[linux-2.6-block.git] / drivers / acpi / glue.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Link physical devices with ACPI devices support
 *
 * Copyright (c) 2005 David Shaohua Li <shaohua.li@intel.com>
 * Copyright (c) 2005 Intel Corp.
 */

#define pr_fmt(fmt) "ACPI: " fmt

#include <linux/acpi_iort.h>
#include <linux/export.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/device.h>
#include <linux/slab.h>
#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"

static LIST_HEAD(bus_type_list);
static DECLARE_RWSEM(bus_type_sem);

#define PHYSICAL_NODE_STRING "physical_node"
#define PHYSICAL_NODE_NAME_SIZE (sizeof(PHYSICAL_NODE_STRING) + 10)

int register_acpi_bus_type(struct acpi_bus_type *type)
{
	if (acpi_disabled)
		return -ENODEV;
	if (type && type->match && type->find_companion) {
		down_write(&bus_type_sem);
		list_add_tail(&type->list, &bus_type_list);
		up_write(&bus_type_sem);
		pr_info("bus type %s registered\n", type->name);
		return 0;
	}
	return -ENODEV;
}
EXPORT_SYMBOL_GPL(register_acpi_bus_type);

int unregister_acpi_bus_type(struct acpi_bus_type *type)
{
	if (acpi_disabled)
		return 0;
	if (type) {
		down_write(&bus_type_sem);
		list_del_init(&type->list);
		up_write(&bus_type_sem);
		pr_info("bus type %s unregistered\n", type->name);
		return 0;
	}
	return -ENODEV;
}
EXPORT_SYMBOL_GPL(unregister_acpi_bus_type);

static struct acpi_bus_type *acpi_get_bus_type(struct device *dev)
{
	struct acpi_bus_type *tmp, *ret = NULL;

	down_read(&bus_type_sem);
	list_for_each_entry(tmp, &bus_type_list, list) {
		if (tmp->match(dev)) {
			ret = tmp;
			break;
		}
	}
	up_read(&bus_type_sem);
	return ret;
}

#define FIND_CHILD_MIN_SCORE	1
#define FIND_CHILD_MAX_SCORE	2

static int find_child_checks(struct acpi_device *adev, bool check_children)
{
	unsigned long long sta;
	acpi_status status;

	if (check_children && list_empty(&adev->children))
		return -ENODEV;

	status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta);
	if (status == AE_NOT_FOUND)
		return FIND_CHILD_MIN_SCORE;

	if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_ENABLED))
		return -ENODEV;

	/*
	 * If the device has a _HID returning a valid ACPI/PNP device ID, it is
	 * better to make it look less attractive here, so that the other device
	 * with the same _ADR value (that may not have a valid device ID) can be
	 * matched going forward.  [This means a second spec violation in a row,
	 * so whatever we do here is best effort anyway.]
	 */
	if (adev->pnp.type.platform_id)
		return FIND_CHILD_MIN_SCORE;

	return FIND_CHILD_MAX_SCORE;
}

struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
					   u64 address, bool check_children)
{
	struct acpi_device *adev, *ret = NULL;
	int ret_score = 0;

	if (!parent)
		return NULL;

	list_for_each_entry(adev, &parent->children, node) {
		acpi_bus_address addr = acpi_device_adr(adev);
		int score;

		if (!adev->pnp.type.bus_address || addr != address)
			continue;

		if (!ret) {
			/* This is the first matching object.  Save it. */
			ret = adev;
			continue;
		}
		/*
		 * There is more than one matching device object with the same
		 * _ADR value.  That really is unexpected, so we are kind of
		 * beyond the scope of the spec here.  We have to choose which
		 * one to return, though.
		 *
		 * First, check if the previously found object is good enough
		 * and return it if so.  Second, do the same for the object that
		 * we've just found.
		 */
		if (!ret_score) {
			ret_score = find_child_checks(ret, check_children);
			if (ret_score == FIND_CHILD_MAX_SCORE)
				return ret;
		}
		score = find_child_checks(adev, check_children);
		if (score == FIND_CHILD_MAX_SCORE) {
			return adev;
		} else if (score > ret_score) {
			ret = adev;
			ret_score = score;
		}
	}
	return ret;
}
EXPORT_SYMBOL_GPL(acpi_find_child_device);

