This patch adds #dma-cells property to PL330 DMA controller nodes for supporting generic dma dt bindings on samsung exynos5250 platform.
Signed-off-by: Padmavathi Venna <padm...@samsung.com> --- .../devicetree/bindings/dma/arm-pl330.txt | 9 ++++++--- arch/arm/boot/dts/exynos5250.dtsi | 4 ++++ 2 files changed, 10 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/dma/arm-pl330.txt b/Documentation/devicetree/bindings/dma/arm-pl330.txt index 36e27d5..457a233 100644 --- a/Documentation/devicetree/bindings/dma/arm-pl330.txt +++ b/Documentation/devicetree/bindings/dma/arm-pl330.txt @@ -8,6 +8,8 @@ Required properties: - reg: physical base address of the controller and length of memory mapped region. - interrupts: interrupt number to the cpu. + - #dma-cells: must be at least 1. used to represent the number of integer + cells in the dmas property of client device. Optional properties: - dma-coherent : Present if dma operations are coherent @@ -18,6 +20,7 @@ Example: compatible = "arm,pl330", "arm,primecell"; reg = <0x12680000 0x1000>; interrupts = <99>; + #dma-cells = <1>; }; Client drivers (device nodes requiring dma transfers from dev-to-mem or @@ -27,7 +30,7 @@ as shown below. [property name] = <[phandle of the dma controller] [dma request id]>; where 'dma request id' is the dma request number which is connected - to the client controller. The 'property name' is recommended to be - of the form <name>-dma-channel. + to the client controller. The 'property name' is 'dmas' as recommended + by the generic dma device tree binding helpers. - Example: tx-dma-channel = <&pdma0 12>; + Example: dmas = <&pdma0 12>; diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi index 30485de..46bae01 100644 --- a/arch/arm/boot/dts/exynos5250.dtsi +++ b/arch/arm/boot/dts/exynos5250.dtsi @@ -286,24 +286,28 @@ compatible = "arm,pl330", "arm,primecell"; reg = <0x121A0000 0x1000>; interrupts = <0 34 0>; + #dma-cells = <1>; }; pdma1: pdma@121B0000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x121B0000 0x1000>; interrupts = <0 35 0>; + #dma-cells = <1>; }; mdma0: mdma@10800000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x10800000 0x1000>; interrupts = <0 33 0>; + #dma-cells = <1>; }; mdma1: mdma@11C10000 { compatible = "arm,pl330", "arm,primecell"; reg = <0x11C10000 0x1000>; interrupts = <0 124 0>; + #dma-cells = <1>; }; }; -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html