1 # SPDX-License-Identifier: GPL-2.0
4 $id: http://devicetree.org/schemas/sound/rockchip-i2s.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Rockchip I2S controller
10 The I2S bus (Inter-IC sound bus) is a serial link for digital
11 audio data transfer between devices in the system.
14 - Heiko Stuebner <heiko@sntech.de>
19 - const: rockchip,rk3066-i2s
32 - const: rockchip,rk3066-i2s
42 - description: clock for I2S controller
43 - description: clock for I2S BUS
72 rockchip,capture-channels:
73 $ref: /schemas/types.yaml#/definitions/uint32
76 Max capture channels, if not set, 2 channels default.
78 rockchip,playback-channels:
79 $ref: /schemas/types.yaml#/definitions/uint32
82 Max playback channels, if not set, 8 channels default.
85 $ref: /schemas/types.yaml#/definitions/phandle
87 The phandle of the syscon node for the GRF register.
88 Required property for controllers which support multi channel
104 additionalProperties: false
108 #include <dt-bindings/clock/rk3288-cru.h>
109 #include <dt-bindings/interrupt-controller/arm-gic.h>
110 #include <dt-bindings/interrupt-controller/irq.h>
112 compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
113 reg = <0xff890000 0x10000>;
114 interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
115 clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S0>;
116 clock-names = "i2s_clk", "i2s_hclk";
117 dmas = <&pdma1 0>, <&pdma1 1>;
118 dma-names = "tx", "rx";
119 rockchip,capture-channels = <2>;
120 rockchip,playback-channels = <8>;
121 #sound-dai-cells = <0>;