diff options
| author | Adam Ford <aford173@gmail.com> | 2023-10-08 09:02:36 -0500 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2023-10-10 11:06:02 +0800 |
| commit | a9c8d7f77c26d07dc443c6d4a75f2543c56423de (patch) | |
| tree | e24be56a1511e46fb1ecc8ddd71e2bc4b2548ab5 /arch | |
| parent | 189399a4ca82cc9bb4eb1d269970715fe4dad132 (diff) | |
arm64: dts: imx8mm-beacon: Add DMIC support
The baseboard has a connector for a pulse density microphone.
This is connected via the micfil interface and uses the DMIC
audio codec with the simple-audio-card.
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi index 313e93663d6f..6086dae2e5fb 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi @@ -6,6 +6,13 @@ #include <dt-bindings/phy/phy-imx8-pcie.h> / { + + dmic_codec: dmic-codec { + compatible = "dmic-codec"; + num-channels = <1>; + #sound-dai-cells = <0>; + }; + leds { compatible = "gpio-leds"; @@ -98,6 +105,22 @@ enable-active-high; }; + sound-dmic { + compatible = "simple-audio-card"; + simple-audio-card,name = "dmic"; + simple-audio-card,format = "pdm"; + simple-audio-card,bitclock-master = <&dailink_master>; + simple-audio-card,frame-master = <&dailink_master>; + + dailink_master: simple-audio-card,cpu { + sound-dai = <&micfil>; + }; + + simple-audio-card,codec { + sound-dai = <&dmic_codec>; + }; + }; + sound-wm8962 { compatible = "simple-audio-card"; simple-audio-card,name = "wm8962"; @@ -228,6 +251,15 @@ }; }; +&micfil { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pdm>; + assigned-clocks = <&clk IMX8MM_CLK_PDM>; + assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>; + assigned-clock-rates = <49152000>; + status = "okay"; +}; + &mipi_csi { status = "okay"; ports { @@ -365,6 +397,13 @@ >; }; + pinctrl_pdm: pdmgrp { + fsl,pins = < + MX8MM_IOMUXC_SAI5_RXC_PDM_CLK 0xd6 + MX8MM_IOMUXC_SAI5_RXD0_PDM_DATA0 0xd6 + >; + }; + pinctrl_reg_usb_otg1: usbotg1grp { fsl,pins = < MX8MM_IOMUXC_SAI3_RXC_GPIO4_IO29 0x19 |