Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a69d0009 authored by Bo Shen's avatar Bo Shen Committed by Mark Brown
Browse files

Binding: atmel-ssc: add option to choose clock 



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: default avatarBo Shen <voice.shen@atmel.com>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 048d4ff8

Documentation/devicetree/bindings/misc/atmel-ssc.txt

+8 −0
Original line number Diff line number Diff line
@@ -17,6 +17,14 @@ Required properties for devices compatible with "atmel,at91sam9g45-ssc": 
  See Documentation/devicetree/bindings/dma/atmel-dma.txt for details.

- dma-names: Must be "tx", "rx".



Optional properties:

  - 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.



Examples:

- PDC transfer:

ssc0: ssc@fffbc000 {