Re: [PATCH v2 2/3] USB: ohci-platform: Expose no_big_frame_no and num_ports in DT

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On Tue, 14 Oct 2014, Kevin Cernekee wrote:

> On Tue, Oct 14, 2014 at 6:58 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> > On Sat, 11 Oct 2014, Kevin Cernekee wrote:
> >
> >> These quirks are currently set through platform_data; allow DT-based SoCs
> >> to use them too.
> >>
> >> Signed-off-by: Kevin Cernekee <cernekee@xxxxxxxxx>
> >
> >> --- a/drivers/usb/host/ohci-platform.c
> >> +++ b/drivers/usb/host/ohci-platform.c
> >> @@ -175,6 +175,12 @@ static int ohci_platform_probe(struct platform_device *dev)
> >>               if (of_property_read_bool(dev->dev.of_node, "big-endian"))
> >>                       ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;
> >>
> >> +             if (of_property_read_bool(dev->dev.of_node, "no-big-frame-no"))
> >> +                     ohci->flags |= OHCI_QUIRK_FRAME_NO;
> >> +
> >> +             of_property_read_u32(dev->dev.of_node, "num-ports",
> >> +                                  &ohci->num_ports);
> >
> > Does this do the right thing if the property isn't defined?
> 
> In that case, of_property_read_u32() will just return -EINVAL or
> -ENODATA without writing anything to ohci->num_ports, leaving the
> default of 0 in place.

Okay, in that case:

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

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