Re: [PATCH] limit power budget on spitz

[Pavel Machek <pavel@suse.cz>]

Hi!

> > diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
> > index acde886..1d8b58c 100644
> > --- a/drivers/usb/host/ohci-pxa27x.c
> > +++ b/drivers/usb/host/ohci-pxa27x.c
> > @@ -185,6 +185,13 @@ int usb_hcd_pxa27x_probe (const struct h
> >  	/* Select Power Management Mode */
> >  	pxa27x_ohci_select_pmm(inf->port_mode);
> >  
> > +	if (machine_is_spitz()) {
> > +		/* Warning, not coming from any official docs. But
> > +		 * spitz is unable to properly power wireless card
> > +		 * claiming 500mA -- usb interface work but wireless
> > +		 * does not. */
> > +		hcd->power_budget = 250;
> > +	}
> >  	ohci_hcd_init(hcd_to_ohci(hcd));
> >  
> >  	retval = usb_add_hcd(hcd, pdev->resource[1].start, SA_INTERRUPT);
> 
> Should this value not be specified by the platform in the platform data
> rather than a set of machine_is_xxx statements in the driver itself? I
> already put most of the infrastructure for that into place.

Well, it has quite few users now, and this is how it works in
ohci-omap. Yes, if we get more of such hooks, it probably needs to be
moved to platform data...

> I also strongly suspect the power supply on the device is limited to
> 150mA.

Thanks!
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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