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dt-bindings: spi: Add the DMA properties for the SPI dma mode
Add the DMA properties for the SPI dma mode. Signed-off-by: Lanqing Liu <lanqing.liu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -14,6 +14,11 @@ Required properties:
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address on the SPI bus. Should be set to 1.
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address on the SPI bus. Should be set to 1.
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- #size-cells: Should be set to 0.
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- #size-cells: Should be set to 0.
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Optional properties:
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dma-names: Should contain names of the SPI used DMA channel.
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dmas: Should contain DMA channels and DMA slave ids which the SPI used
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sorted in the same order as the dma-names property.
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Example:
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Example:
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spi0: spi@70a00000{
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spi0: spi@70a00000{
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compatible = "sprd,sc9860-spi";
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compatible = "sprd,sc9860-spi";
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@ -21,6 +26,8 @@ spi0: spi@70a00000{
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interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
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interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
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clock-names = "spi", "source","enable";
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clock-names = "spi", "source","enable";
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clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>;
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clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>;
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dma-names = "rx_chn", "tx_chn";
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dmas = <&apdma 11 11>, <&apdma 12 12>;
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#address-cells = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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#size-cells = <0>;
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};
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};
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