Messages in this thread | | | Subject | Re: [PATCH] limit power budget on spitz | From | Richard Purdie <> | Date | Thu, 08 Jun 2006 09:50:58 +0100 |
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On Thu, 2006-06-08 at 10:34 +0200, Pavel Machek wrote: > 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.
I also strongly suspect the power supply on the device is limited to 150mA.
Richard
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