On Fri, Feb 21, 2014 at 01:41:03PM +0000, Michal Simek wrote: > Hi Mark, > > On 02/21/2014 01:04 PM, Mark Rutland wrote: > > > > On Thu, Feb 20, 2014 at 06:23:13PM +0000, Felipe Balbi wrote: > >> Hi, > >> > >> On Wed, Feb 19, 2014 at 03:10:45PM +0530, Subbaraya Sundeep Bhatta wrote: > >>> This patch adds xilinx axi usb2 device driver support > >>> > >>> Signed-off-by: Subbaraya Sundeep Bhatta <sbha...@xilinx.com> > >>> --- > >>> .../devicetree/bindings/usb/xilinx_usb.txt | 21 + > >>> drivers/usb/gadget/Kconfig | 14 + > >>> drivers/usb/gadget/Makefile | 1 + > >>> drivers/usb/gadget/xilinx_udc.c | 2045 > >>> ++++++++++++++++++++ > >>> 4 files changed, 2081 insertions(+), 0 deletions(-) > >>> create mode 100644 Documentation/devicetree/bindings/usb/xilinx_usb.txt > >>> create mode 100644 drivers/usb/gadget/xilinx_udc.c > >>> > >>> diff --git a/Documentation/devicetree/bindings/usb/xilinx_usb.txt > >>> b/Documentation/devicetree/bindings/usb/xilinx_usb.txt > >>> new file mode 100644 > >>> index 0000000..acf03ab > >>> --- /dev/null > >>> +++ b/Documentation/devicetree/bindings/usb/xilinx_usb.txt > >>> @@ -0,0 +1,21 @@ > >>> +Xilinx AXI USB2 device controller > >>> + > >>> +Required properties: > >>> +- compatible : Should be "xlnx,axi-usb2-device-4.00.a" > > > > Is "axi-usb2-device" the official device name? > > It is the name of IP which Xilinx have and we are using names in this format. > > > >>> +- reg : Physical base address and size of the Axi USB2 > >>> + device registers map. > >>> +- interrupts : Property with a value describing the interrupt > >>> + number. > > > > Does the device only have a single interrupt? > > I believe so. > > > >>> +- interrupt-parent : Must be core interrupt controller > > > > Is this strictly necessary? > > I am not sure what do you mean by that. If you mean that interrupt-parent > can be written to the root of DTS file then we can setup system with more > interrupt controllers that's why it is required.
At which point it's not a required property of the node... > If we can point to standard interrupt description then please point me to > exact description you would like to see here and we can change it. Unfortunately I'm not aware of a generic interrupts document. I just don't see the point in each document listing interrupt-parent as a requiredp roeprty when it's not. That said this is a trivial detail and not really a blocker. Cheers, Mark -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
