[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 <[email protected]> Signed-off-by: Russell King <[email protected]>
ambv · Jun 8, 2006 · 0c27c5d · 0c27c5d
1 parent d782f33
commit 0c27c5d
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Showing 3 changed files with 6 additions and 0 deletions.
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
@@ -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,
 };
 
 

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
@@ -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);

diff --git a/include/asm-arm/arch-pxa/ohci.h b/include/asm-arm/arch-pxa/ohci.h
@@ -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);