redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

[PATCH] USB: isp116x-hcd: replace mdelay() by msleep()

Browse source 
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>
This commit is contained in:
Olav Kongas 2005-12-27 16:04:02 +02:00 committed by Greg Kroah-Hartman
parent e9aa795aae
commit 0be930c546
1 changed files with 11 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
drivers/usb/host/isp116x-hcd.c
View file

@ -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,
},
};
/*-----------------------------------------------------------------*/