xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

USB: add do_wakeup parameter for PCI HCD suspend

Browse Source 
This patch (as1385) adds a "do_wakeup" parameter to the pci_suspend
method used by PCI-based host controller drivers.  ehci-hcd in
particular needs to know whether or not to enable wakeup when
suspending a controller.  Although that information is currently
available through device_may_wakeup(), when support is added for
runtime suspend this will no longer be true.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Stern
2010-06-25 14:02:14 -04:00
committed by Greg Kroah-Hartman
parent 057c58bfb1
commit 4147200d25
9 changed files with 17 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/host/ehci-pci.c
View File

@@ -277,7 +277,7 @@ done:
* Also they depend on separate root hub suspend/resume.
*/
static int ehci_pci_suspend(struct usb_hcd *hcd)
static int ehci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
unsigned long flags;
@@ -291,7 +291,7 @@ static int ehci_pci_suspend(struct usb_hcd *hcd)
* the root hub is either suspended or stopped.
*/
spin_lock_irqsave (&ehci->lock, flags);
ehci_prepare_ports_for_controller_suspend(ehci);
ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup);
ehci_writel(ehci, 0, &ehci->regs->intr_enable);
(void)ehci_readl(ehci, &ehci->regs->intr_enable);