[V4,4/5] arm64: dts: imx8mn: Add support for micfil

Commit Message

Adam Ford Nov. 7, 2020, 11:58 a.m. UTC

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 <[e-mail]>
---
V4:  No Change
V3:  No Change
V2:  Change micfil@30080000 to audio-controller@30080000

 arch/arm64/boot/dts/freescale/imx8mn.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 6ea0d43a78a3..aa3f1eb391bd 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -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>;