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

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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>
This commit is contained in:
Richard Purdie 2006-06-08 22:44:07 +01:00 committed by Russell King
parent d782f33df7
commit 0c27c5d5b9
3 changed files with 6 additions and 0 deletions
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1
arch/arm/mach-pxa/spitz.c
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@ -371,6 +371,7 @@ static int spitz_ohci_init(struct device *dev)
static struct pxaohci_platform_data spitz_ohci_platform_data = {
.port_mode = PMM_NPS_MODE,
.init = spitz_ohci_init,
.power_budget = 150,
};

3
drivers/usb/host/ohci-pxa27x.c
View file

@ -185,6 +185,9 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
/* 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);

2
include/asm-arm/arch-pxa/ohci.h
View file

@ -11,6 +11,8 @@ struct pxaohci_platform_data {
#define PMM_NPS_MODE 1
#define PMM_GLOBAL_MODE 2
#define PMM_PERPORT_MODE 3
int power_budget;
};
extern void pxa_set_ohci_info(struct pxaohci_platform_data *info);