ARM: dts: imx7s: Add SAI nodes

Add the three SAI ports nodes.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx7s.dtsi

@@ -723,6 +723,51 @@ uart3: serial@30880000 {
 				status = "disabled";
 			};
 
+			sai1: sai@308a0000 {
+				#sound-dai-cells = <0>;
+				compatible = "fsl,imx7d-sai", "fsl,imx6sx-sai";
+				reg = <0x308a0000 0x10000>;
+				interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX7D_SAI1_IPG_CLK>,
+					 <&clks IMX7D_SAI1_ROOT_CLK>,
+					 <&clks IMX7D_CLK_DUMMY>,
+					 <&clks IMX7D_CLK_DUMMY>;
+				clock-names = "bus", "mclk1", "mclk2", "mclk3";
+				dma-names = "rx", "tx";
+				dmas = <&sdma 8 24 0>, <&sdma 9 24 0>;
+				status = "disabled";
+			};
+
+			sai2: sai@308b0000 {
+				#sound-dai-cells = <0>;
+				compatible = "fsl,imx7d-sai", "fsl,imx6sx-sai";
+				reg = <0x308b0000 0x10000>;
+				interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX7D_SAI2_IPG_CLK>,
+					 <&clks IMX7D_SAI2_ROOT_CLK>,
+					 <&clks IMX7D_CLK_DUMMY>,
+					 <&clks IMX7D_CLK_DUMMY>;
+				clock-names = "bus", "mclk1", "mclk2", "mclk3";
+				dma-names = "rx", "tx";
+				dmas = <&sdma 10 24 0>, <&sdma 11 24 0>;
+				status = "disabled";
+			};
+
+			sai3: sai@308c0000 {
+				#sound-dai-cells = <0>;
+				compatible = "fsl,imx7d-sai", "fsl,imx6sx-sai";
+				reg = <0x308c0000 0x10000>;
+				interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clks IMX7D_SAI3_IPG_CLK>,
+					 <&clks IMX7D_SAI3_ROOT_CLK>,
+					 <&clks IMX7D_CLK_DUMMY>,
+					 <&clks IMX7D_CLK_DUMMY>;
+				clock-names = "bus", "mclk1", "mclk2", "mclk3";
+				dma-names = "rx", "tx";
+				dmas = <&sdma 12 24 0>, <&sdma 13 24 0>;
+				status = "disabled";
+			};
+
 			flexcan1: can@30a00000 {
 				compatible = "fsl,imx7d-flexcan", "fsl,imx6q-flexcan";
 				reg = <0x30a00000 0x10000>;