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arm64: dts: imx8mn-evk: Add PDM micphone sound card support

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Add PDM micphone sound card support, configure the pinmux.

This sound card supports recording sound from PDM micphone
and convert the PDM format data to PCM data.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Shengjiu Wang 2024-02-05 10:04:24 +08:00 • committed by Shawn Guo
parent 5f7c9c3e69
commit caf5567b42
1 changed files with 36 additions and 0 deletions
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36
arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
View file

@ -110,6 +110,20 @@
spdif-out;
spdif-in;
};
sound-micfil {
compatible = "fsl,imx-audio-card";
model = "micfil-audio";
pri-dai-link {
link-name = "micfil hifi";
format = "i2s";
cpu {
sound-dai = <&micfil>;
};
};
};
};
&easrc {
@ -285,6 +299,16 @@
status = "okay";
};
&micfil {
#sound-dai-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pdm>;
assigned-clocks = <&clk IMX8MN_CLK_PDM>;
assigned-clock-parents = <&clk IMX8MN_AUDIO_PLL1_OUT>;
assigned-clock-rates = <196608000>;
status = "okay";
};
&mipi_csi {
status = "okay";
@ -522,6 +546,18 @@
>;
};
pinctrl_pdm: pdmgrp {
fsl,pins = <
MX8MN_IOMUXC_SAI5_MCLK_SAI5_MCLK 0xd6
MX8MN_IOMUXC_SAI5_RXC_PDM_CLK 0xd6
MX8MN_IOMUXC_SAI5_RXFS_SAI5_RX_SYNC 0xd6
MX8MN_IOMUXC_SAI5_RXD0_PDM_BIT_STREAM0 0xd6
MX8MN_IOMUXC_SAI5_RXD1_PDM_BIT_STREAM1 0xd6
MX8MN_IOMUXC_SAI5_RXD2_PDM_BIT_STREAM2 0xd6
MX8MN_IOMUXC_SAI5_RXD3_PDM_BIT_STREAM3 0xd6
>;
};
pinctrl_pmic: pmicirqgrp {
fsl,pins = <
MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3 0x141