[PATCH] ARM: dts: add rk3288 i2s controller

[Jianqun]

Add dt for rk3288 i2s controller, since i2s clock pins and data pins
default to be GPIO, this patch also add pinctrl to mux them.

Tested on RK3288 board.

Signed-off-by: Jianqun Xu <jay.xu@xxxxxxxxxxxxxx>
---
 arch/arm/boot/dts/rk3288.dtsi | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 5950b0a..0e2a815 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -130,6 +130,21 @@
 		status = "disabled";
 	};
 
+	i2s: i2s@ff890000 {
+		compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
+		reg = <0xff890000 0x10000>;
+		interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		dmas = <&dmac_bus_s 0>, <&dmac_bus_s 1>;
+		dma-names = "tx", "rx";
+		clock-names = "i2s_hclk", "i2s_clk";
+		clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2s0_clk>;
+		status = "disabled";
+	};
+
 	uart0: serial@ff180000 {
 		compatible = "rockchip,rk3288-uart", "snps,dw-apb-uart";
 		reg = <0xff180000 0x100>;
@@ -463,6 +478,17 @@
 			};
 		};
 
+		i2s0 {
+			i2s0_clk: i2s0_clk {
+				rockchip,pins = <6 0 RK_FUNC_1 &pcfg_pull_none>,
+						<6 1 RK_FUNC_1 &pcfg_pull_none>,
+						<6 2 RK_FUNC_1 &pcfg_pull_none>,
+						<6 3 RK_FUNC_1 &pcfg_pull_none>,
+						<6 4 RK_FUNC_1 &pcfg_pull_none>,
+						<6 8 RK_FUNC_1 &pcfg_pull_none>;
+			};
+		};
+
 		sdmmc {
 			sdmmc_clk: sdmmc-clk {
 				rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none>;
-- 
1.9.1


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