On Sat, May 02, 2020 at 07:59:48AM -0500, Adam Ford wrote:
> The i.MX8M Mini has supports the MICFIL digital interface.
> It's a 16-bit audio signal from a PDM microphone bitstream.
> The driver is already in the kernel, but the node is missing.
>
> This patch adds the micfil node.
>
> Signed-off-by: Adam Ford <[email protected]>
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> index c63685ae80ee..d46e727fc362 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
> @@ -339,6 +339,25 @@ sai6: sai@30060000 {
> status = "disabled";
> };
>
> + micfil: micfil@30080000 {
Find a generic node name, audio-controller maybe?
Shawn
> + compatible = "fsl,imx8mm-micfil";
> + reg = <0x30080000 0x10000>;
> + interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&clk IMX8MM_CLK_PDM_IPG>,
> + <&clk IMX8MM_CLK_PDM_ROOT>,
> + <&clk IMX8MM_AUDIO_PLL1_OUT>,
> + <&clk IMX8MM_AUDIO_PLL2_OUT>,
> + <&clk IMX8MM_CLK_EXT3>;
> + clock-names = "ipg_clk", "ipg_clk_app",
> + "pll8k", "pll11k", "clkext3";
> + dmas = <&sdma2 24 25 0x80000000>;
> + dma-names = "rx";
> + status = "disabled";
> + };
> +
> gpio1: gpio@30200000 {
> compatible = "fsl,imx8mm-gpio",
> "fsl,imx35-gpio";
> reg = <0x30200000 0x10000>;
> --
> 2.25.1
>
