linux-kernel - [PATCH v1 1/2] arm64: dts: freescale: verdin-imx8mp: dahlia: add sound card

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Message-Id: <20230719125430.249644-2-francesco@dolcini.it>
Date:   Wed, 19 Jul 2023 14:54:29 +0200
From:   Francesco Dolcini <francesco@...cini.it>
To:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Francesco Dolcini <francesco.dolcini@...adex.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH v1 1/2] arm64: dts: freescale: verdin-imx8mp: dahlia: add sound card

From: Francesco Dolcini <francesco.dolcini@...adex.com>

Add WM8904 based analog sound card to Dahlia carrier board.

Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
 .../dts/freescale/imx8mp-verdin-dahlia.dtsi   | 56 ++++++++++++++++++-
 1 file changed, 53 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
index 56b0e4b865c9..7e9e4b13b5c5 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi
@@ -3,7 +3,36 @@
  * Copyright 2022 Toradex
  */
 
-/* TODO: Audio Codec */
+/ {
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,bitclock-master = <&codec_dai>;
+		simple-audio-card,format = "i2s";
+		simple-audio-card,frame-master = <&codec_dai>;
+		simple-audio-card,mclk-fs = <256>;
+		simple-audio-card,name = "imx8mp-wm8904";
+		simple-audio-card,routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"IN2L", "Line In Jack",
+			"IN2R", "Line In Jack",
+			"Headphone Jack", "MICBIAS",
+			"IN1L", "Headphone Jack";
+		simple-audio-card,widgets =
+			"Microphone", "Headphone Jack",
+			"Headphone", "Headphone Jack",
+			"Line", "Line In Jack";
+
+		codec_dai: simple-audio-card,codec {
+			clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI1_MCLK1>;
+			sound-dai = <&wm8904_1a>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai1>;
+		};
+	};
+};
 
 &backlight {
 	power-supply = <&reg_3p3v>;
@@ -64,7 +93,21 @@ &i2c3 {
 &i2c4 {
 	status = "okay";
 
-	/* TODO: Audio Codec */
+	/* Audio Codec */
+	wm8904_1a: audio-codec@1a {
+		compatible = "wlf,wm8904";
+		reg = <0x1a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sai1>;
+		#sound-dai-cells = <0>;
+		clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SAI1_MCLK1>;
+		clock-names = "mclk";
+		AVDD-supply = <&reg_1p8v>;
+		CPVDD-supply = <&reg_1p8v>;
+		DBVDD-supply = <&reg_1p8v>;
+		DCVDD-supply = <&reg_1p8v>;
+		MICVDD-supply = <&reg_1p8v>;
+	};
 };
 
 /* Verdin PCIE_1 */
@@ -95,7 +138,14 @@ &reg_usdhc2_vmmc {
 	vin-supply = <&reg_3p3v>;
 };
 
-/* TODO: Verdin I2S_1 */
+/* Verdin I2S_1 */
+&sai1 {
+	assigned-clocks = <&clk IMX8MP_CLK_SAI1>;
+	assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
 
 /* Verdin UART_1 */
 &uart1 {
-- 
2.25.1