk-0 {
> +		#clock-cells = <0>;
> +		compatible = "fixed-clock";
> +		clock-frequency = <12288000>;
> +	};
> +
> +	codec_audio: sound {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "AM62Ax-SKEVM";
> +		simple-audio-card,widgets =
> +			"Headphone",	"Headphone Jack",
> +			"Line",	"Line In",
> +			"Microphone",	"Microphone Jack";
> +		simple-audio-card,routing =
> +			"Headphone Jack",	"HPLOUT",
> +			"Headphone Jack",	"HPROUT",
> +			"LINE1L",		"Line In",
> +			"LINE1R",		"Line In",
> +			"MIC3R",		"Microphone Jack",
> +			"Microphone Jack",	"Mic Bias";
> +		simple-audio-card,format = "dsp_b";
> +		simple-audio-card,bitclock-master = <&sound_master>;
> +		simple-audio-card,frame-master = <&sound_master>;
> +		simple-audio-card,bitclock-inversion;
> +
> +		simple-audio-card,cpu {
> +			sound-dai = <&mcasp1>;
> +		};
> +
> +		sound_master: simple-audio-card,codec {
> +			sound-dai = <&tlv320aic3106>;
> +			clocks = <&tlv320_mclk>;
> +		};
> +	};
>   };
>   
>   &main_pmx0 {
> @@ -200,6 +235,15 @@ AM62AX_IOPAD(0x130, PIN_INPUT, 0) /* (AB17) RGMII1_TXC */
>   			AM62AX_IOPAD(0x12c, PIN_INPUT, 0) /* (W16) RGMII1_TX_CTL */
>   		>;
>   	};
> +
> +	main_mcasp1_pins_default: main-mcasp1-pins-default {
> +		pinctrl-single,pins = <
> +			AM62AX_IOPAD(0x090, PIN_INPUT, 2) /* (L19) GPMC0_BE0n_CLE.MCASP1_ACLKX */
> +			AM62AX_IOPAD(0x098, PIN_INPUT, 2) /* (R18) GPMC0_WAIT0.MCASP1_AFSX */
> +			AM62AX_IOPAD(0x08c, PIN_OUTPUT, 2) /* (K19) GPMC0_WEn.MCASP1_AXR0 */
> +			AM62AX_IOPAD(0x084, PIN_INPUT, 2) /* (L18) GPMC0_ADVn_ALE.MCASP1_AXR2 */
> +		>;
> +	};
>   };
>   
>   &main_i2c0 {
> @@ -234,6 +278,19 @@ exp1: gpio@22 {
>   				   "MCASP1_FET_SEL", "UART1_FET_SEL",
>   				   "PD_I2C_IRQ", "IO_EXP_TEST_LED";
>   	};
> +
> +	tlv320aic3106: audio-codec@1b {
> +		#sound-dai-cells = <0>;
> +		compatible = "ti,tlv320aic3106";
> +		reg = <0x1b>;
> +		ai3x-micbias-vg = <1>;		/* 2.0V */
> +		status = "okay";

No need for status property here I guess????

> +
> +		/* Regulators */
> +		AVDD-supply = <&vcc_3v3_sys>;
> +		IOVDD-supply = <&vcc_3v3_sys>;
> +		DRVDD-supply = <&vcc_3v3_sys>;

DVDD 1.8V supply here looks missing???

Reviewed-by: Jayesh Choudhary <j-choudhary@xxxxxx>

> +	};
>   };
>   
>   &sdhci1 {
> @@ -302,3 +359,23 @@ cpsw3g_phy0: ethernet-phy@0 {
>   		ti,min-output-impedance;
>   	};
>   };
> +
> +&mcasp1 {
> +	status = "okay";
> +	#sound-dai-cells = <0>;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mcasp1_pins_default>;
> +
> +	op-mode = <0>;          /* MCASP_IIS_MODE */
> +	tdm-slots = <2>;
> +
> +	serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
> +	       1 0 2 0
> +	       0 0 0 0
> +	       0 0 0 0
> +	       0 0 0 0
> +	>;
> +	tx-num-evt = <32>;
> +	rx-num-evt = <32>;
> +};