linux-kernel - Re: [PATCH v9 6/6] arm64: dts: ti: k3-am62a7-sk: Enable audio on AM62A

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Message-ID: <20230330025058.sum2yq2yaufxevfy@giver>
Date:   Wed, 29 Mar 2023 21:50:58 -0500
From:   Nishanth Menon <nm@...com>
To:     Jai Luthra <j-luthra@...com>
CC:     Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Aradhya Bhatia <a-bhatia1@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Jayesh Choudhary <j-choudhary@...com>,
        Andrew Davis <afd@...com>
Subject: Re: [PATCH v9 6/6] arm64: dts: ti: k3-am62a7-sk: Enable audio on
 AM62A

On 16:01-20230329, Jai Luthra wrote:
> Add nodes for audio codec and sound card, enable the audio serializer
> (McASP1) under use and update pinmux.
> 
> The codec (TLV320AIC3106) is also supplied with a DVDD 1.8V supply from
> the PMIC (TPS6593x) on the SK. [1] As the PMIC driver and devicetree
> node is missing, skip describing DVDD for now and manually set the OCMV
> voltage.

Please drop the am62a7 series from this patch series. once you add PMIC
device tree property, then lets add the dvdd properly rather than
reworking this again.

> 
> Link: https://www.ti.com/lit/zip/sprr459 [1]
> Signed-off-by: Jai Luthra <j-luthra@...com>
> Reviewed-by: Jayesh Choudhary <j-choudhary@...com>
> ---
>  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 2296d656323c..8d7087e5f9e4 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -123,6 +123,41 @@ 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 {
> @@ -201,6 +236,15 @@ 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 {
> @@ -235,6 +279,19 @@ 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 */
> +		ai3x-ocmv = <1>;	/* 1.5V */
> +
> +		/* Regulators */
> +		AVDD-supply = <&vcc_3v3_sys>;
> +		IOVDD-supply = <&vcc_3v3_sys>;
> +		DRVDD-supply = <&vcc_3v3_sys>;
> +	};
>  };
>  
>  &sdhci1 {
> @@ -303,3 +360,23 @@ 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>;
> +};
> 
> -- 
> 2.40.0
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D