linux-kernel - Re: [PATCH v5 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62 SK

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Date:   Wed, 15 Mar 2023 09:53:31 +0530
From:   Jayesh Choudhary <j-choudhary@...com>
To:     Jai Luthra <j-luthra@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Mark Brown <broonie@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62
 SK



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@...com>
> ---
>   arch/arm64/boot/dts/ti/k3-am625-sk.dts | 88 ++++++++++++++++++++++++++++++++++
>   1 file changed, 88 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> index 6bc7d63cf52f..3199042f3687 100644
> --- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
> @@ -141,6 +141,52 @@ vdd_sd_dv: regulator-4 {
>   			 <3300000 0x1>;
>   	};
>   
> +	vcc_1v8: regulator-5 {
> +		/* output of TPS6282518DMQ */
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc_1v8";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		vin-supply = <&vcc_3v3_sys>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
> +	tlv320_mclk: clk-0 {
> +		#clock-cells = <0>;
> +		compatible = "fixed-clock";
> +		clock-frequency = <12288000>;
> +	};
> +
> +	sound {

Should we put label 'codec_audio' here similar to am62a7-sk???

> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "AM62x-SKEVM";
> +		simple-audio-card,widgets =
> +			"Headphone",	"Headphone Jack",
> +			"Line",	"Line In",
> +			"Microphone", "Microphone Jack";

Space/tab inconsistency after "Microphone",

> +		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>;
> +		};
> +	};
> +
>   	leds {
>   		compatible = "gpio-leds";
>   		pinctrl-names = "default";
> @@ -292,6 +338,15 @@ main_usb1_pins_default: main-usb1-pins-default {
>   			AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18) USB1_DRVVBUS */
>   		>;
>   	};
> +
> +	main_mcasp1_pins_default: main-mcasp1-pins-default {
> +		pinctrl-single,pins = <
> +			AM62X_IOPAD(0x0090, PIN_INPUT, 2) /* (M24) GPMC0_BE0N_CLE.MCASP1_ACLKX */
> +			AM62X_IOPAD(0x0098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
> +			AM62X_IOPAD(0x008c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEN.MCASP1_AXR0 */
> +			AM62X_IOPAD(0x0084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */

Better to have padding for the offsets here consistent across dt.

Reviewed-by: Jayesh Choudhary <j-choudhary@...com>

> +		>;
> +	};
>   };
>   
>   &wkup_uart0 {
> @@ -349,6 +404,19 @@ exp1: gpio@22 {
>   		pinctrl-names = "default";
>   		pinctrl-0 = <&main_gpio1_ioexp_intr_pins_default>;
>   	};
> +
> +	tlv320aic3106: audio-codec@1b {
> +		#sound-dai-cells = <0>;
> +		compatible = "ti,tlv320aic3106";
> +		reg = <0x1b>;
> +		ai3x-micbias-vg = <1>;	/* 2.0V */
> +
> +		/* Regulators */
> +		AVDD-supply = <&vcc_3v3_sys>;
> +		IOVDD-supply = <&vcc_3v3_sys>;
> +		DRVDD-supply = <&vcc_3v3_sys>;
> +		DVDD-supply = <&vcc_1v8>;
> +	};
>   };
>   
>   &sdhci0 {
> @@ -406,6 +474,26 @@ cpsw3g_phy1: ethernet-phy@1 {
>   	};
>   };
>   
> +&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>;
> +};
> +
>   &mailbox0_cluster0 {
>   	mbox_m4_0: mbox-m4-0 {
>   		ti,mbox-rx = <0 0 0>;
>