On Sat, Aug 26, 2023 at 9:32 PM Adam Ford <aford173@xxxxxxxxx> wrote:
>
> The i.MX8MP has a micfil controller which is used for interfacing
> with a pulse density microphone. Add the node and mark it as
> disabled by default.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> ---
Nak. I guess I'll Nak myself.
> V2: No Change
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index 79cdd4c066c8..b44851a2f579 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -1473,6 +1473,27 @@ easrc: easrc@30c90000 {
> fsl,asrc-format = <2>;
> status = "disabled";
> };
> +
> + micfil: audio-controller@30ca0000 {
> + compatible = "fsl,imx8mp-micfil";
> + reg = <0x30ca0000 0x10000>;
> + #sound-dai-cells = <0>;
> + 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 = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_PDM_IPG>,
> + <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_PDM_ROOT>,
After a bunch of attempts to get this working on real hardware, it
turns out that IMX8MP_CLK_AUDIOMIX_PDM_ROOT doesn't really exist. Its
real name is IMX8MP_CLK_AUDIOMIX_PDM_SEL. I'll submit a patch to
remove this from imx8mp-clock.h and and a V3 of this series to update
the clock reference in this node.
> + <&clk IMX8MP_AUDIO_PLL1_OUT>,
> + <&clk IMX8MP_AUDIO_PLL2_OUT>,
> + <&clk IMX8MP_CLK_EXT3>;
> + clock-names = "ipg_clk", "ipg_clk_app",
> + "pll8k", "pll11k", "clkext3";
> + dmas = <&sdma2 24 25 0x80000000>;
> + dma-names = "rx";
> + status = "disabled";
> + };
> +
> };
>
> sdma3: dma-controller@30e00000 {
> --
> 2.39.2
>
