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arm64: dts: imx8mp-msc-sm2s: Add sound card

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The MSC SM2-MB-EP1 carrier board for the SM2S-IMX8PLUS SMARC module has an
NXP SGTL5000 audio codec connected to I2S-0 (sai2).

This requires to:

 * add the power supplies (always on)
 * enable sai2 with pinmuxes
 * reparent the CLKOUT1 clock that feeds the codec SYS_MCLK to
   IMX8MP_CLK_24M in order it to generate an accurate 24 MHz rate

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Luca Ceresoli 2023-05-29 11:57:28 +02:00 committed by Shawn Guo
parent f5402fff11
commit d874b9f7f2
1 changed files with 70 additions and 0 deletions
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70
arch/arm64/boot/dts/freescale/imx8mp-msc-sm2s-ep1.dts
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@ -14,6 +14,67 @@
compatible = "avnet,sm2s-imx8mp-14N0600E-ep1",
"avnet,sm2s-imx8mp-14N0600E", "avnet,sm2s-imx8mp",
"fsl,imx8mp";
reg_vcc_3v3_audio: 3v3-audio-regulator {
compatible = "regulator-fixed";
regulator-name = "VCC_3V3_AUD";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
reg_vcc_1v8_audio: 1v8-audio-regulator {
compatible = "regulator-fixed";
regulator-name = "VCC_1V8_AUD";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "sgtl5000-audio";
simple-audio-card,format = "i2s";
simple-audio-card,frame-master = <&codec_dai>;
simple-audio-card,bitclock-master = <&codec_dai>;
simple-audio-card,cpu {
sound-dai = <&sai2>;
};
codec_dai: simple-audio-card,codec {
sound-dai = <&sgtl5000>;
};
};
};
&i2c1 {
sgtl5000: audio-codec@a {
compatible = "fsl,sgtl5000";
reg = <0x0a>;
assigned-clocks = <&clk IMX8MP_CLK_CLKOUT1_SEL>;
assigned-clock-parents = <&clk IMX8MP_CLK_24M>;
assigned-clock-rates = <24000000>;
clocks = <&clk IMX8MP_CLK_CLKOUT1>;
clock-names = "mclk";
#sound-dai-cells = <0>;
VDDA-supply = <&reg_vcc_3v3_audio>;
VDDD-supply = <&reg_vcc_1v8_audio>;
VDDIO-supply = <&reg_vcc_1v8_audio>;
};
};
/* I2S-0 = sai2 */
&sai2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_sai2>;
assigned-clocks = <&clk IMX8MP_CLK_SAI2>;
assigned-clock-parents = <&clk IMX8MP_AUDIO_PLL1_OUT>;
assigned-clock-rates = <12288000>;
fsl,sai-mclk-direction-output;
status = "okay";
};
&flexcan1 {
@ -32,6 +93,15 @@
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_smarc_gpio>;
pinctrl_sai2: sai2grp {
fsl,pins = <
MX8MP_IOMUXC_SAI2_TXFS__AUDIOMIX_SAI2_TX_SYNC 0xd6
MX8MP_IOMUXC_SAI2_TXC__AUDIOMIX_SAI2_TX_BCLK 0xd6
MX8MP_IOMUXC_SAI2_RXD0__AUDIOMIX_SAI2_RX_DATA00 0xd6
MX8MP_IOMUXC_SAI2_TXD0__AUDIOMIX_SAI2_TX_DATA00 0xd6
>;
};
pinctrl_smarc_gpio: smarcgpiosgrp {
fsl,pins =
<MX8MP_IOMUXC_GPIO1_IO11__GPIO1_IO11 0x19>, /* GPIO0 */