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| author | Lanqing Liu <lanqing.liu@unisoc.com> | 2019-02-13 08:36:10 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-13 13:20:51 +0100 |
| commit | 6dcb144f7da634e4a0f8837e5076ef48e4d6ac12 (patch) | |
| tree | 8ed2597aa02ced76e27a1a8f9a3e15980f779ad1 /Documentation/devicetree/bindings | |
| parent | spi: sprd: Add the SPI irq function for the SPI DMA mode (diff) | |
| download | linux-6dcb144f7da634e4a0f8837e5076ef48e4d6ac12.tar.xz linux-6dcb144f7da634e4a0f8837e5076ef48e4d6ac12.zip | |
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>
Diffstat (limited to 'Documentation/devicetree/bindings')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/spi-sprd.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/spi/spi-sprd.txt b/Documentation/devicetree/bindings/spi/spi-sprd.txt index bad211a19da4..3c7eacce0ee3 100644 --- a/Documentation/devicetree/bindings/spi/spi-sprd.txt +++ b/Documentation/devicetree/bindings/spi/spi-sprd.txt @@ -14,6 +14,11 @@ Required properties: address on the SPI bus. Should be set to 1. - #size-cells: Should be set to 0. +Optional properties: +dma-names: Should contain names of the SPI used DMA channel. +dmas: Should contain DMA channels and DMA slave ids which the SPI used + sorted in the same order as the dma-names property. + Example: spi0: spi@70a00000{ compatible = "sprd,sc9860-spi"; @@ -21,6 +26,8 @@ spi0: spi@70a00000{ interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; clock-names = "spi", "source","enable"; clocks = <&clk_spi0>, <&ext_26m>, <&clk_ap_apb_gates 5>; + dma-names = "rx_chn", "tx_chn"; + dmas = <&apdma 11 11>, <&apdma 12 12>; #address-cells = <1>; #size-cells = <0>; }; |