@@ -318,6 +318,25 @@ sai6: sai@30060000 {
status = "disabled";
};
+ micfil: audio-controller@30080000 {
+ 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 IMX8MN_CLK_PDM_IPG>,
+ <&clk IMX8MN_CLK_PDM_ROOT>,
+ <&clk IMX8MN_AUDIO_PLL1_OUT>,
+ <&clk IMX8MN_AUDIO_PLL2_OUT>,
+ <&clk IMX8MN_CLK_EXT3>;
+ clock-names = "ipg_clk", "ipg_clk_app",
+ "pll8k", "pll11k", "clkext3";
+ dmas = <&sdma2 24 25 0x80000000>;
+ dma-names = "rx";
+ status = "disabled";
+ };
+
sai7: sai@300b0000 {
compatible = "fsl,imx8mm-sai", "fsl,imx8mq-sai";
reg = <0x300b0000 0x10000>;
The i.MX8M Nano 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. Add the micfil node. Signed-off-by: Adam Ford <aford173@gmail.com> --- V2: Rebase and use generic term audio-controller instead of micfil. --- arch/arm64/boot/dts/freescale/imx8mn.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)