From a69d0009aad51e16bf294d78a3b2e4fe655cf10f Mon Sep 17 00:00:00 2001 From: Bo Shen Date: Mon, 10 Feb 2014 14:09:46 +0800 Subject: [PATCH] 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: Bo Shen Acked-by: Nicolas Ferre Signed-off-by: Mark Brown --- 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 60960b2755f4..efc98ea1f23d 100644 --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt @@ -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 { -- 2.34.1