diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
index 946f18705e965cb6fdfa357d0839bb594637f14a..1003f9c1ca8a388b06bf2eed9fd28a5fd2a43724 100644
--- a/arch/arm/boot/dts/rk3066a.dtsi
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -103,6 +103,8 @@
 		dma-names = "tx", "rx";
 		clock-names = "i2s_hclk", "i2s_clk";
 		clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+		rockchip,playback-channels = <8>;
+		rockchip,capture-channels = <2>;
 		status = "disabled";
 	};
 
@@ -118,6 +120,8 @@
 		dma-names = "tx", "rx";
 		clock-names = "i2s_hclk", "i2s_clk";
 		clocks = <&cru HCLK_I2S1>, <&cru SCLK_I2S1>;
+		rockchip,playback-channels = <2>;
+		rockchip,capture-channels = <2>;
 		status = "disabled";
 	};
 
@@ -133,6 +137,8 @@
 		dma-names = "tx", "rx";
 		clock-names = "i2s_hclk", "i2s_clk";
 		clocks = <&cru HCLK_I2S2>, <&cru SCLK_I2S2>;
+		rockchip,playback-channels = <2>;
+		rockchip,capture-channels = <2>;
 		status = "disabled";
 	};
 
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
index 6399942f1840cc4ae485c07040f848d1bc630fea..42a67d8fe129e426d40293a6bf9b800d3a8c9bcf 100644
--- a/arch/arm/boot/dts/rk3188.dtsi
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -118,6 +118,8 @@
 		dma-names = "tx", "rx";
 		clock-names = "i2s_hclk", "i2s_clk";
 		clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+		rockchip,playback-channels = <2>;
+		rockchip,capture-channels = <2>;
 		status = "disabled";
 	};
 
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 16187c39d03575597643fc72b1316876c59e486e..2040a1b0cf764cda6bf5675b5687f68abf58186d 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -776,6 +776,8 @@
 		clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&i2s0_bus>;
+		rockchip,playback-channels = <8>;
+		rockchip,capture-channels = <2>;
 		status = "disabled";
 	};