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authorBjorn Helgaas <bhelgaas@google.com>2020-04-02 14:26:38 -0500
committerBjorn Helgaas <bhelgaas@google.com>2020-04-02 14:26:38 -0500
commit10e8141baa7c5585c2d1ad98397186689ccf99b3 (patch)
tree043dfcc9edab6cebd69fc44c55a1a60a8d4be141 /drivers/pci
parent74f0862cc9836460282b54b8350c8947cc8220b6 (diff)
parentbd641fd8303a371e789e924291086268256766b0 (diff)
downloadlinux-10e8141baa7c5585c2d1ad98397186689ccf99b3.tar.bz2
Merge branch 'pci/misc'
- 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
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci-acpi.c2
-rw-r--r--drivers/pci/pci-sysfs.c6
-rw-r--r--drivers/pci/quirks.c11
3 files changed, 16 insertions, 3 deletions
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 1a6d2062cf8d..d21969fba6ab 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -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,
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d123d1087061..6d78df981d41 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -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,
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b7347bc6a24d..3e0ca273f903 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -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);