Messages in this thread Patch in this message | | | Date | Thu, 8 Jun 2006 10:34:12 +0200 | From | Pavel Machek <> | Subject | [PATCH] limit power budget on spitz |
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This limits power budget on spitz to 250mA. I'm not sure if it is the right value, but it is certainly better than default 500mA, and prevents nasty failure mode with zd1201.
Signed-off-by: Pavel Machek <pavel@suse.cz>
PATCH FOLLOWS KernelVersion: 2.6.17-rc6-git
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); -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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