[PATCH v2 3/5] arm64: dts: imx8-apalis: Add audio support

From: Francesco Dolcini
Date: Tue Sep 03 2024 - 05:13:32 EST

From: João Paulo Gonçalves <joao.goncalves@xxxxxxxxxxx>

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@xxxxxxxxxxx>
Signed-off-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>
---
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