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Commit 09a5ae80 authored by Sachin Kamat's avatar Sachin Kamat Committed by Mark Brown
Browse files

spi: samsung: Update binding documentation 



Samsung SPI driver uses generic DMA bindings. Update the documentation
accordingly.

Signed-off-by: default avatarSachin Kamat <sachin.kamat@samsung.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 7171511e

Documentation/devicetree/bindings/spi/spi-samsung.txt

+9 −9
Original line number Diff line number Diff line
@@ -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: