@@ -348,6 +348,12 @@
drive-strength = <40>;
};
+ i2s1_pins: i2s1-pins {
+ /* I2S1 does not have external MCLK pin */
+ pins = "PG10", "PG11", "PG12", "PG13";
+ function = "i2s1";
+ };
+
mmc0_pins: mmc0-pins {
pins = "PF0", "PF1", "PF2",
"PF3", "PF4", "PF5";
@@ -430,6 +436,47 @@
status = "disabled";
};
+ i2s0: i2s@1c22000 {
+ #sound-dai-cells = <0>;
+ compatible = "allwinner,sun8i-a83t-i2s";
+ reg = <0x01c22000 0x400>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_I2S0>, <&ccu CLK_I2S0>;
+ clock-names = "apb", "mod";
+ dmas = <&dma 3>, <&dma 3>;
+ resets = <&ccu RST_BUS_I2S0>;
+ dma-names = "rx", "tx";
+ status = "disabled";
+ };
+
+ i2s1: i2s@1c22400 {
+ #sound-dai-cells = <0>;
+ compatible = "allwinner,sun8i-a83t-i2s";
+ reg = <0x01c22400 0x400>;
+ interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_I2S1>, <&ccu CLK_I2S1>;
+ clock-names = "apb", "mod";
+ dmas = <&dma 4>, <&dma 4>;
+ resets = <&ccu RST_BUS_I2S1>;
+ dma-names = "rx", "tx";
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2s1_pins>;
+ status = "disabled";
+ };
+
+ i2s2: i2s@1c22800 {
+ #sound-dai-cells = <0>;
+ compatible = "allwinner,sun8i-a83t-i2s";
+ reg = <0x01c22800 0x400>;
+ interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_I2S2>, <&ccu CLK_I2S2>;
+ clock-names = "apb", "mod";
+ dmas = <&dma 27>;
+ resets = <&ccu RST_BUS_I2S2>;
+ dma-names = "tx";
+ status = "disabled";
+ };
+
uart0: serial@1c28000 {
compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>;
The A83T has 3 I2S controllers. The first is multiplexed with the TDM controller. The pins are generally connected to the codec side of the AXP81x PMIC/codec/RTC chip. The second is free for other uses. The third only supports output, and is connected internally to the HDMI controller for HDMI audio output. This patch adds device nodes for the controllers, and a default pinmux setting for the second controller. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- arch/arm/boot/dts/sun8i-a83t.dtsi | 47 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+)