[PATCH 5/7] IBM Akebono: Add support to the EHCI platform driver for Akebono
Benjamin Herrenschmidt
benh at kernel.crashing.org
Wed Nov 6 06:52:13 EST 2013
On Tue, 2013-11-05 at 10:04 -0500, Alan Stern wrote:
> On Tue, 5 Nov 2013, Alistair Popple wrote:
>
> > The IBM Akebono board has an EHCI compliant USB host interface. This
> > patch adds support for it to the EHCI platform driver.
> >
> > Signed-off-by: Alistair Popple <alistair at popple.id.au>
> > Cc: Alan Stern <stern at rowland.harvard.edu>
> > Cc: linux-usb at vger.kernel.org
> > ---
> > drivers/usb/host/ehci-platform.c | 5 +++--
> > 1 file changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
> > index f6b790c..0a67616 100644
> > --- a/drivers/usb/host/ehci-platform.c
> > +++ b/drivers/usb/host/ehci-platform.c
> > @@ -203,9 +203,10 @@ static int ehci_platform_resume(struct device *dev)
> > #define ehci_platform_resume NULL
> > #endif /* CONFIG_PM */
> >
> > -static const struct of_device_id vt8500_ehci_ids[] = {
> > +static const struct of_device_id ehci_platform_ids[] = {
> > { .compatible = "via,vt8500-ehci", },
> > { .compatible = "wm,prizm-ehci", },
> > + { .compatible = "ibm,akebono-ehci", },
> > {}
> > };
Why ? Do we need to add an entry for every platform in there ? Besides,
it probably should be the SoC name not the platform here....
Why not simply a generic compatible "usb-ehci" ? It's a standard
programming interface, there are no specific quirks, we shouldn't
need to have to add new entries to the driver like that for every
new SoC/platform.
> > @@ -229,7 +230,7 @@ static struct platform_driver ehci_platform_driver = {
> > .owner = THIS_MODULE,
> > .name = "ehci-platform",
> > .pm = &ehci_platform_pm_ops,
> > - .of_match_table = vt8500_ehci_ids,
> > + .of_match_table = ehci_platform_ids,
> > }
> > };
>
> Acked-by: Alan Stern <stern at rowland.harvard.edu>
>
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