[PATCH v3 2/3] Documentation: DT bindings: rockchip-i2s: add capture property

From: Sugar Zhang
Date: Thu Nov 05 2015 - 20:39:06 EST


rockchip,capture-channels: max capture channels, 2 channels default.

Signed-off-by: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx>
---

Changes in v3:
- move property into the Optional properties section

Changes in v2:
- remove unused lrck property

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..ace3b1e 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
@@ -22,6 +22,10 @@ Required properties:
- "i2s_hclk": clock for I2S BUS
- "i2s_clk" : clock for I2S controller

+Optional properties:
+
+- rockchip,capture-channels: max capture channels, if not set, 2 channels default.
+
Example for rk3288 I2S controller:

i2s@ff890000 {
@@ -34,4 +38,5 @@ i2s@ff890000 {
dma-names = "tx", "rx";
clock-names = "i2s_hclk", "i2s_clk";
clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+ rockchip,capture-channels = <2>;
};
--
2.3.6


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