LoongArch: dts: Add I2S support to Loongson-2K1000

The module is supported, adding it.

Not all Loongson-2K1000 boards have an i2s interface, here is an example
of enabling it:

sound {
	compatible = "loongson,ls-audio-card";
	model = "Loongson-ASoC";
	mclk-fs = <512>;

	cpu {
		sound-dai = <&i2s>;
	};

	codec {
		sound-dai = <&uda1342>;
	};
};

&apbdma2 {
	status = "okay";
};

&apbdma3 {
	status = "okay";
};

&i2c3 {
	status = "okay";

	pinctrl-0 = <&i2c1_pins_default>;
	pinctrl-names = "default";

	#address-cells = <1>;
	#size-cells = <0>;

	uda1342: codec@1a {
		compatible = "nxp,uda1342";
		reg = <0x1a>;
		#sound-dai-cells = <0>;
	};
};

&i2s {
	status = "okay";

	pinctrl-0 = <&hda_pins_default>;
	pinctrl-names = "default";
};

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
index 92180140eb56e4494cae018530b94a4a09d99e0f..8dff2aa5241717b0fb2a31637bd5f6a56c8ea902 100644 (file)
--- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi
+++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi
@@ -266,7 +266,7 @@
                        status = "disabled";
                };
 
-               dma-controller@1fe00c20 {
+               apbdma2: dma-controller@1fe00c20 {
                        compatible = "loongson,ls2k1000-apbdma";
                        reg = <0x0 0x1fe00c20 0x0 0x8>;
                        interrupt-parent = <&liointc1>;
@@ -276,7 +276,7 @@
                        status = "disabled";
                };
 
-               dma-controller@1fe00c30 {
+               apbdma3: dma-controller@1fe00c30 {
                        compatible = "loongson,ls2k1000-apbdma";
                        reg = <0x0 0x1fe00c30 0x0 0x8>;
                        interrupt-parent = <&liointc1>;
@@ -352,6 +352,19 @@
                        status = "disabled";
                };
 
+               i2s: i2s@1fe2d000 {
+                       compatible = "loongson,ls2k1000-i2s";
+                       reg = <0 0x1fe2d000 0 0x14>,
+                             <0 0x1fe00438 0 0x8>;
+                       interrupt-parent = <&liointc0>;
+                       interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&clk LOONGSON2_APB_CLK>;
+                       dmas = <&apbdma2 0>, <&apbdma3 0>;
+                       dma-names = "tx", "rx";
+                       #sound-dai-cells = <0>;
+                       status = "disabled";
+               };
+
                spi0: spi@1fff0220 {
                        compatible = "loongson,ls2k1000-spi";
                        reg = <0x0 0x1fff0220 0x0 0x10>;