diff options
| author | Tony Truong <truong@codeaurora.org> | 2019-08-01 19:35:29 -0700 |
|---|---|---|
| committer | Gerrit - the friendly Code Review server <code-review@localhost> | 2019-08-16 10:16:08 -0700 |
| commit | 4dc5db4d6502dbc8f40e67e7555db3ac4533a99b (patch) | |
| tree | bbb4de4e7da03debb08c6c86e95b3f63bac08ecb | |
| parent | e0463d37de2fc280420c3328eaf69b2847f1eb3e (diff) | |
pci: framework: skip PCI restore in pci_pm_resume if no_d3hot is setLA.UM.7.1.r1-16300-sm8150.0
PCI devices with no_d3hot set do not need its configuration
space restored in pci_pm_resume.
Change-Id: Ia92f5278bfbd35d082fce53d9b2de9397a69b942
Signed-off-by: Tony Truong <truong@codeaurora.org>
| -rw-r--r-- | drivers/pci/pci-driver.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index a394ebdc258c..a3e1b5d127f1 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -853,6 +853,9 @@ static int pci_pm_resume(struct device *dev) const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; int error = 0; + if (pci_dev->no_d3hot) + goto skip_pci_pm_restore; + /* * This is necessary for the suspend error path in which resume is * called without restoring the standard config registers of the device. @@ -860,6 +863,7 @@ static int pci_pm_resume(struct device *dev) if (pci_dev->state_saved) pci_restore_standard_config(pci_dev); +skip_pci_pm_restore: if (pci_has_legacy_pm_support(pci_dev)) return pci_legacy_resume(dev); |