The i.MX8M Mini can support SPIDF which is very similar to the
IP used on the i.MX35.

This patch adds the SPIF node.

Signed-off-by: Adam Ford <aford...@gmail.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi 
b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index d46e727fc362..00aad55ece65 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -358,6 +358,29 @@ micfil: micfil@30080000 {
                                status = "disabled";
                        };
 
+                       spdif1: spdif@30090000 {
+                               compatible = "fsl,imx8mm-spdif", 
"fsl,imx35-spdif";
+                               reg = <0x30090000 0x10000>;
+                               interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+                               clocks = <&clk IMX8MM_CLK_AUDIO_AHB>, /* core */
+                                        <&clk IMX8MM_CLK_24M>, /* rxtx0 */
+                                        <&clk IMX8MM_CLK_SPDIF1>, /* rxtx1 */
+                                        <&clk IMX8MM_CLK_DUMMY>, /* rxtx2 */
+                                        <&clk IMX8MM_CLK_DUMMY>, /* rxtx3 */
+                                        <&clk IMX8MM_CLK_DUMMY>, /* rxtx4 */
+                                        <&clk IMX8MM_CLK_AUDIO_AHB>, /* rxtx5 
*/
+                                        <&clk IMX8MM_CLK_DUMMY>, /* rxtx6 */
+                                        <&clk IMX8MM_CLK_DUMMY>, /* rxtx7 */
+                                        <&clk IMX8MM_CLK_DUMMY>; /* spba */
+                               clock-names = "core", "rxtx0",
+                                             "rxtx1", "rxtx2",
+                                             "rxtx3", "rxtx4",
+                                             "rxtx5", "rxtx6",
+                                             "rxtx7", "spba";
+                               dmas = <&sdma2 28 18 0>, <&sdma2 29 18 0>;
+                               dma-names = "rx", "tx";
+                               status = "disabled";
+                       };
                        gpio1: gpio@30200000 {
                                compatible = "fsl,imx8mm-gpio", 
"fsl,imx35-gpio";
                                reg = <0x30200000 0x10000>;
-- 
2.25.1

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