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PCI/PM: Write 0 to PMCSR in pci_power_up() in all cases
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 5 May 2022 18:10:43 +0000 (20:10 +0200)
committerBjorn Helgaas <bhelgaas@google.com>
Thu, 5 May 2022 19:19:49 +0000 (14:19 -0500)
commitf0881d38c7eca3351f59d551604aaf74283c2e13
tree9cfd4b7e2e057390951be910fbd9b3e48d444962tree | snapshot
parent0b59193548e63957101aae5e4fc47151fce4a629commit | diff
PCI/PM: Write 0 to PMCSR in pci_power_up() in all cases

Make pci_power_up() write 0 to the device's PCI_PM_CTRL register in
order to put it into D0 regardless of the power state returned by
the previous read from that register which should not matter.

Link: https://lore.kernel.org/r/5748066.MhkbZ0Pkbq@kreacher
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
drivers/pci/pci.c diff | blob | history
Domain: System / Kernel;