Hi Frank, Am Dienstag, 7. Juni 2016, 11:31:59 schrieb Frank Wang: > On 2016/6/7 10:59, Frank Wang wrote: > > On 2016/6/6 20:33, Heiko Stübner wrote: > >> 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/93739f521fc65f44524b00c9aa > >> f6db46bca94e02#diff-ddf3e45ebb753d6debf57022003a1a57R597 > >> > >> > >> for my WIP code for that other board. > > > > Ah, good comments! I will try later, if it is practicable, I shall > > correct it into the next patches (patch v4). > > I am sorry to tell you that seems unworkable, because we have two > sub-nodes (phy-ports) in one parent-node (phy), > what is more, the 'phy-supply' property can only put into parent-node, I > believe it can not be differentiated types of ports. > I mean vbus for host and otg are separately. I would disagree ;-) If you look in phy-core.c phy_create(), you can see that the struct phy that gets created, contains its own struct device instance, which then gets the phys of_node (the host+otg subnodes in this context) attached to it. The regulator_get_optional then runs on this struct device, thus making lookup on the subnode. And that works just nicely on my rk3288-popmetal, with its 3 phy subnodes and debugfs/regulator/regulator_summary prints that nicely: vcc_sys 0 12 0 5000mV 0mA 5000mV 5000mV vcc_host_5v 1 1 0 5000mV 0mA 5000mV 5000mV phy-phy.2 0mV 0mV vcc_otg_5v 1 1 0 5000mV 0mA 5000mV 5000mV phy-phy.0 0mV 0mV vcc_sata_5v 2 1 0 5000mV 0mA 5000mV 5000mV phy-phy.1 0mV 0mV Heiko -- 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
