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authorHao, Xudong <xudong.hao@intel.com>2011-12-17 14:24:40 +0100
committerJesse Barnes <jbarnes@virtuousgeek.org>2012-01-06 21:11:18 +0100
commit1900ca132f53c3d51e6e6b94ea8912530223c63a (patch)
tree01f7e215f1ba735e54f30c27c3fd91dd747b2c5a /drivers/pci/pci.c
parentPCI: msi: fix imbalanced refcount of msi irq sysfs objects (diff)
downloadlinux-1900ca132f53c3d51e6e6b94ea8912530223c63a.tar.xz
linux-1900ca132f53c3d51e6e6b94ea8912530223c63a.zip
PCI: Enable ATS at the device state restore
During S3 or S4 resume or PCI reset, ATS regs aren't restored correctly. This patch enables ATS at the device state restore if PCI device has ATS capability. Signed-off-by: Xudong Hao <xudong.hao@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 54343aa5b30a..97fff785e97e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -965,6 +965,7 @@ void pci_restore_state(struct pci_dev *dev)
/* PCI Express register must be restored first */
pci_restore_pcie_state(dev);
+ pci_restore_ats_state(dev);
/*
* The Base Address register should be programmed before the command