Hi Adam,
On Sun, Jul 17, 2022 at 01:09:58PM -0500, Adam Ford wrote:
> There is a PDM microphone port on the baseboard which is connected to the
> micfil controller. Create a new sound card to support this interface.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
> index 03266bd90a06..16444954f873 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-baseboard.dtsi
> @@ -98,7 +98,7 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
> enable-active-high;
> };
>
> - sound {
> + sound-codec {
> compatible = "fsl,imx-audio-wm8962";
> model = "wm8962-audio";
> audio-cpu = <&sai3>;
> @@ -111,6 +111,18 @@ sound {
> "AMIC", "MICBIAS",
> "IN3R", "AMIC";
> };
> +
> + sound-micfil {
> + compatible = "fsl,imx-audio-card";
> + model = "imx-audio-micfil";
> + pri-dai-link {
> + link-name = "micfil hifi";
> + format = "i2s";
> + cpu {
> + sound-dai = <&micfil>;
> + };
> + };
> + };
Note the micfil works well with the simple-audio-card driver which might
be an alternative here.
Sascha
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
