Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 688 insertions, 0 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
new file mode 100644
index 000000000..8b19618ba
--- /dev/null
+++ b/include/acpi/acpi_bus.h
@@ -0,0 +1,688 @@
+/*
+ *  acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
+ *
+ *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or (at
+ *  your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#ifndef __ACPI_BUS_H__
+#define __ACPI_BUS_H__
+
+#include <linux/device.h>
+#include <linux/property.h>
+
+/* TBD: Make dynamic */
+#define ACPI_MAX_HANDLES	10
+struct acpi_handle_list {
+	u32 count;
+	acpi_handle handles[ACPI_MAX_HANDLES];
+};
+
+/* acpi_utils.h */
+acpi_status
+acpi_extract_package(union acpi_object *package,
+		     struct acpi_buffer *format, struct acpi_buffer *buffer);
+acpi_status
+acpi_evaluate_integer(acpi_handle handle,
+		      acpi_string pathname,
+		      struct acpi_object_list *arguments, unsigned long long *data);
+acpi_status
+acpi_evaluate_reference(acpi_handle handle,
+			acpi_string pathname,
+			struct acpi_object_list *arguments,
+			struct acpi_handle_list *list);
+acpi_status
+acpi_evaluate_ost(acpi_handle handle, u32 source_event, u32 status_code,
+		  struct acpi_buffer *status_buf);
+
+acpi_status
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
+
+bool acpi_has_method(acpi_handle handle, char *name);
+acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
+				       u64 arg);
+acpi_status acpi_evaluate_ej0(acpi_handle handle);
+acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
+bool acpi_ata_match(acpi_handle handle);
+bool acpi_bay_match(acpi_handle handle);
+bool acpi_dock_match(acpi_handle handle);
+
+bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs);
+union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const guid_t *guid,
+			u64 rev, u64 func, union acpi_object *argv4);
+
+static inline union acpi_object *
+acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
+			u64 func, union acpi_object *argv4,
+			acpi_object_type type)
+{
+	union acpi_object *obj;
+
+	obj = acpi_evaluate_dsm(handle, guid, rev, func, argv4);
+	if (obj && obj->type != type) {
+		ACPI_FREE(obj);
+		obj = NULL;
+	}
+
+	return obj;
+}
+
+#define	ACPI_INIT_DSM_ARGV4(cnt, eles)			\
+	{						\
+	  .package.type = ACPI_TYPE_PACKAGE,		\
+	  .package.count = (cnt),			\
+	  .package.elements = (eles)			\
+	}
+
+bool acpi_dev_found(const char *hid);
+bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
+
+const char *
+acpi_dev_get_first_match_name(const char *hid, const char *uid, s64 hrv);
+
+#ifdef CONFIG_ACPI
+
+#include <linux/proc_fs.h>
+
+#define ACPI_BUS_FILE_ROOT	"acpi"
+extern struct proc_dir_entry *acpi_root_dir;
+
+enum acpi_bus_device_type {
+	ACPI_BUS_TYPE_DEVICE = 0,
+	ACPI_BUS_TYPE_POWER,
+	ACPI_BUS_TYPE_PROCESSOR,
+	ACPI_BUS_TYPE_THERMAL,
+	ACPI_BUS_TYPE_POWER_BUTTON,
+	ACPI_BUS_TYPE_SLEEP_BUTTON,
+	ACPI_BUS_TYPE_ECDT_EC,
+	ACPI_BUS_DEVICE_TYPE_COUNT
+};
+
+struct acpi_driver;
+struct acpi_device;
+
+/*
+ * ACPI Scan Handler
+ * -----------------
+ */
+
+struct acpi_hotplug_profile {
+	struct kobject kobj;
+	int (*scan_dependent)(struct acpi_device *adev);
+	void (*notify_online)(struct acpi_device *adev);
+	bool enabled:1;
+	bool demand_offline:1;
+};
+
+static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
+						struct kobject *kobj)
+{
+	return container_of(kobj, struct acpi_hotplug_profile, kobj);
+}
+
+struct acpi_scan_handler {
+	const struct acpi_device_id *ids;
+	struct list_head list_node;
+	bool (*match)(const char *idstr, const struct acpi_device_id **matchid);
+	int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
+	void (*detach)(struct acpi_device *dev);
+	void (*bind)(struct device *phys_dev);
+	void (*unbind)(struct device *phys_dev);
+	struct acpi_hotplug_profile hotplug;
