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authorLee Jones <lee.jones@linaro.org>2013-05-15 10:51:59 +0100
committerLinus Walleij <linus.walleij@linaro.org>2013-06-04 11:12:11 +0200
commita7dacb68b35a193d9bdaabde1e4e98140d81a991 (patch)
tree61229caedb330dba8e97ff64af7c3d0516988702 /Documentation/devicetree/bindings/dma
parent8cc5af1255966ed82117249a64fe8b13edabc8c5 (diff)
dmaengine: ste_dma40: Allow memcpy channels to be configured from DT
At this moment in time the memcpy channels which can be used by the D40 are fixed, as each supported platform in Mainline uses the same ones. However, platforms do exist which don't follow this convention, so these will need to be tailored. Fortunately, these platforms will be DT only, so this change has very little impact on platform data. Cc: Dan Williams <djbw@fb.com> Cc: Per Forlin <per.forlin@stericsson.com> Cc: Rabin Vincent <rabin@rab.in> Acked-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
-rw-r--r--Documentation/devicetree/bindings/dma/ste-dma40.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/ste-dma40.txt b/Documentation/devicetree/bindings/dma/ste-dma40.txt
index 2679a873522d..aa272d866f6e 100644
--- a/Documentation/devicetree/bindings/dma/ste-dma40.txt
+++ b/Documentation/devicetree/bindings/dma/ste-dma40.txt
@@ -6,6 +6,7 @@ Required properties:
- reg-names: Names of the above areas to use during resource look-up
- interrupt: Should contain the DMAC interrupt number
- #dma-cells: must be <3>
+- memcpy-channels: Channels to be used for memcpy
Optional properties:
- dma-channels: Number of channels supported by hardware - if not present
@@ -21,6 +22,7 @@ Example:
interrupts = <0 25 0x4>;
#dma-cells = <2>;
+ memcpy-channels = <56 57 58 59 60>;
dma-channels = <8>;
};