static void acpi_physnode_link_name(char *buf, unsigned int node_id)
{
	if (node_id > 0)
		snprintf(buf, PHYSICAL_NODE_NAME_SIZE,
			 PHYSICAL_NODE_STRING "%u", node_id);
	else
		strcpy(buf, PHYSICAL_NODE_STRING);
}

int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev)
{
	struct acpi_device_physical_node *physical_node, *pn;
	char physical_node_name[PHYSICAL_NODE_NAME_SIZE];
	struct list_head *physnode_list;
	unsigned int node_id;
	int retval = -EINVAL;

	if (has_acpi_companion(dev)) {
		if (acpi_dev) {
			dev_warn(dev, "ACPI companion already set\n");
			return -EINVAL;
		} else {
			acpi_dev = ACPI_COMPANION(dev);
		}
	}
	if (!acpi_dev)
		return -EINVAL;

	acpi_dev_get(acpi_dev);
	get_device(dev);
	physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL);
	if (!physical_node) {
		retval = -ENOMEM;
		goto err;
	}

	mutex_lock(&acpi_dev->physical_node_lock);

	/*
	 * Keep the list sorted by node_id so that the IDs of removed nodes can
	 * be recycled easily.
	 */
	physnode_list = &acpi_dev->physical_node_list;
	node_id = 0;
	list_for_each_entry(pn, &acpi_dev->physical_node_list, node) {
		/* Sanity check. */
		if (pn->dev == dev) {
			mutex_unlock(&acpi_dev->physical_node_lock);

			dev_warn(dev, "Already associated with ACPI node\n");
			kfree(physical_node);
			if (ACPI_COMPANION(dev) != acpi_dev)
				goto err;

			put_device(dev);
			acpi_dev_put(acpi_dev);
			return 0;
		}
		if (pn->node_id == node_id) {
			physnode_list = &pn->node;
			node_id++;
		}
	}

	physical_node->node_id = node_id;
	physical_node->dev = dev;
	list_add(&physical_node->node, physnode_list);
	acpi_dev->physical_node_count++;

	if (!has_acpi_companion(dev))
		ACPI_COMPANION_SET(dev, acpi_dev);

	acpi_physnode_link_name(physical_node_name, node_id);
	retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
				   physical_node_name);
	if (retval)
		dev_err(&acpi_dev->dev, "Failed to create link %s (%d)\n",
			physical_node_name, retval);

	retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
				   "firmware_node");
	if (retval)
		dev_err(dev, "Failed to create link firmware_node (%d)\n",
			retval);

	mutex_unlock(&acpi_dev->physical_node_lock);

	if (acpi_dev->wakeup.flags.valid)
		device_set_wakeup_capable(dev, true);

	return 0;

 err:
	ACPI_COMPANION_SET(dev, NULL);
	put_device(dev);
	acpi_dev_put(acpi_dev);
	return retval;
}
EXPORT_SYMBOL_GPL(acpi_bind_one);

int acpi_unbind_one(struct device *dev)
{
	struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
	struct acpi_device_physical_node *entry;

	if (!acpi_dev)
		return 0;

	mutex_lock(&acpi_dev->physical_node_lock);

	list_for_each_entry(entry, &acpi_dev->physical_node_list, node)
		if (entry->dev == dev) {
			char physnode_name[PHYSICAL_NODE_NAME_SIZE];

			list_del(&entry->node);
			acpi_dev->physical_node_count--;

			acpi_physnode_link_name(physnode_name, entry->node_id);
			sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
			sysfs_remove_link(&dev->kobj, "firmware_node");
			ACPI_COMPANION_SET(dev, NULL);
			/* Drop references taken by acpi_bind_one(). */
			put_device(dev);
			acpi_dev_put(acpi_dev);
			kfree(entry);
			break;
		}

	mutex_unlock(&acpi_dev->physical_node_lock);
	return 0;
}
EXPORT_SYMBOL_GPL(acpi_unbind_one);

void acpi_device_notify(struct device *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;

		adev = type->find_companion(dev);
		if (!adev) {
			dev_dbg(dev, "ACPI companion not found\n");
			goto err;
		}
		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);
		}
	}