+};
+
+/*
+ * ACPI Hotplug Context
+ * --------------------
+ */
+
+struct acpi_hotplug_context {
+	struct acpi_device *self;
+	int (*notify)(struct acpi_device *, u32);
+	void (*uevent)(struct acpi_device *, u32);
+	void (*fixup)(struct acpi_device *);
+};
+
+/*
+ * ACPI Driver
+ * -----------
+ */
+
+typedef int (*acpi_op_add) (struct acpi_device * device);
+typedef int (*acpi_op_remove) (struct acpi_device * device);
+typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
+
+struct acpi_device_ops {
+	acpi_op_add add;
+	acpi_op_remove remove;
+	acpi_op_notify notify;
+};
+
+#define ACPI_DRIVER_ALL_NOTIFY_EVENTS	0x1	/* system AND device events */
+
+struct acpi_driver {
+	char name[80];
+	char class[80];
+	const struct acpi_device_id *ids; /* Supported Hardware IDs */
+	unsigned int flags;
+	struct acpi_device_ops ops;
+	struct device_driver drv;
+	struct module *owner;
+};
+
+/*
+ * ACPI Device
+ * -----------
+ */
+
+/* Status (_STA) */
+
+struct acpi_device_status {
+	u32 present:1;
+	u32 enabled:1;
+	u32 show_in_ui:1;
+	u32 functional:1;
+	u32 battery_present:1;
+	u32 reserved:27;
+};
+
+/* Flags */
+
+struct acpi_device_flags {
+	u32 dynamic_status:1;
+	u32 removable:1;
+	u32 ejectable:1;
+	u32 power_manageable:1;
+	u32 match_driver:1;
+	u32 initialized:1;
+	u32 visited:1;
+	u32 hotplug_notify:1;
+	u32 is_dock_station:1;
+	u32 of_compatible_ok:1;
+	u32 coherent_dma:1;
+	u32 cca_seen:1;
+	u32 enumeration_by_parent:1;
+	u32 reserved:19;
+};
+
+/* File System */
+
+struct acpi_device_dir {
+	struct proc_dir_entry *entry;
+};
+
+#define acpi_device_dir(d)	((d)->dir.entry)
+
+/* Plug and Play */
+
+typedef char acpi_bus_id[8];
+typedef unsigned long acpi_bus_address;
+typedef char acpi_device_name[40];
+typedef char acpi_device_class[20];
+
+struct acpi_hardware_id {
+	struct list_head list;
+	const char *id;
+};
+
+struct acpi_pnp_type {
+	u32 hardware_id:1;
+	u32 bus_address:1;
+	u32 platform_id:1;
+	u32 reserved:29;
+};
+
+struct acpi_device_pnp {
+	acpi_bus_id bus_id;		/* Object name */
+	int instance_no;		/* Instance number of this object */
+	struct acpi_pnp_type type;	/* ID type */
+	acpi_bus_address bus_address;	/* _ADR */
+	char *unique_id;		/* _UID */
+	struct list_head ids;		/* _HID and _CIDs */
+	acpi_device_name device_name;	/* Driver-determined */
+	acpi_device_class device_class;	/*        "          */
+	union acpi_object *str_obj;	/* unicode string for _STR method */
+};
+
+#define acpi_device_bid(d)	((d)->pnp.bus_id)
+#define acpi_device_adr(d)	((d)->pnp.bus_address)
+const char *acpi_device_hid(struct acpi_device *device);
+#define acpi_device_uid(d)	((d)->pnp.unique_id)
+#define acpi_device_name(d)	((d)->pnp.device_name)
+#define acpi_device_class(d)	((d)->pnp.device_class)
+
+/* Power Management */
+
+struct acpi_device_power_flags {
+	u32 explicit_get:1;	/* _PSC present? */
+	u32 power_resources:1;	/* Power resources */
+	u32 inrush_current:1;	/* Serialize Dx->D0 */
+	u32 power_removed:1;	/* Optimize Dx->D0 */
+	u32 ignore_parent:1;	/* Power is independent of parent power state */
+	u32 dsw_present:1;	/* _DSW present? */
+	u32 reserved:26;
+};
+
+struct acpi_device_power_state {
+	struct {
+		u8 valid:1;
+		u8 explicit_set:1;	/* _PSx present? */
+		u8 reserved:6;
+	} flags;
+	int power;		/* % Power (compared to D0) */
+	int latency;		/* Dx->D0 time (microseconds) */
+	struct list_head resources;	/* Power resources referenced */
+};
+
+struct acpi_device_power {
+	int state;		/* Current state */
+	struct acpi_device_power_flags flags;
+	struct acpi_device_power_state states[ACPI_D_STATE_COUNT];	/* Power states (D0-D3Cold) */
+};
+
+/* Performance Management */
+
+struct acpi_device_perf_flags {
+	u8 reserved:8;
+};
+
+struct acpi_device_perf_state {
+	struct {
+		u8 valid:1;
+		u8 reserved:7;
+	} flags;
