| Message ID | 1447922229-60552-1-git-send-email-zhongkaihua@huawei.com |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
On Thu, Nov 19, 2015 at 04:37:08PM +0800, Zhong Kaihua wrote: > dt-bindings: spi: Documentation for Hi6220 spi driver > > Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com> > --- > .../devicetree/bindings/spi/spi-hi6220.txt | 45 ++++++++++++++++++++++ > 1 file changed, 45 insertions(+) > create mode 100644 Documentation/devicetree/bindings/spi/spi-hi6220.txt > > diff --git a/Documentation/devicetree/bindings/spi/spi-hi6220.txt b/Documentation/devicetree/bindings/spi/spi-hi6220.txt > new file mode 100644 > index 0000000..91aa169 > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/spi-hi6220.txt > @@ -0,0 +1,45 @@ > +Hi6220 SPI controller > + > +Required properties: > +- compatible : "arm,pl022", "arm,primecell" If this is just a pl022, then you don't need this document as spi_pl022.txt already exists. If HiSilicon has modified this block, then you need an additional HiSi specific compatible string and add it to spi_pl022.txt. > +- reg : Offset and length of the register set for the device > +- interrupts : Should contain SPI controller interrupt > +- num-cs : total number of chipselects > + > +Required Board Specific Properties: > + > +- #address-cells: should be 1. > +- #size-cells: should be 0. > + > +Optional properties: > +- cs-gpios : should specify GPIOs used for chipselects. > + The gpios will be referred to as reg = <index> in the SPI child nodes. > + If unspecified, a single SPI device without a chip select can be used. > +- dmas : Two or more DMA channel specifiers following the convention outlined > + in bindings/dma/dma.txt > +- dma-names: Names for the dma channels, if present. There must be at > + least one channel named "tx" for transmit and named "rx" for > + receive. > + > +Example: > + spi_0: spi@f7106000 { > + compatible = "arm,pl022", "arm,primecell"; > + reg = <0x0 0xf7106000 0x0 0x1000>; > + #address-cells = <1>; > + #size-cells = <0>; > + interrupts = <0 50 4>; > + bus-id = <0>; This should be removed. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/spi/spi-hi6220.txt b/Documentation/devicetree/bindings/spi/spi-hi6220.txt new file mode 100644 index 0000000..91aa169 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/spi-hi6220.txt @@ -0,0 +1,45 @@ +Hi6220 SPI controller + +Required properties: +- compatible : "arm,pl022", "arm,primecell" +- reg : Offset and length of the register set for the device +- interrupts : Should contain SPI controller interrupt +- num-cs : total number of chipselects + +Required Board Specific Properties: + +- #address-cells: should be 1. +- #size-cells: should be 0. + +Optional properties: +- cs-gpios : should specify GPIOs used for chipselects. + The gpios will be referred to as reg = <index> in the SPI child nodes. + If unspecified, a single SPI device without a chip select can be used. +- dmas : Two or more DMA channel specifiers following the convention outlined + in bindings/dma/dma.txt +- dma-names: Names for the dma channels, if present. There must be at + least one channel named "tx" for transmit and named "rx" for + receive. + +Example: + spi_0: spi@f7106000 { + compatible = "arm,pl022", "arm,primecell"; + reg = <0x0 0xf7106000 0x0 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = <0 50 4>; + bus-id = <0>; + enable-dma = <1>; + dmas = <&dma0 12 &dma0 13>; + dma-names = "rx", "tx"; + + clocks = <&clock_sys HI6220_SPI_CLK>; + clock-names = "apb_pclk"; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pmx_func &spi0_cfg_func>; + num-cs = <4>; + cs-gpios = <&gpio6 2 0>, <&gpio6 3 0>, <&gpio6 4 0>, <&gpio6 5 0>; + + status = "ok"; + }; +
dt-bindings: spi: Documentation for Hi6220 spi driver Signed-off-by: Zhong Kaihua <zhongkaihua@huawei.com> --- .../devicetree/bindings/spi/spi-hi6220.txt | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/spi-hi6220.txt