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author | Vinod Koul <vinod.koul@intel.com> | 2018-04-10 06:25:26 +0300 |
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committer | Vinod Koul <vinod.koul@intel.com> | 2018-04-10 06:25:26 +0300 |
commit | c21bd0a86789ed54cf7dfb948c590766484a585c (patch) | |
tree | 726a95e33d5736f3dffda829a87044302ad2a12f /Documentation | |
parent | ab2528c1b19e6e3b5a3713dfe6b054c672b4a498 (diff) | |
parent | e10734e5a0285220f46a37e8bbdfb241acebb04b (diff) | |
download | linux-c21bd0a86789ed54cf7dfb948c590766484a585c.tar.xz |
Merge branch 'topic/mtek' into for-linus
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/dma/mtk-hsdma.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt new file mode 100644 index 000000000000..4bb317359dc6 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt @@ -0,0 +1,33 @@ +MediaTek High-Speed DMA Controller +================================== + +This device follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7622-hsdma": for MT7622 SoC + "mediatek,mt7623-hsdma": for MT7623 SoC +- reg: Should contain the register's base address and length. +- interrupts: Should contain a reference to the interrupt used by this + device. +- clocks: Should be the clock specifiers corresponding to the entry in + clock-names property. +- clock-names: Should contain "hsdma" entries. +- power-domains: Phandle to the power domain that the device is part of +- #dma-cells: The length of the DMA specifier, must be <1>. This one cell + in dmas property of a client device represents the channel + number. +Example: + + hsdma: dma-controller@1b007000 { + compatible = "mediatek,mt7623-hsdma"; + reg = <0 0x1b007000 0 0x1000>; + interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>; + clocks = <ðsys CLK_ETHSYS_HSDMA>; + clock-names = "hsdma"; + power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>; + #dma-cells = <1>; + }; + +DMA clients must use the format described in dma/dma.txt file. |