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Message-Id: <20240903091231.20035-4-francesco@dolcini.it>
Date: Tue,  3 Sep 2024 11:12:29 +0200
From: Francesco Dolcini <francesco@...cini.it>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.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>
Cc: João Paulo Gonçalves <joao.goncalves@...adex.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Francesco Dolcini <francesco.dolcini@...adex.com>
Subject: [PATCH v2 3/5] arm64: dts: imx8-apalis: Add audio support

From: João Paulo Gonçalves <joao.goncalves@...adex.com>

Add audio support to Apalis-iMX8QM and its carrier boards. These includes:
* On SOM i2s sound card
* On SOM spdif sound card
* Enabling Audiomix and Asynchronous Sample Rate Converter

Signed-off-by: João Paulo Gonçalves <joao.goncalves@...adex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>
---
v2: sort i2c child nodes by address
---
 .../boot/dts/freescale/imx8-apalis-eval.dtsi  | 26 ++++--
 .../dts/freescale/imx8-apalis-ixora-v1.1.dtsi | 26 ++++--
 .../dts/freescale/imx8-apalis-ixora-v1.2.dtsi | 26 ++++--
 .../boot/dts/freescale/imx8-apalis-v1.1.dtsi  | 82 +++++++++++++++++--
 4 files changed, 137 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi
index deecb96a1596..5f24356ad4e2 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-eval.dtsi
@@ -22,9 +22,13 @@ &adc1 {
 	status = "okay";
 };
 
-/* TODO: Audio Mixer */
+&amix {
+	status = "okay";
+};
 
-/* TODO: Asynchronous Sample Rate Converter (ASRC) */
+&asrc0 {
+	status = "okay";
+};
 
 /* TODO: Display Controller */
 
@@ -104,13 +108,25 @@ &lsio_pwm3 {
 
 /* TODO: Apalis BKL1_PWM */
 
-/* TODO: Apalis DAP1 */
+/* Apalis DAP1 */
+&sai1 {
+	status = "okay";
+};
 
-/* TODO: Apalis Analogue Audio */
+&sai5 {
+	status = "okay";
+};
+
+&sai5_lpcg {
+	status = "okay";
+};
 
 /* TODO: Apalis SATA1 */
 
-/* TODO: Apalis SPDIF1 */
+/* Apalis SPDIF1 */
+&spdif0 {
+	status = "okay";
+};
 
 /* TODO: Apalis USBH2, Apalis USBH3 and on-module Wi-Fi via on-module HSIC Hub */
 
diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi
index 5438923a905c..4ec2227750f4 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.1.dtsi
@@ -62,9 +62,13 @@ &adc1 {
 	status = "okay";
 };
 
-/* TODO: Audio Mixer */
+&amix {
+	status = "okay";
+};
 
-/* TODO: Asynchronous Sample Rate Converter (ASRC) */
+&asrc0 {
+	status = "okay";
+};
 
 /* TODO: Display Controller */
 
@@ -191,13 +195,25 @@ &lsio_pwm3 {
 
 /* TODO: Apalis BKL1_PWM */
 
-/* TODO: Apalis DAP1 */
+/* Apalis DAP1 */
+&sai1 {
+	status = "okay";
+};
 
-/* TODO: Apalis Analogue Audio */
+&sai5 {
+	status = "okay";
+};
+
+&sai5_lpcg {
+	status = "okay";
+};
 
 /* TODO: Apalis SATA1 */
 
-/* TODO: Apalis SPDIF1 */
+/* Apalis SPDIF1 */
+&spdif0 {
+	status = "okay";
+};
 
 /* TODO: Apalis USBH2, Apalis USBH3 and on-module Wi-Fi via on-module HSIC Hub */
 
diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
index f6654fdcb147..606d9328ac99 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-ixora-v1.2.dtsi
@@ -94,9 +94,13 @@ &adc1 {
 	status = "okay";
 };
 
-/* TODO: Audio Mixer */
+&amix {
+	status = "okay";
+};
 
-/* TODO: Asynchronous Sample Rate Converter (ASRC) */
+&asrc0 {
+	status = "okay";
+};
 
 /* TODO: Display Controller */
 
@@ -240,13 +244,25 @@ &lsio_pwm3 {
 
 /* TODO: Apalis BKL1_PWM */
 
-/* TODO: Apalis DAP1 */
+/* Apalis DAP1 */
+&sai1 {
+	status = "okay";
+};
 
