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From:   Jai Luthra <j-luthra@ti.com>
Date:   Wed, 29 Mar 2023 16:01:00 +0530
Subject: [PATCH v9 3/6] arm64: dts: ti: k3-am625-sk: Enable audio on AM62
 SK
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Message-ID: <20230313-mcasp_upstream-v9-3-6d937efe4ec4@ti.com>
References: <20230313-mcasp_upstream-v9-0-6d937efe4ec4@ti.com>
In-Reply-To: <20230313-mcasp_upstream-v9-0-6d937efe4ec4@ti.com>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        Aradhya Bhatia <a-bhatia1@ti.com>,
        Devarsh Thakkar <devarsht@ti.com>,
        Jayesh Choudhary <j-choudhary@ti.com>,
        Andrew Davis <afd@ti.com>, Jai Luthra <j-luthra@ti.com>
Precedence: bulk

Add nodes for audio codec and sound card, enable the audio serializer
(McASP1) under use from SK-AM62 E2 [1] onwards and update pinmux.

Keep all audio related nodes in the common dtsi as they are exactly the
same between SK-AM62 and SK-AM62-LP.

Link: https://www.ti.com/lit/zip/sprr448 [1]
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Reviewed-by: Jayesh Choudhary <j-choudhary@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts       |  4 ++
 arch/arm64/boot/dts/ti/k3-am625-sk.dts         | 15 +++++
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 76 ++++++++++++++++++++++++++
 3 files changed, 95 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
index b2ca19e3042e..4b94f7a86316 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts
@@ -225,3 +225,7 @@ ldo4_reg: ldo4 {
 		};
 	};
 };
+
+&tlv320aic3106 {
+	DVDD-supply = <&buck2_reg>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
index cdc0858dd1b2..2a1adda9bff6 100644
--- a/arch/arm64/boot/dts/ti/k3-am625-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -87,6 +87,17 @@ vdd_sd_dv: regulator-4 {
 		states = <1800000 0x0>,
 			 <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;
+	};
 };
 
 &main_pmx0 {
@@ -256,3 +267,7 @@ partition@3fc0000 {
 		};
 	};
 };
+
+&tlv320aic3106 {
+	DVDD-supply = <&vcc_1v8>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 54318a07d50c..e197ea5fa448 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -81,6 +81,41 @@ 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 = "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>;
+		};
+	};
 };
 
 &main_pmx0 {
@@ -175,6 +210,15 @@ main_usb1_pins_default: main-usb1-pins-default {
 			AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18/E16) 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 {
@@ -205,6 +249,18 @@ &main_i2c1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_i2c1_pins_default>;
 	clock-frequency = <400000>;
+
+	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>;
+	};
 };
 
 &sdhci0 {
@@ -272,3 +328,23 @@ &usb1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&main_usb1_pins_default>;
 };
+
+&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