Both RK3126 and RK3128 have a 2-channel I2S IP block.
Add the respective node for it.

Signed-off-by: Alex Bee <knaerz...@gmail.com>
---
 arch/arm/boot/dts/rockchip/rk312x.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/rockchip/rk312x.dtsi 
b/arch/arm/boot/dts/rockchip/rk312x.dtsi
index 024d801a9792..ce3f03c3532e 100644
--- a/arch/arm/boot/dts/rockchip/rk312x.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk312x.dtsi
@@ -351,6 +351,22 @@ emmc: mmc@1021c000 {
                status = "disabled";
        };
 
+       i2s_2ch: i2s@10220000 {
+               compatible = "rockchip,rk3128-i2s", "rockchip,rk3066-i2s";
+               reg = <0x10220000 0x1000>;
+               interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+               clocks = <&cru SCLK_I2S1>, <&cru HCLK_I2S_2CH>;
+               clock-names = "i2s_clk", "i2s_hclk";
+               dmas = <&pdma 0>, <&pdma 1>;
+               dma-names = "tx", "rx";
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2s_bus>;
+               rockchip,playback-channels = <2>;
+               rockchip,capture-channels = <2>;
+               #sound-dai-cells = <0>;
+               status = "disabled";
+       };
+
        nfc: nand-controller@10500000 {
                compatible = "rockchip,rk3128-nfc", "rockchip,rk2928-nfc";
                reg = <0x10500000 0x4000>;
-- 
2.42.0

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