linux-kernel - [PATCH v6 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62 SK

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Date:   Wed, 15 Mar 2023 14:33:32 +0530
From:   Jai Luthra <j-luthra@...com>
To:     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>,
        Andrew Davis <afd@...com>,
        Jayesh Choudhary <j-choudhary@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Aradhya Bhatia <a-bhatia1@...com>, Jai Luthra <j-luthra@...com>
Subject: [PATCH v6 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62 SK

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>
Reviewed-by: Jayesh Choudhary <j-choudhary@...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..2727a3c81e93 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>;
+	};
+
+	codec_audio: sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "AM62x-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>;
+		};
+	};
+
 	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(0x090, PIN_INPUT, 2) /* (M24) GPMC0_BE0N_CLE.MCASP1_ACLKX */
+			AM62X_IOPAD(0x098, PIN_INPUT, 2) /* (U23) GPMC0_WAIT0.MCASP1_AFSX */
+			AM62X_IOPAD(0x08c, PIN_OUTPUT, 2) /* (L25) GPMC0_WEN.MCASP1_AXR0 */
+			AM62X_IOPAD(0x084, PIN_INPUT, 2) /* (L23) GPMC0_ADVN_ALE.MCASP1_AXR2 */
+		>;
+	};
 };
 
 &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>;

-- 
2.39.2