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-rw-r--r--drivers/pci/Makefile1
-rw-r--r--drivers/pci/dwc/Makefile1
-rw-r--r--drivers/pci/dwc/pci-dra7xx.c16
-rw-r--r--drivers/pci/endpoint/pci-ep-cfs.c12
-rw-r--r--drivers/pci/host/Makefile1
-rw-r--r--drivers/pci/host/pci-ftpci100.c1
-rw-r--r--drivers/pci/host/pcie-tango.c1
-rw-r--r--drivers/pci/hotplug/Makefile1
-rw-r--r--drivers/pci/htirq.c1
-rw-r--r--drivers/pci/irq.c1
-rw-r--r--drivers/pci/msi.c2
-rw-r--r--drivers/pci/pci-driver.c135
-rw-r--r--drivers/pci/pci-label.c1
-rw-r--r--drivers/pci/pci-sysfs.c1
-rw-r--r--drivers/pci/pci.c3
-rw-r--r--drivers/pci/pci.h1
-rw-r--r--drivers/pci/pcie/Makefile1
-rw-r--r--drivers/pci/pcie/aer/Makefile1
-rw-r--r--drivers/pci/pcie/aer/aerdrv.h1
-rw-r--r--drivers/pci/pcie/aer/aerdrv_acpi.c1
-rw-r--r--drivers/pci/pcie/aspm.c1
-rw-r--r--drivers/pci/pcie/portdrv.h1
-rw-r--r--drivers/pci/pcie/portdrv_core.c1
-rw-r--r--drivers/pci/pcie/portdrv_pci.c1
-rw-r--r--drivers/pci/proc.c1
-rw-r--r--drivers/pci/quirks.c1
-rw-r--r--drivers/pci/setup-res.c1
-rw-r--r--drivers/pci/syscall.c1
28 files changed, 141 insertions, 50 deletions
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 66a21acad952..80adbdbcecce 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the PCI bus specific drivers.
#
diff --git a/drivers/pci/dwc/Makefile b/drivers/pci/dwc/Makefile
index c61be9738cce..e73661182da0 100644
--- a/drivers/pci/dwc/Makefile
+++ b/drivers/pci/dwc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_PCIE_DW) += pcie-designware.o
obj-$(CONFIG_PCIE_DW_HOST) += pcie-designware-host.o
obj-$(CONFIG_PCIE_DW_EP) += pcie-designware-ep.o
diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
index 34427a6a15af..362607f727ee 100644
--- a/drivers/pci/dwc/pci-dra7xx.c
+++ b/drivers/pci/dwc/pci-dra7xx.c
@@ -11,6 +11,7 @@
*/
#include <linux/delay.h>
+#include <linux/device.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
@@ -594,6 +595,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
int i;
int phy_count;
struct phy **phy;
+ struct device_link **link;
void __iomem *base;
struct resource *res;
struct dw_pcie *pci;
@@ -649,11 +651,21 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
if (!phy)
return -ENOMEM;
+ link = devm_kzalloc(dev, sizeof(*link) * phy_count, GFP_KERNEL);
+ if (!link)
+ return -ENOMEM;
+
for (i = 0; i < phy_count; i++) {
snprintf(name, sizeof(name), "pcie-phy%d", i);
phy[i] = devm_phy_get(dev, name);
if (IS_ERR(phy[i]))
return PTR_ERR(phy[i]);
+
+ link[i] = device_link_add(dev, &phy[i]->dev, DL_FLAG_STATELESS);
+ if (!link[i]) {
+ ret = -EINVAL;
+ goto err_link;
+ }
}
dra7xx->base = base;
@@ -732,6 +744,10 @@ err_get_sync:
pm_runtime_disable(dev);
dra7xx_pcie_disable_phy(dra7xx);
+err_link:
+ while (--i >= 0)
+ device_link_del(link[i]);
+
return ret;
}
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
index 424fdd6ed1ca..4f74386c1ced 100644
--- a/drivers/pci/endpoint/pci-ep-cfs.c
+++ b/drivers/pci/endpoint/pci-ep-cfs.c
@@ -150,7 +150,7 @@ static struct configfs_item_operations pci_epc_item_ops = {
.drop_link = pci_epc_epf_unlink,
};
-static struct config_item_type pci_epc_type = {
+static const struct config_item_type pci_epc_type = {
.ct_item_ops = &pci_epc_item_ops,
.ct_attrs = pci_epc_attrs,
.ct_owner = THIS_MODULE,
@@ -361,7 +361,7 @@ static struct configfs_item_operations pci_epf_ops = {
.release = pci_epf_release,
};
-static struct config_item_type pci_epf_type = {
+static const struct config_item_type pci_epf_type = {
.ct_item_ops = &pci_epf_ops,
.ct_attrs = pci_epf_attrs,
.ct_owner = THIS_MODULE,
@@ -400,7 +400,7 @@ static struct configfs_group_operations pci_epf_group_ops = {
.drop_item = &pci_epf_drop,
};
-static struct config_item_type pci_epf_group_type = {
+static const struct config_item_type pci_epf_group_type = {
.ct_group_ops = &pci_epf_group_ops,
.ct_owner = THIS_MODULE,
};
@@ -428,15 +428,15 @@ void pci_ep_cfs_remove_epf_group(struct config_group *group)
}
EXPORT_SYMBOL(pci_ep_cfs_remove_epf_group);
-static struct config_item_type pci_functions_type = {
+static const struct config_item_type pci_functions_type = {
