On Mon, Oct 10, 2016 at 02:30:23PM +0200, Maxime Ripard wrote: > On Fri, Oct 07, 2016 at 10:25:50AM +0200, Corentin Labbe wrote: > > This patch adds documentation for Device-Tree bindings for the > > Allwinner sun8i-emac driver. > > > > Signed-off-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx> > > --- > > .../bindings/net/allwinner,sun8i-emac.txt | 70 ++++++++++++++++++++++ > > 1 file changed, 70 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/net/allwinner,sun8i-emac.txt > > > > diff --git a/Documentation/devicetree/bindings/net/allwinner,sun8i-emac.txt b/Documentation/devicetree/bindings/net/allwinner,sun8i-emac.txt > > new file mode 100644 > > index 0000000..92e4ef3b > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/net/allwinner,sun8i-emac.txt > > @@ -0,0 +1,70 @@ > > +* Allwinner sun8i EMAC ethernet controller > > + > > +Required properties: > > +- compatible: should be one of the following string: > > + "allwinner,sun8i-a83t-emac" > > + "allwinner,sun8i-h3-emac" > > + "allwinner,sun50i-a64-emac" > > +- reg: address and length of the register for the device. > > +- syscon: A phandle to the syscon of the SoC > > +- interrupts: interrupt for the device > > +- clocks: A phandle to the reference clock for this device > > +- clock-names: should be "ahb" > > +- resets: A phandle to the reset control for this device > > +- reset-names: should be "ahb" > > +- phy-mode: See ethernet.txt > > +- phy-handle: See ethernet.txt > > +- #address-cells: shall be 1 > > +- #size-cells: shall be 0 > > + > > +Optional properties: > > +- allwinner,tx-delay: TX clock delay chain value. Range value is 0-0x07. Default is 0) > > +- allwinner,rx-delay: RX clock delay chain value. Range value is 0-0x1F. Default is 0) > > +Both delay properties does not have units, there are arbitrary value. > > +The TX/RX clock delay chain settings are board specific and could be found > > +in vendor FEX files. > > + > > +Optional properties for "allwinner,sun8i-h3-emac": > > +- allwinner,leds-active-low: EPHY LEDs are active low > > + > > +Required child node of emac: > > +- mdio bus node: should be named mdio > > + > > +Required properties of the mdio node: > > +- #address-cells: shall be 1 > > +- #size-cells: shall be 0 > > + > > +The device node referenced by "phy" or "phy-handle" should be a child node > > +of the mdio node. See phy.txt for the generic PHY bindings. > > + > > +Required properties of the phy node with "allwinner,sun8i-h3-emac": > > +- clocks: an extra phandle to the reference clock for the EPHY > > +- resets: an extra phandle to the reset control for the EPHY > > + > > +Example: > > + > > +emac: ethernet@01c0b000 { > > + compatible = "allwinner,sun8i-h3-emac"; > > + syscon = <&syscon>; > > + reg = <0x01c0b000 0x104>; > > + interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>; > > + resets = <&ccu RST_BUS_EMAC>; > > + reset-names = "ahb"; > > + clocks = <&ccu CLK_BUS_EMAC>; > > + clock-names = "ahb"; > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + phy = <&int_mii_phy>; > > + phy-mode = "mii"; > > + allwinner,leds-active-low; > > + mdio: mdio { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + int_mii_phy: ethernet-phy@1 { > > + reg = <1>; > > + clocks = <&ccu CLK_BUS_EPHY>; > > + resets = <&ccu RST_BUS_EPHY>; > > That works for me, let's see how the DT maintainers feel about it. The phy should have a compatible string since you have extra properties. Rob -- 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