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-rw-r--r--kernel/Documentation/devicetree/bindings/sound/rockchip-i2s.txt6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/kernel/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
index 9b82c20b3..2267d249c 100644
--- a/kernel/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
+++ b/kernel/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
@@ -12,8 +12,6 @@ Required properties:
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: should contain the I2S interrupt.
-- #address-cells: should be 1.
-- #size-cells: should be 0.
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt
- dma-names: should include "tx" and "rx".
@@ -21,6 +19,7 @@ Required properties:
- clock-names: should contain followings:
- "i2s_hclk": clock for I2S BUS
- "i2s_clk" : clock for I2S controller
+- rockchip,capture-channels: max capture channels, if not set, 2 channels default.
Example for rk3288 I2S controller:
@@ -28,10 +27,9 @@ i2s@ff890000 {
compatible = "rockchip,rk3288-i2s", "rockchip,rk3066-i2s";
reg = <0xff890000 0x10000>;
interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
- #address-cells = <1>;
- #size-cells = <0>;
dmas = <&pdma1 0>, <&pdma1 1>;
dma-names = "tx", "rx";
clock-names = "i2s_hclk", "i2s_clk";
clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+ rockchip,capture-channels = <2>;
};