.ct_owner = THIS_MODULE,
};
-static struct config_item_type pci_controllers_type = {
+static const struct config_item_type pci_controllers_type = {
.ct_owner = THIS_MODULE,
};
-static struct config_item_type pci_ep_type = {
+static const struct config_item_type pci_ep_type = {
.ct_owner = THIS_MODULE,
};
diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
index 12382785e02a..95f5b80ca52a 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_PCI_FTPCI100) += pci-ftpci100.o
obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o
obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c
index 96028f01bc90..4ea7d2ebcc5c 100644
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/host/pci-ftpci100.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Support for Faraday Technology FTPC100 PCI Controller
*
diff --git a/drivers/pci/host/pcie-tango.c b/drivers/pci/host/pcie-tango.c
index 6bbb81f06a53..95049de4131c 100644
--- a/drivers/pci/host/pcie-tango.c
+++ b/drivers/pci/host/pcie-tango.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include <linux/pci-ecam.h>
#include <linux/delay.h>
#include <linux/of.h>
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index e33cdda45a4d..7e3331603714 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the Linux kernel pci hotplug controller drivers.
#
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index 7eb4109a3df4..bb88c26f5144 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* File: htirq.c
* Purpose: Hypertransport Interrupt Capability
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index 83d30953ce19..10929cd43d5d 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* PCI IRQ handling code
*
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 496ed9130600..e06607167858 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1441,6 +1441,8 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
pci_msi_domain_update_chip_ops(info);
info->flags |= MSI_FLAG_ACTIVATE_EARLY;
+ if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE))
+ info->flags |= MSI_FLAG_MUST_REACTIVATE;
domain = msi_create_irq_domain(fwnode, info, parent);
if (!domain)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 11bd267fc137..7f47bb72bf30 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -680,17 +680,13 @@ static int pci_pm_prepare(struct device *dev)
{
struct device_driver *drv = dev->driver;
- /*
- * Devices having power.ignore_children set may still be necessary for
- * suspending their children in the next phase of device suspend.
- */
- if (dev->power.ignore_children)
- pm_runtime_resume(dev);
-
if (drv && drv->pm && drv->pm->prepare) {
int error = drv->pm->prepare(dev);
- if (error)
+ if (error < 0)
return error;
+
+ if (!error && dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_PREPARE))
+ return 0;
}
return pci_dev_keep_suspended(to_pci_dev(dev));
}
@@ -731,18 +727,25 @@ static int pci_pm_suspend(struct device *dev)
if (!pm) {
pci_pm_default_suspend(pci_dev);
- goto Fixup;
+ return 0;
}
/*
- * PCI devices suspended at run time need to be resumed at this point,
- * because in general it is necessary to reconfigure them for system
- * suspend. Namely, if the device is supposed to wake up the system
- * from the sleep state, we may need to reconfigure it for this purpose.
- * In turn, if the device is not supposed to wake up the system from the
- * sleep state, we'll have to prevent it from signaling wake-up.
+ * PCI devices suspended at run time may need to be resumed at this
+ * point, because in general it may be necessary to reconfigure them for
+ * system suspend. Namely, if the device is expected to wake up the
+ * system from the sleep state, it may have to be reconfigured for this
+ * purpose, or if the device is not expected to wake up the system from
+ * the sleep state, it should be prevented from signaling wakeup events
+ * going forward.
+ *
+ * Also if the driver of the device does not indicate that its system
+ * suspend callbacks can cope with runtime-suspended devices, it is
+ * better to resume the device from runtime suspend here.
