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Merge branch 'pci/misc'

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- Move _HPX type array from stack to static data (Colin Ian King)

  - Avoid an ASMedia XHCI USB PME# defect; apparently it doesn't assert
    PME# when USB3.0 devices are hotplugged in D0 (Kai-Heng Feng)

  - Revert sysfs "rescan" file renames that broke an application (Kelsey
    Skunberg)

* pci/misc:
  PCI: sysfs: Revert "rescan" file renames
  PCI: Avoid ASMedia XHCI USB PME# from D0 defect
  PCI/ACPI: Move pcie_to_hpx3_type[] from stack to static data
This commit is contained in:
Bjorn Helgaas 2020-04-02 14:26:38 -05:00
commit 10e8141baa
3 changed files with 16 additions and 3 deletions
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2
drivers/pci/pci-acpi.c
View File

@ -439,7 +439,7 @@ enum hpx_type3_dev_type {
static u16 hpx3_device_type(struct pci_dev *dev)
{
u16 pcie_type = pci_pcie_type(dev);
const int pcie_to_hpx3_type[] = {
static const int pcie_to_hpx3_type[] = {
[PCI_EXP_TYPE_ENDPOINT] = HPX_TYPE_ENDPOINT,
[PCI_EXP_TYPE_LEG_END] = HPX_TYPE_LEG_END,
[PCI_EXP_TYPE_RC_END] = HPX_TYPE_RC_END,

6
drivers/pci/pci-sysfs.c
View File

@ -447,7 +447,8 @@ static ssize_t dev_rescan_store(struct device *dev,
}
return count;
}
static DEVICE_ATTR_WO(dev_rescan);
static struct device_attribute dev_attr_dev_rescan = __ATTR(rescan, 0200, NULL,
dev_rescan_store);
static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
@ -484,7 +485,8 @@ static ssize_t bus_rescan_store(struct device *dev,
}
return count;
}
static DEVICE_ATTR_WO(bus_rescan);
static struct device_attribute dev_attr_bus_rescan = __ATTR(rescan, 0200, NULL,
bus_rescan_store);
#if defined(CONFIG_PM) && defined(CONFIG_ACPI)
static ssize_t d3cold_allowed_store(struct device *dev,

11
drivers/pci/quirks.c
View File

@ -5527,3 +5527,14 @@ out_disable:
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_NVIDIA, 0x13b1,
PCI_CLASS_DISPLAY_VGA, 8,
quirk_reset_lenovo_thinkpad_p50_nvgpu);
/*
* Device [1b21:2142]
* When in D0, PME# doesn't get asserted when plugging USB 3.0 device.
*/
static void pci_fixup_no_d0_pme(struct pci_dev *dev)
{
pci_info(dev, "PME# does not work under D0, disabling it\n");
dev->pme_support &= ~(PCI_PM_CAP_PME_D0 >> PCI_PM_CAP_PME_SHIFT);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASMEDIA, 0x2142, pci_fixup_no_d0_pme);