| Message ID | 1461578004-129094-2-git-send-email-mika.westerberg@linux.intel.com |
|---|---|
| State | Superseded |
| Headers | show |
On Mon, Apr 25, 2016 at 11:53 AM, Mika Westerberg <mika.westerberg@linux.intel.com> wrote: > The Linux PCI core skips PCI bridges and PCIe ports when system is > suspended. The PCI core checks return value of pci_has_subordinate() in > pci_pm_suspend_noirq() to skip all devices where it is non-zero (which > means PCI bridges and PCIe ports). > > Since PCIe ports are never suspended in the first place, there is no need > to set d3cold_allowed for them. > > Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > --- > drivers/pci/pcie/portdrv_pci.c | 5 ----- > 1 file changed, 5 deletions(-) > > diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c > index be35da2e105e..6c6bb03392ea 100644 > --- a/drivers/pci/pcie/portdrv_pci.c > +++ b/drivers/pci/pcie/portdrv_pci.c > @@ -134,11 +134,6 @@ static int pcie_portdrv_probe(struct pci_dev *dev, > return status; > > pci_save_state(dev); > - /* > - * D3cold may not work properly on some PCIe port, so disable > - * it by default. > - */ > - dev->d3cold_allowed = false; > return 0; > } > > -- > 2.8.0.rc3 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-pm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index be35da2e105e..6c6bb03392ea 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -134,11 +134,6 @@ static int pcie_portdrv_probe(struct pci_dev *dev, return status; pci_save_state(dev); - /* - * D3cold may not work properly on some PCIe port, so disable - * it by default. - */ - dev->d3cold_allowed = false; return 0; }
The Linux PCI core skips PCI bridges and PCIe ports when system is suspended. The PCI core checks return value of pci_has_subordinate() in pci_pm_suspend_noirq() to skip all devices where it is non-zero (which means PCI bridges and PCIe ports). Since PCIe ports are never suspended in the first place, there is no need to set d3cold_allowed for them. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> --- drivers/pci/pcie/portdrv_pci.c | 5 ----- 1 file changed, 5 deletions(-)