Commit 5f7c9c3e authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Shawn Guo
Browse files

arm64: dts: imx8mm-evk: Add PDM micphone sound card support 



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: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 4b0947c0

arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi

+36 −0
Original line number Diff line number Diff line
@@ -151,6 +151,20 @@ simple-audio-card,codec { 
			clocks = <&clk IMX8MM_CLK_SAI3_ROOT>;

		};

	};



	sound-micfil {

		compatible = "fsl,imx-audio-card";

		model = "micfil-audio";



		pri-dai-link {

			link-name = "micfil hifi";

			format = "i2s";



			cpu {

				sound-dai = <&micfil>;

			};

		};

	};

};



&A53_0 {
@@ -434,6 +448,16 @@ &lcdif { 
	status = "okay";

};



&micfil {

	#sound-dai-cells = <0>;

	pinctrl-names = "default";

	pinctrl-0 = <&pinctrl_pdm>;

	assigned-clocks = <&clk IMX8MM_CLK_PDM>;

	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;

	assigned-clock-rates = <196608000>;

	status = "okay";

};



&mipi_csi {

	status = "okay";
@@ -636,6 +660,18 @@ MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5 0x41 
		>;

	};



	pinctrl_pdm: pdmgrp {

		fsl,pins = <

			MX8MM_IOMUXC_SAI5_MCLK_SAI5_MCLK        0xd6

			MX8MM_IOMUXC_SAI5_RXC_PDM_CLK           0xd6

			MX8MM_IOMUXC_SAI5_RXFS_SAI5_RX_SYNC     0xd6

			MX8MM_IOMUXC_SAI5_RXD0_PDM_DATA0        0xd6

			MX8MM_IOMUXC_SAI5_RXD1_PDM_DATA1        0xd6

			MX8MM_IOMUXC_SAI5_RXD2_PDM_DATA2        0xd6

			MX8MM_IOMUXC_SAI5_RXD3_PDM_DATA3        0xd6

		>;

	};



	pinctrl_pmic: pmicirqgrp {

		fsl,pins = <

			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x141