On Thu, Jul 07, 2016 at 11:49:46AM +0200, Arnd Bergmann wrote: > This documents the binding used by Alexander Shiyan's DT support for > the clps711x SPI controller. > > I've left the file name to match the ARM platform port name "clps711x" > for consistency with the other bindings, even though the compatible > string refers to the later ep7309 chip. > > Linux no longer supports the old clps711x and ep72xx product lines, > but we still use the name. The entire family is now discontinued > by the manufacturer. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > Cc: Alexander Shiyan <shc_work@xxxxxxx> > --- > .../devicetree/bindings/spi/spi-clps711x.txt | 33 ++++++++++++++++++++++ > 1 file changed, 33 insertions(+) > create mode 100644 Documentation/devicetree/bindings/spi/spi-clps711x.txt > > diff --git a/Documentation/devicetree/bindings/spi/spi-clps711x.txt b/Documentation/devicetree/bindings/spi/spi-clps711x.txt > new file mode 100644 > index 000000000000..4c3ec13f423f > --- /dev/null > +++ b/Documentation/devicetree/bindings/spi/spi-clps711x.txt > @@ -0,0 +1,33 @@ > +Serial Peripheral Interface on Cirrus Logic CL-PS71xx, EP72xx, EP73xx > + > +Required properties > +- #address-cells: must be <1> > +- #size-cells: must be <0> > +- compatible: should include "cirrus,ep7209-spi" > +- reg: Address and length of one register range > +- interrupts: one interrupt line > +- clocks: One entry, refers to the SPI bus clock > +- cs-gpios: Specifies the gpio pins to be used for chipselects. > + See: Documentation/devicetree/bindings/spi/spi-bus.txt > + > +An additional register is present in the system controller, > +which is assumed to be in the same device tree, with and marked > +as compatible with "cirrus,ep7209-syscon3". > + > +Example: > + > +spi@80000500 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "cirrus,ep7209-spi"; > + reg = <0x80000500 0x4>; > + interrupts = <15>; > + clocks = <&clks CLPS711X_CLK_SPI>; > + status = "disabled"; > +}; > + > +syscon3: syscon@80002200 { This looks like it shouldn't be here. > + compatible = "cirrus,ep7209-syscon3", "syscon"; > + reg = <0x80002200 0x40>; > +}; > + > -- > 2.9.0 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html