These are I2S engines internally connected to the built-in audio codec.
Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
---
Changed in v4: nothing
Changed in v3:
- removed the 4 optional clocks
Changed in v2: nothing
---
arch/arm64/boot/dts/rockchip/rk3308.dtsi | 42 ++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index cfc0a87b5195..662c55fe9b77 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -578,6 +578,48 @@ dmac1: dma-controller@ff2d0000 {
#dma-cells = <1>;
};
+ /*
+ * - can be clock producer or consumer
+ * - up to 8 capture channels and 2 playback channels
+ * - connected internally to audio codec
+ */
+ i2s_8ch_2: i2s@ff320000 {
+ compatible = "rockchip,rk3308-i2s-tdm";
+ reg = <0x0 0xff320000 0x0 0x1000>;
+ interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "mclk_tx", "mclk_rx", "hclk";
+ clocks = <&cru SCLK_I2S2_8CH_TX>,
+ <&cru SCLK_I2S2_8CH_RX>,
+ <&cru HCLK_I2S2_8CH>;
+ dmas = <&dmac1 5>, <&dmac1 4>;
+ dma-names = "rx", "tx";
+ resets = <&cru SRST_I2S2_8CH_TX_M>, <&cru SRST_I2S2_8CH_RX_M>;
+ reset-names = "tx-m", "rx-m";
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
+ /*
+ * - can be clock consumer only
+ * - up to 4 capture channels, no playback
+ * - connected internally to audio codec
+ */
+ i2s_8ch_3: i2s@ff330000 {
+ compatible = "rockchip,rk3308-i2s-tdm";
+ reg = <0x0 0xff330000 0x0 0x1000>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "mclk_tx", "mclk_rx", "hclk";
+ clocks = <&cru SCLK_I2S3_8CH_TX>,
+ <&cru SCLK_I2S3_8CH_RX>,
+ <&cru HCLK_I2S3_8CH>;
+ dmas = <&dmac1 7>;
+ dma-names = "rx";
+ resets = <&cru SRST_I2S3_8CH_TX_M>, <&cru SRST_I2S3_8CH_RX_M>;
+ reset-names = "tx-m", "rx-m";
+ rockchip,grf = <&grf>;
+ status = "disabled";
+ };
+
i2s_2ch_0: i2s@ff350000 {
compatible = "rockchip,rk3308-i2s", "rockchip,rk3066-i2s";
reg = <0x0 0xff350000 0x0 0x1000>;
--
2.34.1
