Add the option to choose clock on which pin input to SSC (as slave). Default is on TK pin to SSC, add "atmel,clk-from-rk-pin" option to specify the clock is on RK pin to SSC.
Signed-off-by: Bo Shen voice.shen@atmel.com --- Changes in v2: - using "-" replace "_" in binding document
Documentation/devicetree/bindings/sound/atmel-wm8904.txt | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt index 8bbe50c..2d86e2b 100644 --- a/Documentation/devicetree/bindings/sound/atmel-wm8904.txt +++ b/Documentation/devicetree/bindings/sound/atmel-wm8904.txt @@ -33,6 +33,12 @@ Required properties:
Optional properties: - pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt + - atmel,clk-from-rk-pin: bool property. + - When SSC works in slave mode, according to the hardware design, the + clock can get from TK pin, and also can get from RK pin. So, add + this parameter to choose where the clock from. + - By default the clock is from TK pin, if the clock from RK pin, this + property is needed.
Example: sound {