[PATCH 4/5] arm64: dts: imx8mn: Add support for micfil

[Adam Ford]

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@xxxxxxxxx>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 9e2c0b6a7e32..3ab9486736ca 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -315,6 +315,25 @@ sai6: sai@30060000 {
 					status = "disabled";
 				};
 
+				micfil: micfil@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,imx8mq-sai",
 						     "fsl,imx6sx-sai";
-- 
2.25.1