USB: ehci: omap: use default interrupt threshold
Anand Gadiyar [Fri, 12 Feb 2010 12:18:59 +0000 (17:18 +0530)]
The current driver reduces the interrupt threshold to 1 microframe.
This was an accidental change and is not really required.
The default of 8 microframes will do just fine. So change it back.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/ehci-omap.c

index 24d3d52..bd8922a 100644 (file)
@@ -651,10 +651,6 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
        /* cache this readonly data; minimize chip reads */
        omap->ehci->hcs_params = readl(&omap->ehci->caps->hcs_params);
 
-       /* SET 1 micro-frame Interrupt interval */
-       writel(readl(&omap->ehci->regs->command) | (1 << 16),
-                       &omap->ehci->regs->command);
-
        ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
        if (ret) {
                dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);