From 31b2f4e4c4f70bdcb98ab67cf0592d1d9f226c3d Mon Sep 17 00:00:00 2001 From: Shengjiu Wang Date: Wed, 16 Oct 2024 16:49:17 +0800 Subject: [PATCH] arm64: dts: imx93-9x9-qsb: Add PDM microphone sound card support Add PDM micphone sound card support, configure the pinmux. This sound card supports recording sound from PDM microphone and convert the PDM format data to PCM data. Signed-off-by: Shengjiu Wang Reviewed-by: Frank Li Signed-off-by: Shawn Guo --- .../boot/dts/freescale/imx93-9x9-qsb.dts | 37 +++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts index cd2ad342be61..20ec5b3c21f4 100644 --- a/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts +++ b/arch/arm64/boot/dts/freescale/imx93-9x9-qsb.dts @@ -122,6 +122,20 @@ }; }; + sound-micfil { + compatible = "fsl,imx-audio-card"; + model = "micfil-audio"; + + pri-dai-link { + link-name = "micfil hifi"; + format = "i2s"; + + cpu { + sound-dai = <&micfil>; + }; + }; + }; + sound-wm8962 { compatible = "fsl,imx-audio-wm8962"; model = "wm8962-audio"; @@ -271,6 +285,12 @@ gpios = <22 GPIO_ACTIVE_HIGH>; output-low; }; + + mic-can-sel-hog { + gpio-hog; + gpios = <17 GPIO_ACTIVE_HIGH>; + output-low; + }; }; pmic@25 { @@ -355,6 +375,15 @@ status = "okay"; }; +&micfil { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pdm>; + assigned-clocks = <&clk IMX93_CLK_PDM>; + assigned-clock-parents = <&clk IMX93_CLK_AUDIO_PLL>; + assigned-clock-rates = <49152000>; + status = "okay"; +}; + &mu1 { status = "okay"; }; @@ -468,6 +497,14 @@ >; }; + pinctrl_pdm: pdmgrp { + fsl,pins = < + MX93_PAD_PDM_CLK__PDM_CLK 0x31e + MX93_PAD_PDM_BIT_STREAM0__PDM_BIT_STREAM00 0x31e + MX93_PAD_PDM_BIT_STREAM1__PDM_BIT_STREAM01 0x31e + >; + }; + pinctrl_uart1: uart1grp { fsl,pins = < MX93_PAD_UART1_RXD__LPUART1_RX 0x31e -- 2.50.1