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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-07 09:03:39 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-05-07 09:03:39 -0700
commit61906313bd41cde2f9aaa14e461e6108d3e71aaa (patch)
treec84805a9c67e3baf9e5acf13a3f55f7058a9131f /drivers/usb/core
parent3aa2ae74ba630ec9b98736d64aea8e4cb490861d (diff)
parentd48b97b403d23f6df0b990cee652bdf9a52337a3 (diff)
Merge 3.4-rc6 into usb-next
This resolves the conflict with: drivers/usb/host/ehci-tegra.c Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
-rw-r--r--drivers/usb/core/hcd-pci.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index 622b4a48e73..57ed9e400c0 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -493,6 +493,15 @@ static int hcd_pci_suspend_noirq(struct device *dev)
pci_save_state(pci_dev);
+ /*
+ * Some systems crash if an EHCI controller is in D3 during
+ * a sleep transition. We have to leave such controllers in D0.
+ */
+ if (hcd->broken_pci_sleep) {
+ dev_dbg(dev, "Staying in PCI D0\n");
+ return retval;
+ }
+
/* If the root hub is dead rather than suspended, disallow remote
* wakeup. usb_hc_died() should ensure that both hosts are marked as
* dying, so we only need to check the primary roothub.