+	u8 power;		/* % Power (compared to P0) */
+	u8 performance;		/* % Performance (    "   ) */
+	int latency;		/* Px->P0 time (microseconds) */
+};
+
+struct acpi_device_perf {
+	int state;
+	struct acpi_device_perf_flags flags;
+	int state_count;
+	struct acpi_device_perf_state *states;
+};
+
+/* Wakeup Management */
+struct acpi_device_wakeup_flags {
+	u8 valid:1;		/* Can successfully enable wakeup? */
+	u8 notifier_present:1;  /* Wake-up notify handler has been installed */
+};
+
+struct acpi_device_wakeup_context {
+	void (*func)(struct acpi_device_wakeup_context *context);
+	struct device *dev;
+};
+
+struct acpi_device_wakeup {
+	acpi_handle gpe_device;
+	u64 gpe_number;
+	u64 sleep_state;
+	struct list_head resources;
+	struct acpi_device_wakeup_flags flags;
+	struct acpi_device_wakeup_context context;
+	struct wakeup_source *ws;
+	int prepare_count;
+	int enable_count;
+};
+
+struct acpi_device_physical_node {
+	unsigned int node_id;
+	struct list_head node;
+	struct device *dev;
+	bool put_online:1;
+};
+
+/* ACPI Device Specific Data (_DSD) */
+struct acpi_device_data {
+	const union acpi_object *pointer;
+	const union acpi_object *properties;
+	const union acpi_object *of_compatible;
+	struct list_head subnodes;
+};
+
+struct acpi_gpio_mapping;
+
+/* Device */
+struct acpi_device {
+	int device_type;
+	acpi_handle handle;		/* no handle for fixed hardware */
+	struct fwnode_handle fwnode;
+	struct acpi_device *parent;
+	struct list_head children;
+	struct list_head node;
+	struct list_head wakeup_list;
+	struct list_head del_list;
+	struct acpi_device_status status;
+	struct acpi_device_flags flags;
+	struct acpi_device_pnp pnp;
+	struct acpi_device_power power;
+	struct acpi_device_wakeup wakeup;
+	struct acpi_device_perf performance;
+	struct acpi_device_dir dir;
+	struct acpi_device_data data;
+	struct acpi_scan_handler *handler;
+	struct acpi_hotplug_context *hp;
+	struct acpi_driver *driver;
+	const struct acpi_gpio_mapping *driver_gpios;
+	void *driver_data;
+	struct device dev;
+	unsigned int physical_node_count;
+	unsigned int dep_unmet;
+	struct list_head physical_node_list;
+	struct mutex physical_node_lock;
+	void (*remove)(struct acpi_device *);
+};
+
+/* Non-device subnode */
+struct acpi_data_node {
+	const char *name;
+	acpi_handle handle;
+	struct fwnode_handle fwnode;
+	struct fwnode_handle *parent;
+	struct acpi_device_data data;
+	struct list_head sibling;
+	struct kobject kobj;
+	struct completion kobj_done;
+};
+
+extern const struct fwnode_operations acpi_device_fwnode_ops;
+extern const struct fwnode_operations acpi_data_fwnode_ops;
+extern const struct fwnode_operations acpi_static_fwnode_ops;
+
+bool is_acpi_device_node(const struct fwnode_handle *fwnode);
+bool is_acpi_data_node(const struct fwnode_handle *fwnode);
+
+static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
+{
+	return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
+}
+
+#define to_acpi_device_node(__fwnode)					\
+	({								\
+		typeof(__fwnode) __to_acpi_device_node_fwnode = __fwnode; \
+									\
+		is_acpi_device_node(__to_acpi_device_node_fwnode) ?	\
+			container_of(__to_acpi_device_node_fwnode,	\
+				     struct acpi_device, fwnode) :	\
+			NULL;						\
+	})
+
+#define to_acpi_data_node(__fwnode)					\
+	({								\
+		typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode;	\
+									\
+		is_acpi_data_node(__to_acpi_data_node_fwnode) ?		\
+			container_of(__to_acpi_data_node_fwnode,	\
+				     struct acpi_data_node, fwnode) :	\
+			NULL;						\
+	})
+
+static inline bool is_acpi_static_node(const struct fwnode_handle *fwnode)
+{
+	return !IS_ERR_OR_NULL(fwnode) &&
+		fwnode->ops == &acpi_static_fwnode_ops;
+}
+
+static inline bool acpi_data_node_match(const struct fwnode_handle *fwnode,
+					const char *name)
+{
+	return is_acpi_data_node(fwnode) ?
