From 6d8c016a55aca612802fc325eb0e659d1c5f255d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 5 May 2022 20:05:15 +0200 Subject: PCI/PM: Unfold pci_platform_power_transition() in pci_power_up() Some actions carried out by pci_platform_power_transition(() in pci_power_up() are redundant, but before dealing with them, make pci_power_up() call the pci_platform_power_transition() code directly (and avoid a redundant check when pm_cap is unset while at it). Link: https://lore.kernel.org/r/1922486.PYKUYFuaPT@kreacher Signed-off-by: Rafael J. Wysocki Signed-off-by: Bjorn Helgaas --- drivers/pci/pci.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 056e8284b5fd..bc4af86da3f9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1194,8 +1194,15 @@ int pci_power_up(struct pci_dev *dev) { bool need_restore = false; u16 pmcsr; + int ret; - pci_platform_power_transition(dev, PCI_D0); + ret = platform_pci_set_power_state(dev, PCI_D0); + if (!ret) { + pci_update_current_state(dev, PCI_D0); + } else if (!dev->pm_cap) { /* Fall back to PCI_D0 */ + dev->current_state = PCI_D0; + return 0; + } if (dev->current_state == PCI_D0) return 0; -- cgit v1.2.3