*/
- pm_runtime_resume(dev);
+ if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+ !pci_dev_keep_suspended(pci_dev))
+ pm_runtime_resume(dev);
pci_dev->state_saved = false;
if (pm->suspend) {
@@ -762,17 +765,27 @@ static int pci_pm_suspend(struct device *dev)
}
}
- Fixup:
- pci_fixup_device(pci_fixup_suspend, pci_dev);
-
return 0;
}
+static int pci_pm_suspend_late(struct device *dev)
+{
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
+
+ pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev));
+
+ return pm_generic_suspend_late(dev);
+}
+
static int pci_pm_suspend_noirq(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
+
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend_late(dev, PMSG_SUSPEND);
@@ -805,6 +818,9 @@ static int pci_pm_suspend_noirq(struct device *dev)
pci_prepare_to_sleep(pci_dev);
}
+ dev_dbg(dev, "PCI PM: Suspend power state: %s\n",
+ pci_power_name(pci_dev->current_state));
+
pci_pm_set_unknown_state(pci_dev);
/*
@@ -831,6 +847,14 @@ static int pci_pm_resume_noirq(struct device *dev)
struct device_driver *drv = dev->driver;
int error = 0;
+ /*
+ * Devices with DPM_FLAG_SMART_SUSPEND may be left in runtime suspend
+ * during system suspend, so update their runtime PM status to "active"
+ * as they are going to be put into D0 shortly.
+ */
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ pm_runtime_set_active(dev);
+
pci_pm_default_resume_early(pci_dev);
if (pci_has_legacy_pm_support(pci_dev))
@@ -873,6 +897,7 @@ static int pci_pm_resume(struct device *dev)
#else /* !CONFIG_SUSPEND */
#define pci_pm_suspend NULL
+#define pci_pm_suspend_late NULL
#define pci_pm_suspend_noirq NULL
#define pci_pm_resume NULL
#define pci_pm_resume_noirq NULL
@@ -907,7 +932,8 @@ static int pci_pm_freeze(struct device *dev)
* devices should not be touched during freeze/thaw transitions,
* however.
*/
- pm_runtime_resume(dev);
+ if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND))
+ pm_runtime_resume(dev);
pci_dev->state_saved = false;
if (pm->freeze) {
@@ -919,17 +945,25 @@ static int pci_pm_freeze(struct device *dev)
return error;
}
- if (pcibios_pm_ops.freeze)
- return pcibios_pm_ops.freeze(dev);
-
return 0;
}
+static int pci_pm_freeze_late(struct device *dev)
+{
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
+
+ return pm_generic_freeze_late(dev);;
+}
+
static int pci_pm_freeze_noirq(struct device *dev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
+
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend_late(dev, PMSG_FREEZE);
@@ -959,6 +993,16 @@ static int pci_pm_thaw_noirq(struct device *dev)
struct device_driver *drv = dev->driver;
int error = 0;
+ /*
+ * If the device is in runtime suspend, the code below may not work
+ * correctly with it, so skip that code and make the PM core skip all of
+ * the subsequent "thaw" callbacks for the device.
+ */
+ if (dev_pm_smart_suspend_and_suspended(dev)) {
+ dev->power.direct_complete = true;
+ return 0;
+ }
+
if (pcibios_pm_ops.thaw_noirq) {
error = pcibios_pm_ops.thaw_noirq(dev);
if (error)
@@ -983,12 +1027,6 @@ static int pci_pm_thaw(struct device *dev)
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
int error = 0;
- if (pcibios_pm_ops.thaw) {
- error = pcibios_pm_ops.thaw(dev);
- if (error)
- return error;
- }
-
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_resume(dev);
@@ -1014,11 +1052,13 @@ static int pci_pm_poweroff(struct device *dev)
if (!pm) {
pci_pm_default_suspend(pci_dev);
- goto Fixup;
+ return 0;
}
/* The reason to do that is the same as in pci_pm_suspend(). */
- pm_runtime_resume(dev);
+ if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+ !pci_dev_keep_suspended(pci_dev))
+ pm_runtime_resume(dev);
pci_dev->state_saved = false;
if (pm->poweroff) {
@@ -1030,13 +1070,17 @@ static int pci_pm_poweroff(struct device *dev)
return error;
}
- Fixup:
- pci_fixup_device(pci_fixup_suspend, pci_dev);
+ return 0;
+}
- if (pcibios_pm_ops.poweroff)
- return pcibios_pm_ops.poweroff(dev);
+static int pci_pm_poweroff_late(struct device *dev)
+{
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
- return 0;
+ pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev));
+
+ return pm_generic_poweroff_late(dev);
}
static int pci_pm_poweroff_noirq(struct device *dev)
@@ -1044,6 +1088,9 @@ static int pci_pm_poweroff_noirq(struct device *dev)
struct pci_dev *pci_dev = to_pci_dev(dev);
struct device_driver *drv = dev->driver;
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ return 0;
+
if (pci_has_legacy_pm_support(to_pci_dev(dev)))
return pci_legacy_suspend_late(dev, PMSG_HIBERNATE);
@@ -1085,6 +1132,10 @@ static int pci_pm_restore_noirq(struct device *dev)
struct device_driver *drv = dev->driver;
int error = 0;
+ /* This is analogous to the pci_pm_resume_noirq() case. */
+ if (dev_pm_smart_suspend_and_suspended(dev))
+ pm_runtime_set_active(dev);
+
if (pcibios_pm_ops.restore_noirq) {
error = pcibios_pm_ops.restore_noirq(dev);
if (error)
@@ -1108,12 +1159,6 @@ static int pci_pm_restore(struct device *dev)
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
int error = 0;
- if (pcibios_pm_ops.restore) {
- error = pcibios_pm_ops.restore(dev);
- if (error)
- return error;
- }
-
/*
* This is necessary for the hibernation error path in which restore is
* called without restoring the standard config registers of the device.