+		(!strcmp(to_acpi_data_node(fwnode)->name, name)) : false;
+}
+
+static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
+{
+	return &adev->fwnode;
+}
+
+static inline void *acpi_driver_data(struct acpi_device *d)
+{
+	return d->driver_data;
+}
+
+#define to_acpi_device(d)	container_of(d, struct acpi_device, dev)
+#define to_acpi_driver(d)	container_of(d, struct acpi_driver, drv)
+
+static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
+{
+	*((u32 *)&adev->status) = sta;
+}
+
+static inline void acpi_set_hp_context(struct acpi_device *adev,
+				       struct acpi_hotplug_context *hp)
+{
+	hp->self = adev;
+	adev->hp = hp;
+}
+
+void acpi_initialize_hp_context(struct acpi_device *adev,
+				struct acpi_hotplug_context *hp,
+				int (*notify)(struct acpi_device *, u32),
+				void (*uevent)(struct acpi_device *, u32));
+
+/* acpi_device.dev.bus == &acpi_bus_type */
+extern struct bus_type acpi_bus_type;
+
+/*
+ * Events
+ * ------
+ */
+
+struct acpi_bus_event {
+	struct list_head node;
+	acpi_device_class device_class;
+	acpi_bus_id bus_id;
+	u32 type;
+	u32 data;
+};
+
+extern struct kobject *acpi_kobj;
+extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
+void acpi_bus_private_data_handler(acpi_handle, void *);
+int acpi_bus_get_private_data(acpi_handle, void **);
+int acpi_bus_attach_private_data(acpi_handle, void *);
+void acpi_bus_detach_private_data(acpi_handle);
+extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
+extern int register_acpi_notifier(struct notifier_block *);
+extern int unregister_acpi_notifier(struct notifier_block *);
+
+/*
+ * External Functions
+ */
+
+int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
+struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle);
+void acpi_bus_put_acpi_device(struct acpi_device *adev);
+acpi_status acpi_bus_get_status_handle(acpi_handle handle,
+				       unsigned long long *sta);
+int acpi_bus_get_status(struct acpi_device *device);
+
+int acpi_bus_set_power(acpi_handle handle, int state);
+const char *acpi_power_state_string(int state);
+int acpi_device_get_power(struct acpi_device *device, int *state);
+int acpi_device_set_power(struct acpi_device *device, int state);
+int acpi_bus_init_power(struct acpi_device *device);
+int acpi_device_fix_up_power(struct acpi_device *device);
+int acpi_bus_update_power(acpi_handle handle, int *state_p);
+int acpi_device_update_power(struct acpi_device *device, int *state_p);
+bool acpi_bus_power_manageable(acpi_handle handle);
+
+#ifdef CONFIG_PM
+bool acpi_bus_can_wakeup(acpi_handle handle);
+#else
+static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
+#endif
+
+void acpi_scan_lock_acquire(void);
+void acpi_scan_lock_release(void);
+void acpi_lock_hp_context(void);
+void acpi_unlock_hp_context(void);
+int acpi_scan_add_handler(struct acpi_scan_handler *handler);
+int acpi_bus_register_driver(struct acpi_driver *driver);
+void acpi_bus_unregister_driver(struct acpi_driver *driver);
+int acpi_bus_scan(acpi_handle handle);
+void acpi_bus_trim(struct acpi_device *start);
+acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
+int acpi_match_device_ids(struct acpi_device *device,
+			  const struct acpi_device_id *ids);
+void acpi_set_modalias(struct acpi_device *adev, const char *default_id,
+		       char *modalias, size_t len);
+int acpi_create_dir(struct acpi_device *);
+void acpi_remove_dir(struct acpi_device *);
+
+static inline bool acpi_device_enumerated(struct acpi_device *adev)
+{
+	return adev && adev->flags.initialized && adev->flags.visited;
+}
+
+/**
+ * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
+ * @__acpi_driver: acpi_driver struct
