Am Montag, 6. Juni 2016, 12:27:54 schrieb Mark Rutland: > On Mon, Jun 06, 2016 at 05:20:03PM +0800, Frank Wang wrote: > > Signed-off-by: Frank Wang <frank.wang@xxxxxxxxxxxxxx> > > --- > > > > Changes in v3: > > - Added 'clocks' and 'clock-names' optional properties. > > - Specified 'otg-port' and 'host-port' as the sub-node name. > > > > Changes in v2: > > - Changed vbus_host optional property from gpio to regulator. > > - Specified vbus_otg-supply optional property. > > - Specified otg_id and otg_bvalid property. > > > > .../bindings/phy/phy-rockchip-inno-usb2.txt | 60 > > ++++++++++++++++++++ 1 file changed, 60 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt> > > diff --git > > a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt > > b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt new > > file mode 100644 > > index 0000000..0b4bbbb > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt > > @@ -0,0 +1,60 @@ > > +ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK > > + > > +Required properties (phy (parent) node): > > + - compatible : should be one of the listed compatibles: > > + * "rockchip,rk3366-usb2phy" > > + * "rockchip,rk3399-usb2phy" > > + - #clock-cells : should be 0. > > + - clock-output-names : specify the 480m output clock name. > > + > > +Optional properties: > > + - clocks : phandle + phy specifier pair, for the input clock of phy. > > + - clock-names : input clock name of phy, must be "phyclk". > > + - vbus_host-supply : phandle to a regulator that supplies host vbus. > > + - vbus_otg-supply : phandle to a regulator that supplies otg vbus. > > Nit: s/_/-/ here. Something I only stumbled over yesterday for the first time on my rk3288- popmetal: The phy subnodes seem to be able to use a generic phy-supply property from inside the phy-core itself, see: https://github.com/mmind/linux-rockchip/commit/93739f521fc65f44524b00c9aaf6db46bca94e02#diff-ddf3e45ebb753d6debf57022003a1a57R597 for my WIP code for that other board. > Otherwise the rest of this looks generally fine, though I'm confused as > to how you address the programming interface(s), given none are > described. I think that comes generally down to phy_power_on and phy_power_off from the host driver (ehci / dwc2 / whatever) using the generic phy interface. The usb2 phys on Rockchip SoCs seem always pretty easy to handle, while the new additional typeC phy seems to require more work Heiko > > + > > +Required nodes : a sub-node is required for each port the phy provides. > > + The sub-node name is used to identify host or otg port, > > + and shall be the following entries: > > + * "otg-port" : the name of otg port. > > + * "host-port" : the name of host port. > > + > > +Required properties (port (child) node): > > + - #phy-cells : must be 0. See ./phy-bindings.txt for details. > > + - interrupts : specify an interrupt for each entry in interrupt-names. > > + - interrupt-names : a list which shall be the following entries: > > + * "otg_id" : for the otg id interrupt. > > + * "otg_bvalid" : for the otg vbus interrupt. > > + * "linestate" : for the host/otg linestate interrupt. > > + > > +Example: > > + > > +grf: syscon@ff770000 { > > + compatible = "rockchip,rk3366-grf", "syscon", "simple-mfd"; > > + #address-cells = <1>; > > + #size-cells = <1>; > > + > > +... > > + > > + u2phy: usb2-phy { > > + compatible = "rockchip,rk3366-usb2phy"; > > + #clock-cells = <0>; > > + clock-output-names = "sclk_otgphy0_480m"; > > + > > + u2phy_otg: otg-port { > > + #phy-cells = <0>; > > + interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>, > > + <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>, > > + <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>; > > + interrupt-names = "otg_id", "otg_bvalid", "linestate"; > > + status = "okay"; > > + }; > > + > > + u2phy_host: host-port { > > + #phy-cells = <0>; > > + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>; > > + interrupt-names = "linestate"; > > + status = "okay"; > > + }; > > + }; > > +}; -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
