diff mbox

[v3,2/2] Binding: atmel-ssc: add option to choose clock

Message ID 1392012586-30790-3-git-send-email-voice.shen@atmel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Bo Shen Feb. 10, 2014, 6:09 a.m. UTC
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 v3:
  - None
Series-changes: 2
  - using "-" replace "_" in binding document

 Documentation/devicetree/bindings/misc/atmel-ssc.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

Comments

Nicolas Ferre Feb. 10, 2014, 9:21 a.m. UTC | #1
On 10/02/2014 07:09, Bo Shen :
> 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>

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

> ---
> Changes in v3:
>   - None
> Series-changes: 2
>   - using "-" replace "_" in binding document
> 
>  Documentation/devicetree/bindings/misc/atmel-ssc.txt | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> index a45ae08..5c1e14e 100644
> --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> @@ -14,6 +14,14 @@ 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 {
>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
index a45ae08..5c1e14e 100644
--- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
+++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
@@ -14,6 +14,14 @@  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 {