| Message ID | 20190818051754.17548-1-jassisinghbrar@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add support for AHB DMA controller on Milbeaut series | expand |
On Sun, 18 Aug 2019 00:17:54 -0500, jassisinghbrar@gmail.com wrote: > From: Jassi Brar <jaswinder.singh@linaro.org> > > Document the devicetree bindings for Socionext Milbeaut HDMAC > controller. Controller has upto 8 floating channels, that need > a predefined slave-id to work from a set of slaves. > > Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> > --- > .../bindings/dma/milbeaut-m10v-hdmac.txt | 32 +++++++++++++++++++ > 1 file changed, 32 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt > Reviewed-by: Rob Herring <robh@kernel.org>
On Wed, Sep 4, 2019 at 12:51 AM Vinod Koul <vkoul@kernel.org> wrote: > > On 18-08-19, 00:17, jassisinghbrar@gmail.com wrote: > > From: Jassi Brar <jaswinder.singh@linaro.org> > > > > Document the devicetree bindings for Socionext Milbeaut HDMAC > > controller. Controller has upto 8 floating channels, that need > > a predefined slave-id to work from a set of slaves. > > > > Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org> > > --- > > .../bindings/dma/milbeaut-m10v-hdmac.txt | 32 +++++++++++++++++++ > > 1 file changed, 32 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt > > > > diff --git a/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt > > new file mode 100644 > > index 000000000000..f0960724f1c7 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt > > @@ -0,0 +1,32 @@ > > +* Milbeaut AHB DMA Controller > > + > > +Milbeaut AHB DMA controller has transfer capability bellow. > > s/bellow/below: > > > + - device to memory transfer > > + - memory to device transfer > > + > > +Required property: > > +- compatible: Should be "socionext,milbeaut-m10v-hdmac" > > +- reg: Should contain DMA registers location and length. > > +- interrupts: Should contain all of the per-channel DMA interrupts. > > + Number of channels is configurable - 2, 4 or 8, so > > + the number of interrupts specfied should be {2,4,8}. > > s/specfied/specified > Hi Vinod, Do you want me to spin yet another revision for the two types in text? thnx
diff --git a/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt new file mode 100644 index 000000000000..f0960724f1c7 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt @@ -0,0 +1,32 @@ +* Milbeaut AHB DMA Controller + +Milbeaut AHB DMA controller has transfer capability bellow. + - device to memory transfer + - memory to device transfer + +Required property: +- compatible: Should be "socionext,milbeaut-m10v-hdmac" +- reg: Should contain DMA registers location and length. +- interrupts: Should contain all of the per-channel DMA interrupts. + Number of channels is configurable - 2, 4 or 8, so + the number of interrupts specfied should be {2,4,8}. +- #dma-cells: Should be 1. Specify the ID of the slave. +- clocks: Phandle to the clock used by the HDMAC module. + + +Example: + + hdmac1: dma-controller@1e110000 { + compatible = "socionext,milbeaut-m10v-hdmac"; + reg = <0x1e110000 0x10000>; + interrupts = <0 132 4>, + <0 133 4>, + <0 134 4>, + <0 135 4>, + <0 136 4>, + <0 137 4>, + <0 138 4>, + <0 139 4>; + #dma-cells = <1>; + clocks = <&dummy_clk>; + };