diff options
| author | Imre Deak <imre.deak@intel.com> | 2017-05-23 14:18:17 -0500 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-06-25 22:02:20 -0400 |
| commit | 7f6abe4c05600dae70b4a0037be77b752f57a077 (patch) | |
| tree | 926a0d791b278e91b563d81640e034d80416d603 /include | |
| parent | cd1c4f855f68a251587340f63f3b5e2e38d2c97e (diff) | |
PCI/PM: Add needs_resume flag to avoid suspend complete optimization
[ Upstream commit 4d071c3238987325b9e50e33051a40d1cce311cc ]
Some drivers - like i915 - may not support the system suspend direct
complete optimization due to differences in their runtime and system
suspend sequence. Add a flag that when set resumes the device before
calling the driver's system suspend handlers which effectively disables
the optimization.
Needed by a future patch fixing suspend/resume on i915.
Suggested by Rafael.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 109ccee9e3e6..fee06c4c8e4d 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -182,6 +182,11 @@ enum pci_dev_flags { PCI_DEV_FLAGS_NO_PM_RESET = (__force pci_dev_flags_t) (1 << 7), /* Get VPD from function 0 VPD */ PCI_DEV_FLAGS_VPD_REF_F0 = (__force pci_dev_flags_t) (1 << 8), + /* + * Resume before calling the driver's system suspend hooks, disabling + * the direct_complete optimization. + */ + PCI_DEV_FLAGS_NEEDS_RESUME = (__force pci_dev_flags_t) (1 << 11), }; enum pci_irq_reroute_variant { |