Hi Thierry, On Fri, Mar 4, 2016 at 8:19 AM, Thierry Reding <thierry.reding@xxxxxxxxx> wrote: > From: Thierry Reding <treding@xxxxxxxxxx> > > The NVIDIA Tegra XUSB pad controller provides a set of pads, each with a > set of lanes that are used for PCIe, SATA and USB. > > Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> Thanks, this binding looks much better, IMO. A couple small comments below... > +Port nodes: > +=========== > + > +A required child node named "ports" contains a list of all the ports exposed > +by the XUSB pad controller. Per-port configuration is only required for USB. > + > +USB2 ports: > +----------- > + > +Required properties: > +- status: Defines the operation status of the port. Valid values are: > + - "disabled": the port is disabled > + - "okay": the port is enabled > +- mode: A string that determines the mode in which to run the port. Valid > + values are: > + - "host": for USB host mode > + - "device": for USB device mode > + - "otg": for USB OTG mode > + > +Optional properties: > +- nvidia,internal: A boolean property whose presence determines that a port > + is internal. In the absence of this property the port is considered to be > + external. > +- vbus-supply: phandle to a regulator supplying the VBUS voltage. Both Blaze and Smaug require an offset to be applied to the fused HS_CURR_LEVEL value, so I think we need another property here for that. > +ULPI ports: > +----------- > + > +Optional properties: > +- status: Defines the operation status of the port. Valid values are: > + - "disabled": the port is disabled > + - "okay": the port is enabled > +- nvidia,internal: A boolean property whose presence determines that a port > + is internal. In the absence of this property the port is considered to be > + external. > +- vbus-supply: phandle to a regulator supplying the VBUS voltage. > + > +HSIC ports: > +----------- > + > +Required properties: > +- status: Defines the operation status of the port. Valid values are: > + - "disabled": the port is disabled > + - "okay": the port is enabled > + > +Optional properties: > +- vbus-supply: phandle to a regulator supplying the VBUS voltage. I believe this pin is named VDDIO_HSIC? Also there are several other HSIC pad parameters (STROBE_TRIM, DATA_TRIM, etc.) which probably should be supplied via DT. -- 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
