ARM: dts: add rk3288 i2s controller

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@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index be276bdfde045813d8259032e72b64602f427c3b..874e66dbb93be117c5ff7afda004d8151b3603fd 100644 (file)
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -469,6 +469,21 @@
                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_bus>;
+               status = "disabled";
+       };
+
        gic: interrupt-controller@ffc01000 {
                compatible = "arm,gic-400";
                interrupt-controller;
@@ -661,6 +676,17 @@
                        };
                };
 
+               i2s0 {
+                       i2s0_bus: i2s0-bus {
+                               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>;