+ *
+ * Helper macro for ACPI drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_acpi_driver(__acpi_driver) \
+	module_driver(__acpi_driver, acpi_bus_register_driver, \
+		      acpi_bus_unregister_driver)
+
+/*
+ * Bind physical devices with ACPI devices
+ */
+struct acpi_bus_type {
+	struct list_head list;
+	const char *name;
+	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 *);
+int acpi_bind_one(struct device *dev, struct acpi_device *adev);
+int acpi_unbind_one(struct device *dev);
+
+struct acpi_pci_root {
+	struct acpi_device * device;
+	struct pci_bus *bus;
+	u16 segment;
+	struct resource secondary;	/* downstream bus range */
+
+	u32 osc_support_set;	/* _OSC state of support bits */
+	u32 osc_control_set;	/* _OSC state of control bits */
+	phys_addr_t mcfg_addr;
+};
+
+/* helper */
+
+bool acpi_dma_supported(struct acpi_device *adev);
+enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);
+int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset,
+		       u64 *size);
+int acpi_dma_configure(struct device *dev, enum dev_dma_attr attr);
+void acpi_dma_deconfigure(struct device *dev);
+
+struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
+					   u64 address, bool check_children);
+int acpi_is_root_bridge(acpi_handle);
+struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
+
+int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
+int acpi_disable_wakeup_device_power(struct acpi_device *dev);
+
+#ifdef CONFIG_X86
+bool acpi_device_always_present(struct acpi_device *adev);
+#else
+static inline bool acpi_device_always_present(struct acpi_device *adev)
+{
+	return false;
+}
+#endif
+
+#ifdef CONFIG_PM
+void acpi_pm_wakeup_event(struct device *dev);
+acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
+			void (*func)(struct acpi_device_wakeup_context *context));
+acpi_status acpi_remove_pm_notifier(struct acpi_device *adev);
+bool acpi_pm_device_can_wakeup(struct device *dev);
+int acpi_pm_device_sleep_state(struct device *, int *, int);
+int acpi_pm_set_device_wakeup(struct device *dev, bool enable);
+#else
+static inline void acpi_pm_wakeup_event(struct device *dev)
+{
+}
+static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
+					       struct device *dev,
+					       void (*func)(struct acpi_device_wakeup_context *context))
+{
+	return AE_SUPPORT;
+}
+static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
+{
+	return AE_SUPPORT;
+}
+static inline bool acpi_pm_device_can_wakeup(struct device *dev)
+{
+	return false;
+}
+static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
+{
+	if (p)
+		*p = ACPI_STATE_D0;
+
+	return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
+		m : ACPI_STATE_D0;
+}
+static inline int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
+{
+	return -ENODEV;
+}
+#endif
+
+#ifdef CONFIG_ACPI_SLEEP
+u32 acpi_target_system_state(void);
+#else
+static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
+#endif
+
+static inline bool acpi_device_power_manageable(struct acpi_device *adev)
+{
+	return adev->flags.power_manageable;
+}
+
+static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
+{
+	return adev->wakeup.flags.valid;
+}
+
+static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
+{
+	return adev->power.states[ACPI_STATE_D3_COLD].flags.valid ||
+		((acpi_gbl_FADT.header.revision < 6) &&
+		adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
+}
+
+#else	/* CONFIG_ACPI */
+
+static inline int register_acpi_bus_type(void *bus) { return 0; }
+static inline int unregister_acpi_bus_type(void *bus) { return 0; }
+
+#endif				/* CONFIG_ACPI */
+
+#endif /*__ACPI_BUS_H__*/