rockchip,capture-channels: max capture channels, 2 channels default.
rockchip,lrck-mode: 0: rxtx separate, 1: tx share, 2: rx share.
default use 'rxtx separate' mode.
Signed-off-by: Sugar Zhang <sugar.zh...@rock-chips.com>
---
Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
index 9b82c20..4066b85 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
@@ -21,6 +21,9 @@ 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.
+- rockchip,lrck-mode: select lrck use mode: 0: rxtx separate, 1: tx share, 2:
rx share.
+ default use 'rxtx seprate' mode.
Example for rk3288 I2S controller:
@@ -34,4 +37,6 @@ i2s@ff890000 {
dma-names = "tx", "rx";
clock-names = "i2s_hclk", "i2s_clk";
clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+ rockchip,capture-channels = <2>;
+ rockchip,lrck-mode = <0>;
};
--
2.3.6
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