@@ -1139,10 +1184,12 @@ static int pci_pm_restore(struct device *dev)
#else /* !CONFIG_HIBERNATE_CALLBACKS */
#define pci_pm_freeze NULL
+#define pci_pm_freeze_late NULL
#define pci_pm_freeze_noirq NULL
#define pci_pm_thaw NULL
#define pci_pm_thaw_noirq NULL
#define pci_pm_poweroff NULL
+#define pci_pm_poweroff_late NULL
#define pci_pm_poweroff_noirq NULL
#define pci_pm_restore NULL
#define pci_pm_restore_noirq NULL
@@ -1258,10 +1305,13 @@ static const struct dev_pm_ops pci_dev_pm_ops = {
.prepare = pci_pm_prepare,
.complete = pci_pm_complete,
.suspend = pci_pm_suspend,
+ .suspend_late = pci_pm_suspend_late,
.resume = pci_pm_resume,
.freeze = pci_pm_freeze,
+ .freeze_late = pci_pm_freeze_late,
.thaw = pci_pm_thaw,
.poweroff = pci_pm_poweroff,
+ .poweroff_late = pci_pm_poweroff_late,
.restore = pci_pm_restore,
.suspend_noirq = pci_pm_suspend_noirq,
.resume_noirq = pci_pm_resume_noirq,
@@ -1466,6 +1516,7 @@ struct bus_type pci_bus_type = {
.drv_groups = pci_drv_groups,
.pm = PCI_PM_OPS_PTR,
.num_vf = pci_bus_num_vf,
+ .force_dma = true,
};
EXPORT_SYMBOL(pci_bus_type);
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index 7e9e79575d93..a961a71d950f 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Purpose: Export the firmware instance and label associated with
* a pci device to sysfs
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 8e075ea2743e..00fa4278c1f4 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pci/pci-sysfs.c
*
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 6078dfc11b11..374f5686e2bc 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2166,8 +2166,7 @@ bool pci_dev_keep_suspended(struct pci_dev *pci_dev)
if (!pm_runtime_suspended(dev)
|| pci_target_state(pci_dev, wakeup) != pci_dev->current_state
- || platform_pci_need_resume(pci_dev)
- || (pci_dev->dev_flags & PCI_DEV_FLAGS_NEEDS_RESUME))
+ || platform_pci_need_resume(pci_dev))
return false;
/*
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a6560c9baa52..fdb02c1f94bb 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef DRIVERS_PCI_H
#define DRIVERS_PCI_H
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile
index 36e35ea8fde7..223e4c34c29a 100644
--- a/drivers/pci/pcie/Makefile
+++ b/drivers/pci/pcie/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for PCI-Express PORT Driver
#
diff --git a/drivers/pci/pcie/aer/Makefile b/drivers/pci/pcie/aer/Makefile
index 2cba67510dc8..09bd890875a3 100644
--- a/drivers/pci/pcie/aer/Makefile
+++ b/drivers/pci/pcie/aer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for PCI-Express Root Port Advanced Error Reporting Driver
#
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index d51e4a57b190..5449e5ce139d 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2006 Intel Corp.
* Tom Long Nguyen (tom.l.nguyen@intel.com)
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 01906576ab91..b2019440e882 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Access ACPI _OSC method
*
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index ca3ee0f7e61d..af2c0023a1c2 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* File: drivers/pci/pcie/aspm.c
* Enabling PCIe link L0s/L1 state and Clock Power Management
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 4334fd5d7de9..a854bc569117 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* File: portdrv.h
* Purpose: PCI Express Port Bus Driver's Internal Data Structures
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 313a21df1692..ebc9d45bd731 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* File: portdrv_core.c
* Purpose: PCI Express Port Bus Driver's Core Functions
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 083276e03c38..68c389c7b975 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* File: portdrv_pci.c
* Purpose: PCI Express Port Bus Driver
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 098360d7ff81..58a662e3c4a6 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Procfs interface for the PCI bus.
*
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a4d33619a7bb..911b3b65c8b2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* This file contains work-arounds for many known PCI hardware
* bugs. Devices present only on certain architectures (host
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index e576e1a8d978..c039149cacb0 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* drivers/pci/setup-res.c
*
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index 9bf993e1f71e..83efa001c2e7 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* pci_syscall.c
*