[PATCH v2 2/2] arm64: dts: imx8mn-bsh-smm-s2pro: Add tlv320aic31xx audio card node

Ariel D'Alessandro
2022-02-10T13:41:57Z

BSH SystemMaster (SMM) S2 PRO board comes with an audio card based on
tlv320aic31xx family codec.

The audio card exposes two playback devices, one of them using the EASRC
(Enhanced Asynchronous Sample Rate Converter) module. Note that this
would require SDMA and EASRC firmware in order to work.

Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
---
.../dts/freescale/imx8mn-bsh-smm-s2pro.dts | 94 +++++++++++++++++++
1 file changed, 94 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2pro.dts b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2pro.dts
index c6a8ed6745c1..3621354b4a92 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2pro.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2pro.dts
@@ -7,6 +7,7 @@
/dts-v1/;

#include "imx8mn-bsh-smm-s2-common.dtsi"
+#include <dt-bindings/sound/tlv320aic31xx.h>

/ {
model = "BSH SMM S2 PRO";
@@ -16,6 +17,69 @@ memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0x0 0x20000000>;
};
+
+ sound-tlv320aic31xx {
+ compatible = "fsl,imx-audio-tlv320aic31xx";
+ model = "tlv320aic31xx-hifi";
+ audio-cpu = <&sai3>;
+ audio-codec = <&codec>;
+ audio-asrc = <&easrc>;
+ audio-routing =
+ "Ext Spk", "SPL",
+ "Ext Spk", "SPR";
+ mclk-id = <PLL_CLKIN_BCLK>;
+ };
+
+ vdd_input: vdd_input {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_input";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+};
+
+&easrc {
+ fsl,asrc-rate = <48000>;
+ fsl,asrc-format = <10>;
+ status = "okay";
+};
+
+&i2c2 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ codec: tlv320dac3101@18 {
+ #sound-dai-cells = <0>;
+ compatible = "ti,tlv320dac3101";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dac_rst>;
+ reg = <0x18>;
+
+ ai31xx-micbias-vg = <MICBIAS_AVDDV>;
+
+ HPVDD-supply = <&buck4_reg>;
+ SPRVDD-supply = <&vdd_input>;
+ SPLVDD-supply = <&vdd_input>;
+ AVDD-supply = <&buck4_reg>;
+ IOVDD-supply = <&buck4_reg>;
+ DVDD-supply = <&buck5_reg>;
+ reset-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+
+ clocks = <&clk IMX8MN_CLK_SAI3_ROOT>;
+ clock-names = "mclk";
+ };
+};
+
+&sai3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai3>;
+ assigned-clocks = <&clk IMX8MN_CLK_SAI3>;
+ assigned-clock-parents = <&clk IMX8MN_AUDIO_PLL1_OUT>;
+ assigned-clock-rates = <24576000>;
+ fsl,sai-mclk-direction-output;
+ status = "okay";
};

/* eMMC */
@@ -30,6 +94,36 @@ &usdhc1 {
};

&iomuxc {
+ pinctrl_dac_rst: dac_rst {
+ fsl,pins = <
+ MX8MN_IOMUXC_GPIO1_IO06_GPIO1_IO6 0x19 /* DAC_RST */
+ >;
+ };
+
+ pinctrl_espi2: espi2grp {
+ fsl,pins = <
+ MX8MN_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x082
+ MX8MN_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x082
+ MX8MN_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x082
+ MX8MN_IOMUXC_ECSPI2_SS0_ECSPI2_SS0 0x040
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL 0x400000c3
+ MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA 0x400000c3
+ >;
+ };
+
+ pinctrl_sai3: sai3grp {
+ fsl,pins = <
+ MX8MN_IOMUXC_SAI3_TXFS_SAI3_TX_SYNC 0xd6
+ MX8MN_IOMUXC_SAI3_TXC_SAI3_TX_BCLK 0xd6
+ MX8MN_IOMUXC_SAI3_TXD_SAI3_TX_DATA0 0xd6
+ >;
+ };
+
pinctrl_usdhc1: usdhc1grp {
fsl,pins = <
MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK 0x40000090
--
2.34.1