| Message ID | 07cc981fbf9620459d1ac63e8720eaa2dd110048.1494830885.git.sean.wang@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, May 15, 2017 at 02:59:26PM +0800, sean.wang@mediatek.com wrote: > From: Sean Wang <sean.wang@mediatek.com> > > Document the devicetree bindings for Mediatek High-Speed DMA controller > which could be found on MT7623 SoC or other similar Mediatek SoCs. > > Signed-off-by: Sean Wang <sean.wang@mediatek.com> > --- > .../devicetree/bindings/dma/mtk-hsdma.txt | 30 ++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/mtk-hsdma.txt > > diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt > new file mode 100644 > index 0000000..62cdda4 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt > @@ -0,0 +1,30 @@ > +Mediatek High-Speed DMA Controller > +================================== > + > +This driver follows the generic DMA bindings defined in dma/dma.txt. > + > +Required properties: > + > +- compatible: Must be one of > + "mediatek,mt7623-hsdma". > +- 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. > +- #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: hsdma@1b007000 { dma-controller@... > + 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"; > + status = "okay"; Don't need to show status in examples. With those, Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/dma/mtk-hsdma.txt b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt new file mode 100644 index 0000000..62cdda4 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mtk-hsdma.txt @@ -0,0 +1,30 @@ +Mediatek High-Speed DMA Controller +================================== + +This driver follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "mediatek,mt7623-hsdma". +- 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. +- #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: hsdma@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"; + status = "okay"; + }; + +DMA clients must use the format described in dma/dma.txt file.