-/* TODO: Apalis Analogue Audio */
+&sai5 {
+	status = "okay";
+};
+
+&sai5_lpcg {
+	status = "okay";
+};
 
 /* TODO: Apalis SATA1 */
 
-/* TODO: Apalis SPDIF1 */
+/* Apalis SPDIF1 */
+&spdif0 {
+	status = "okay";
+};
 
 /* TODO: Apalis USBH2, Apalis USBH3 and on-module Wi-Fi via on-module HSIC Hub */
 
diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
index e53683e49e03..91fd631b7ebd 100644
--- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi
@@ -126,6 +126,13 @@ reg_usb_phy: regulator-usb-hsic1 {
 		regulator-name = "usb-phy-dummy";
 	};
 
+	reg_vref_1v8: regulator-vref-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "+V1.8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -198,11 +205,32 @@ linux,cma {
 		};
 	};
 
-	/* TODO: Apalis Analogue Audio */
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,bitclock-master = <&dailink_master>;
+		simple-audio-card,format = "i2s";
+		simple-audio-card,frame-master = <&dailink_master>;
+		simple-audio-card,name = "apalis-imx8qm";
+
+		simple-audio-card,cpu {
+			sound-dai = <&sai1>;
+		};
+
+		dailink_master: simple-audio-card,codec {
+			sound-dai = <&sgtl5000>;
+		};
+	};
 
 	/* TODO: HDMI Audio */
 
-	/* TODO: Apalis SPDIF1 */
+	/* Apalis SPDIF1 */
+	sound-spdif {
+		compatible = "fsl,imx-audio-spdif";
+		model = "imx-spdif";
+		spdif-controller = <&spdif0>;
+		spdif-in;
+		spdif-out;
+	};
 
 	touchscreen: touchscreen {
 		compatible = "toradex,vf50-touchscreen";
@@ -227,6 +255,10 @@ touchscreen: touchscreen {
 
 };
 
+&asrc0 {
+	fsl,asrc-rate  = <48000>;
+};
+
 &adc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_adc0>;
@@ -334,8 +366,6 @@ &i2c1 {
 	clock-frequency = <100000>;
 	status = "okay";
 
-	/* TODO: Audio Codec */
-
 	/* USB3503A */
 	usb-hub@8 {
 		compatible = "smsc,usb3503a";
@@ -348,6 +378,24 @@ usb-hub@8 {
 		refclk-frequency = <25000000>;
 		reset-gpios = <&lsio_gpio1 2 GPIO_ACTIVE_LOW>;
 	};
+	
+	/* On Module Audio Codec */
+	sgtl5000: audio-codec@a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		assigned-clocks = <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_PLL>,
+				  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_SLV_BUS>,
+				  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_MST_BUS>,
+				  <&mclkout0_lpcg IMX_LPCG_CLK_0>;
+		assigned-clock-rates = <786432000>, <49152000>, <12288000>, <12288000>;
+		clocks = <&mclkout0_lpcg IMX_LPCG_CLK_0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sgtl5000>;
+		#sound-dai-cells = <0>;
+		VDDA-supply = <&reg_module_3v3_avdd>;
+		VDDD-supply = <&reg_vref_1v8>;
+		VDDIO-supply = <&reg_module_3v3>;
+	};
 };
 
 /* Apalis I2C1 */
@@ -729,13 +777,31 @@ &mu2_m0 {
 
 /* TODO: Apalis BKL1_PWM */
 
-/* TODO: Apalis DAP1 */
-
-/* TODO: Analogue Audio */
+/* Apalis DAP1 */
+&sai1 {
+	assigned-clocks = <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_PLL>,
+			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_SLV_BUS>,
+			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_MST_BUS>,
+			  <&sai1_lpcg IMX_LPCG_CLK_0>;
+	assigned-clock-rates = <786432000>, <49152000>, <12288000>, <49152000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai1>;
+	#sound-dai-cells = <0>;
+	status = "okay";
+};
 
 /* TODO: Apalis SATA1 */
 
-/* TODO: Apalis SPDIF1 */
+/* Apalis SPDIF1 */
+&spdif0 {
+	assigned-clocks = <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_PLL>,
+			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_SLV_BUS>,
+			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_MST_BUS>;
+	assigned-clock-rates = <786432000>, <49152000>, <12288000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spdif0>;
+	status = "okay";
+};
 
 /* TODO: Thermal Zones */
 
-- 
2.39.2


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