[ARM] 3547/1: PXA-OHCI: Allow platforms to specify a power budget

Patch from Richard Purdie

Add a power budget variable to the PXA OHCI platform data and add a
default value for the spitz platform(s) which prevents known failures
with certain USB devices.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index acde886..fafe7c1 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -185,6 +185,9 @@
 	/* Select Power Management Mode */
 	pxa27x_ohci_select_pmm(inf->port_mode);
 
+	if (inf->power_budget)
+		hcd->power_budget = inf->power_budget;
+
 	ohci_hcd_init(hcd_to_ohci(hcd));
 
 	retval = usb_add_hcd(hcd, pdev->resource[1].start, SA_INTERRUPT);