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authorSachin Kamat <sachin.kamat@samsung.com>2014-07-11 09:11:03 (GMT)
committerMark Brown <broonie@linaro.org>2014-07-11 13:02:23 (GMT)
commit09a5ae80be1caf42418045448fb291388a1b16c6 (patch)
treecf0690d300d663bf5a6c28f7a15e9a379c51bc31 /Documentation/devicetree/bindings/spi
parent7171511eaec5bf23fb06078f59784a3a0626b38f (diff)
spi: samsung: Update binding documentation
Samsung SPI driver uses generic DMA bindings. Update the documentation accordingly. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/spi')
-rw-r--r--Documentation/devicetree/bindings/spi/spi-samsung.txt18
1 files changed, 9 insertions, 9 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-samsung.txt b/Documentation/devicetree/bindings/spi/spi-samsung.txt
index 86aa061..655b665 100644
--- a/Documentation/devicetree/bindings/spi/spi-samsung.txt
+++ b/Documentation/devicetree/bindings/spi/spi-samsung.txt
@@ -18,14 +18,11 @@ Required SoC Specific Properties:
- interrupts: The interrupt number to the cpu. The interrupt specifier format
depends on the interrupt controller.
-[PRELIMINARY: the dma channel allocation will change once there are
-official DMA bindings]
+- dmas : Two or more DMA channel specifiers following the convention outlined
+ in bindings/dma/dma.txt
-- tx-dma-channel: The dma channel specifier for tx operations. The format of
- the dma specifier depends on the dma controller.
-
-- rx-dma-channel: The dma channel specifier for rx operations. The format of
- the dma specifier depends on the dma controller.
+- dma-names: Names for the dma channels. There must be at least one channel
+ named "tx" for transmit and named "rx" for receive.
Required Board Specific Properties:
@@ -74,8 +71,11 @@ Example:
compatible = "samsung,exynos4210-spi";
reg = <0x12d20000 0x100>;
interrupts = <0 66 0>;
- tx-dma-channel = <&pdma0 5>;
- rx-dma-channel = <&pdma0 4>;
+ dmas = <&pdma0 5
+ &pdma0 4>;
+ dma-names = "tx", "rx";
+ #address-cells = <1>;
+ #size-cells = <0>;
};
- Board Specific Portion:

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