	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));

	return;

err:
	dev_dbg(dev, "No ACPI support\n");
}

void acpi_device_notify_remove(struct device *dev)
{
	struct acpi_device *adev = ACPI_COMPANION(dev);

	if (!adev)
		return;

	if (dev_is_pci(dev))
		pci_acpi_cleanup(dev, adev);
	else if (adev->handler && adev->handler->unbind)
		adev->handler->unbind(dev);

	acpi_unbind_one(dev);
}
Commit	Line	Data
55716d26	1	// SPDX-License-Identifier: GPL-2.0-only
4e10d12a DSL	2	/*
	3	* Link physical devices with ACPI devices support
	4	*
	5	* Copyright (c) 2005 David Shaohua Li <shaohua.li@intel.com>
	6	* Copyright (c) 2005 Intel Corp.
4e10d12a	7	*/
d4f54a18	8
e2935abb HG	9	#define pr_fmt(fmt) "ACPI: " fmt
e2935abb HG	10
d4f54a18	11	#include <linux/acpi_iort.h>
214f2c90	12	#include <linux/export.h>
4e10d12a DSL	13	#include <linux/init.h>
	14	#include <linux/list.h>
	15	#include <linux/device.h>
5a0e3ad6	16	#include <linux/slab.h>
4e10d12a DSL	17	#include <linux/rwsem.h>
4e10d12a DSL	18	#include <linux/acpi.h>
d0562674	19	#include <linux/dma-mapping.h>
47954481 RW	20	#include <linux/pci.h>
47954481 RW	21	#include <linux/pci-acpi.h>
d4f54a18	22	#include <linux/platform_device.h>
4e10d12a	23
a192a958 LB	24	#include "internal.h"
a192a958 LB	25
4e10d12a DSL	26	static LIST_HEAD(bus_type_list);
	27	static DECLARE_RWSEM(bus_type_sem);
	28
1033f904	29	#define PHYSICAL_NODE_STRING "physical_node"
007ccfcf	30	#define PHYSICAL_NODE_NAME_SIZE (sizeof(PHYSICAL_NODE_STRING) + 10)
1033f904	31
4e10d12a DSL	32	int register_acpi_bus_type(struct acpi_bus_type *type)
	33	{
	34	if (acpi_disabled)
	35	return -ENODEV;
e3f02c52	36	if (type && type->match && type->find_companion) {
4e10d12a DSL	37	down_write(&bus_type_sem);
	38	list_add_tail(&type->list, &bus_type_list);
	39	up_write(&bus_type_sem);
e2935abb	40	pr_info("bus type %s registered\n", type->name);
4e10d12a DSL	41	return 0;
	42	}
	43	return -ENODEV;
	44	}
91e4d5a1	45	EXPORT_SYMBOL_GPL(register_acpi_bus_type);
4e10d12a	46
4e10d12a DSL	47	int unregister_acpi_bus_type(struct acpi_bus_type *type)
	48	{
	49	if (acpi_disabled)
	50	return 0;
	51	if (type) {
	52	down_write(&bus_type_sem);
	53	list_del_init(&type->list);
	54	up_write(&bus_type_sem);
e2935abb	55	pr_info("bus type %s unregistered\n", type->name);
4e10d12a DSL	56	return 0;
	57	}
	58	return -ENODEV;
	59	}
91e4d5a1	60	EXPORT_SYMBOL_GPL(unregister_acpi_bus_type);
4e10d12a	61
53540098	62	static struct acpi_bus_type acpi_get_bus_type(struct device dev)
4e10d12a DSL	63	{
	64	struct acpi_bus_type tmp, ret = NULL;
	65
	66	down_read(&bus_type_sem);
	67	list_for_each_entry(tmp, &bus_type_list, list) {
53540098	68	if (tmp->match(dev)) {
4e10d12a DSL	69	ret = tmp;
	70	break;
	71	}
	72	}
	73	up_read(&bus_type_sem);
	74	return ret;
	75	}
	76
11b88ee2 RW	77	#define FIND_CHILD_MIN_SCORE 1
	78	#define FIND_CHILD_MAX_SCORE 2
	79
d9fef0c4	80	static int find_child_checks(struct acpi_device *adev, bool check_children)
60f75b8e RW	81	{
	82	unsigned long long sta;
	83	acpi_status status;
	84
b7fbf4ce RW	85	if (check_children && list_empty(&adev->children))
	86	return -ENODEV;
	87
d9fef0c4	88	status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta);
11b88ee2	89	if (status == AE_NOT_FOUND)
b7fbf4ce	90	return FIND_CHILD_MIN_SCORE;
60f75b8e	91
b7fbf4ce	92	if (ACPI_FAILURE(status) \|\| !(sta & ACPI_STA_DEVICE_ENABLED))
d9fef0c4	93	return -ENODEV;
60f75b8e	94
