[PATCH 3/3] Binding: atmel-wm8904: add option to choose clock

[Bo Shen]

Add the option to choose clock output on which pin connect to SSC.
Default is on TK pin to SSC, add clk_from_rk_pin option, the clock
is on RK pin to SSC.

Signed-off-by: Bo Shen <voice.shen at atmel.com>
---

 Documentation/devicetree/bindings/sound/atmel-wm8904.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
index 8bbe50c..68a5c1a 100644
--- a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
+++ b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt
@@ -33,6 +33,8 @@ Required properties:
 
 Optional properties:
   - pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
+  - clk_from_rk_pin: according to hardware design, clk privide on rk pin
+    to ssc device
 
 Example:
 sound {
-- 
1.8.5.2