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Merge back ACPI PCI material for v5.16.

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This commit is contained in:
Rafael J. Wysocki 2021-10-12 15:47:46 +02:00
commit 87440d70a4
4 changed files with 33 additions and 41 deletions
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34
drivers/acpi/glue.c
View File

@ -17,6 +17,8 @@
#include <linux/rwsem.h>
#include <linux/acpi.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>
#include <linux/pci-acpi.h>
#include <linux/platform_device.h>
#include "internal.h"
@ -287,12 +289,13 @@ EXPORT_SYMBOL_GPL(acpi_unbind_one);
void acpi_device_notify(struct device *dev)
{
struct acpi_bus_type *type = acpi_get_bus_type(dev);
struct acpi_device *adev;
int ret;
ret = acpi_bind_one(dev, NULL);
if (ret) {
struct acpi_bus_type *type = acpi_get_bus_type(dev);
if (!type)
goto err;
@ -304,17 +307,26 @@ void acpi_device_notify(struct device *dev)
ret = acpi_bind_one(dev, adev);
if (ret)
goto err;
if (type->setup) {
type->setup(dev);
goto done;
}
} else {
adev = ACPI_COMPANION(dev);
if (dev_is_pci(dev)) {
pci_acpi_setup(dev, adev);
goto done;
} else if (dev_is_platform(dev)) {
acpi_configure_pmsi_domain(dev);
}
}
adev = ACPI_COMPANION(dev);
if (dev_is_platform(dev))
acpi_configure_pmsi_domain(dev);
if (type && type->setup)
type->setup(dev);
else if (adev->handler && adev->handler->bind)
if (adev->handler && adev->handler->bind)
adev->handler->bind(dev);
done:
acpi_handle_debug(ACPI_HANDLE(dev), "Bound to device %s\n",
dev_name(dev));
@ -327,14 +339,12 @@ void acpi_device_notify(struct device *dev)
void acpi_device_notify_remove(struct device *dev)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpi_bus_type *type;
if (!adev)
return;
type = acpi_get_bus_type(dev);
if (type && type->cleanup)
type->cleanup(dev);
if (dev_is_pci(dev))
pci_acpi_cleanup(dev, adev);
else if (adev->handler && adev->handler->unbind)
adev->handler->unbind(dev);

31
drivers/pci/pci-acpi.c
View File

@ -1356,13 +1356,9 @@ static void pci_acpi_set_external_facing(struct pci_dev *dev)
dev->external_facing = 1;
}
static void pci_acpi_setup(struct device *dev)
void pci_acpi_setup(struct device *dev, struct acpi_device *adev)
{
struct pci_dev *pci_dev = to_pci_dev(dev);
struct acpi_device *adev = ACPI_COMPANION(dev);
if (!adev)
return;
pci_acpi_optimize_delay(pci_dev, adev->handle);
pci_acpi_set_external_facing(pci_dev);
@ -1386,14 +1382,10 @@ static void pci_acpi_setup(struct device *dev)
acpi_device_power_add_dependent(adev, dev);
}
static void pci_acpi_cleanup(struct device *dev)
void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
struct pci_dev *pci_dev = to_pci_dev(dev);
if (!adev)
return;
pci_acpi_remove_edr_notifier(pci_dev);
pci_acpi_remove_pm_notifier(adev);
if (adev->wakeup.flags.valid) {
@ -1405,20 +1397,6 @@ static void pci_acpi_cleanup(struct device *dev)
}
}
static bool pci_acpi_bus_match(struct device *dev)
{
return dev_is_pci(dev);
}
static struct acpi_bus_type acpi_pci_bus = {
.name = "PCI",
.match = pci_acpi_bus_match,
.find_companion = acpi_pci_find_companion,
.setup = pci_acpi_setup,
.cleanup = pci_acpi_cleanup,
};
static struct fwnode_handle *(*pci_msi_get_fwnode_cb)(struct device *dev);
/**
@ -1460,8 +1438,6 @@ struct irq_domain *pci_host_bridge_acpi_msi_domain(struct pci_bus *bus)
static int __init acpi_pci_init(void)
{
int ret;
if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) {
pr_info("ACPI FADT declares the system doesn't support MSI, so disable it\n");
pci_no_msi();
@ -1472,8 +1448,7 @@ static int __init acpi_pci_init(void)
pcie_no_aspm();
}
ret = register_acpi_bus_type(&acpi_pci_bus);
if (ret)
if (acpi_pci_disabled)
return 0;
pci_set_platform_pm(&acpi_pci_platform_pm);

1
include/acpi/acpi_bus.h
View File

@ -570,7 +570,6 @@ struct acpi_bus_type {
bool (*match)(struct device *dev);
struct acpi_device * (*find_companion)(struct device *);
void (*setup)(struct device *);
void (*cleanup)(struct device *);
};
int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);

8
include/linux/pci-acpi.h
View File

@ -84,6 +84,14 @@ extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
void acpi_pci_add_bus(struct pci_bus *bus);
void acpi_pci_remove_bus(struct pci_bus *bus);
#ifdef CONFIG_PCI
void pci_acpi_setup(struct device *dev, struct acpi_device *adev);
void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev);
#else
static inline void pci_acpi_setup(struct device *dev, struct acpi_device *adev) {}
static inline void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev) {}
#endif
#ifdef CONFIG_ACPI_PCI_SLOT
void acpi_pci_slot_init(void);
void acpi_pci_slot_enumerate(struct pci_bus *bus);