diff options
| author | Olav Kongas <ok@artecdesign.ee> | 2005-12-27 15:04:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-02-01 02:23:42 +0100 |
| commit | 0be930c546ad056cad5780ee9424a28cf979cb42 (patch) | |
| tree | 4a383b75aa58c69ad5588d4274db2fe83d4a4247 | |
| parent | [PATCH] USB: add might_sleep() to usb_unlink_urb() to warn developers (diff) | |
| download | linux-0be930c546ad056cad5780ee9424a28cf979cb42.tar.xz linux-0be930c546ad056cad5780ee9424a28cf979cb42.zip | |
[PATCH] USB: isp116x-hcd: replace mdelay() by msleep()
Replace mdelay() by msleep() in bus_suspend(); the rest of the system will
gain 7ms. The related code is reorganized to minimize the number of
locking/unlocking calls.
The last hunk of the patch is the formatting change by Lindent.
Signed-off-by: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/host/isp116x-hcd.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 584b8dc65119..972ce04889f8 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -1420,20 +1420,22 @@ static int isp116x_bus_suspend(struct usb_hcd *hcd) int ret = 0; spin_lock_irqsave(&isp116x->lock, flags); - val = isp116x_read_reg32(isp116x, HCCONTROL); + switch (val & HCCONTROL_HCFS) { case HCCONTROL_USB_OPER: + spin_unlock_irqrestore(&isp116x->lock, flags); val &= (~HCCONTROL_HCFS & ~HCCONTROL_RWE); val |= HCCONTROL_USB_SUSPEND; if (device_may_wakeup(&hcd->self.root_hub->dev)) val |= HCCONTROL_RWE; /* Wait for usb transfers to finish */ - mdelay(2); + msleep(2); + spin_lock_irqsave(&isp116x->lock, flags); isp116x_write_reg32(isp116x, HCCONTROL, val); + spin_unlock_irqrestore(&isp116x->lock, flags); /* Wait for devices to suspend */ - mdelay(5); - case HCCONTROL_USB_SUSPEND: + msleep(5); break; case HCCONTROL_USB_RESUME: isp116x_write_reg32(isp116x, HCCONTROL, @@ -1441,12 +1443,11 @@ static int isp116x_bus_suspend(struct usb_hcd *hcd) HCCONTROL_USB_RESET); case HCCONTROL_USB_RESET: ret = -EBUSY; + default: /* HCCONTROL_USB_SUSPEND */ + spin_unlock_irqrestore(&isp116x->lock, flags); break; - default: - ret = -EINVAL; } - spin_unlock_irqrestore(&isp116x->lock, flags); return ret; } @@ -1715,9 +1716,9 @@ static struct platform_driver isp116x_driver = { .remove = isp116x_remove, .suspend = isp116x_suspend, .resume = isp116x_resume, - .driver = { - .name = (char *)hcd_name, - }, + .driver = { + .name = (char *)hcd_name, + }, }; /*-----------------------------------------------------------------*/ |