search for: f694650235f2

...le.com> Cc: Rafael J. Wysocki <rafael.j.wysocki at intel.com> Signed-off-by: Lukas Wunner <lukas at wunner.de> --- drivers/pci/pci.c | 8 ++++---- include/linux/pci.h | 2 ++ 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index f694650235f2..6e6e322a5a7d 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -800,7 +800,7 @@ static int pci_wakeup(struct pci_dev *pci_dev, void *ign) * pci_wakeup_bus - Walk given bus and wake up devices on it * @bus: Top bus of the subtree to walk. */ -static void pci_wakeup_bus(struct pci_bus...

...* been in D3cold as well and require restoration of its BARs. */ - if (!pci_dev->driver) + if (!pci_dev->driver) { + pci_restore_bars(pci_dev); return 0; + } if (!pm || !pm->runtime_resume) return -ENOSYS; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index f6a4dd10d9b0..f694650235f2 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -563,7 +563,7 @@ int pci_wait_for_pending(struct pci_dev *dev, int pos, u16 mask) * Restore the BAR values for a given device, so as to make it * accessible by its driver. */ -static void pci_restore_bars(struct pci_dev *dev) +void pci...

Modernize vga_switcheroo by using a "device link" to enforce a runtime PM dependency from an HDA controller to the GPU it's integrated into. Remove thereby obsoleted code and fix a bunch of bugs. Device links were introduced in v4.10. Users might see a small power saving if the discrete GPU is in use and its HDA controller is not, because the HDA controller is now allowed to runtime

...ath looks a little smarter in that it is more careful when updating 64-bit BARs that can't be updated atomically. > return 0; > + } > > if (!pm || !pm->runtime_resume) > return -ENOSYS; > diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c > index f6a4dd10d9b0..f694650235f2 100644 > --- a/drivers/pci/pci.c > +++ b/drivers/pci/pci.c > @@ -563,7 +563,7 @@ int pci_wait_for_pending(struct pci_dev *dev, int pos, u16 mask) > * Restore the BAR values for a given device, so as to make it > * accessible by its driver. > */ > -static void pci_restore_...