c2a6bbaf	95	/*
fdad4e7a RW	96	* If the device has a _HID returning a valid ACPI/PNP device ID, it is
	97	* better to make it look less attractive here, so that the other device
	98	* with the same _ADR value (that may not have a valid device ID) can be
	99	* matched going forward. [This means a second spec violation in a row,
	100	* so whatever we do here is best effort anyway.]
c2a6bbaf	101	*/
b7fbf4ce RW	102	if (adev->pnp.type.platform_id)
	103	return FIND_CHILD_MIN_SCORE;
	104
	105	return FIND_CHILD_MAX_SCORE;
60f75b8e RW	106	}
60f75b8e RW	107
d9fef0c4 RW	108	struct acpi_device acpi_find_child_device(struct acpi_device parent,
d9fef0c4 RW	109	u64 address, bool check_children)
60f75b8e	110	{
d9fef0c4 RW	111	struct acpi_device adev, ret = NULL;
	112	int ret_score = 0;
	113
5ce79d20 RW	114	if (!parent)
	115	return NULL;
	116
d9fef0c4	117	list_for_each_entry(adev, &parent->children, node) {
61a3c78d	118	acpi_bus_address addr = acpi_device_adr(adev);
d9fef0c4 RW	119	int score;
d9fef0c4 RW	120
61a3c78d	121	if (!adev->pnp.type.bus_address \|\| addr != address)
d9fef0c4 RW	122	continue;
	123
	124	if (!ret) {
	125	/* This is the first matching object. Save it. */
	126	ret = adev;
	127	continue;
	128	}
	129	/*
	130	* There is more than one matching device object with the same
	131	* _ADR value. That really is unexpected, so we are kind of
	132	* beyond the scope of the spec here. We have to choose which
	133	* one to return, though.
	134	*
	135	* First, check if the previously found object is good enough
	136	* and return it if so. Second, do the same for the object that
	137	* we've just found.
	138	*/
	139	if (!ret_score) {
	140	ret_score = find_child_checks(ret, check_children);
	141	if (ret_score == FIND_CHILD_MAX_SCORE)
	142	return ret;
	143	}
	144	score = find_child_checks(adev, check_children);
	145	if (score == FIND_CHILD_MAX_SCORE) {
	146	return adev;
	147	} else if (score > ret_score) {
	148	ret = adev;
	149	ret_score = score;
	150	}
4e10d12a	151	}
d9fef0c4	152	return ret;
4e10d12a	153	}
9c5ad36d	154	EXPORT_SYMBOL_GPL(acpi_find_child_device);
4e10d12a	155
bdbdbf91 RW	156	static void acpi_physnode_link_name(char *buf, unsigned int node_id)
	157	{
	158	if (node_id > 0)
	159	snprintf(buf, PHYSICAL_NODE_NAME_SIZE,
	160	PHYSICAL_NODE_STRING "%u", node_id);
	161	else
	162	strcpy(buf, PHYSICAL_NODE_STRING);
	163	}
	164
24dee1fc	165	int acpi_bind_one(struct device dev, struct acpi_device acpi_dev)
4e10d12a	166	{
f3fd0c8a	167	struct acpi_device_physical_node physical_node, pn;
007ccfcf RW	168	char physical_node_name[PHYSICAL_NODE_NAME_SIZE];
	169	struct list_head *physnode_list;
	170	unsigned int node_id;
1033f904	171	int retval = -EINVAL;
4e10d12a	172
ca5b74d2	173	if (has_acpi_companion(dev)) {
24dee1fc	174	if (acpi_dev) {
7b199811	175	dev_warn(dev, "ACPI companion already set\n");
f3fd0c8a RW	176	return -EINVAL;
f3fd0c8a RW	177	} else {
7b199811	178	acpi_dev = ACPI_COMPANION(dev);
f3fd0c8a	179	}
4e10d12a	180	}
7b199811	181	if (!acpi_dev)
f3fd0c8a	182	return -EINVAL;
1033f904	183
4cbaba4e	184	acpi_dev_get(acpi_dev);
4e10d12a	185	get_device(dev);
f3fd0c8a	186	physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL);
1033f904 LT	187	if (!physical_node) {
	188	retval = -ENOMEM;
	189	goto err;
4e10d12a	190	}
4e10d12a	191
1033f904	192	mutex_lock(&acpi_dev->physical_node_lock);
f3fd0c8a	193
007ccfcf RW	194	/*
	195	* Keep the list sorted by node_id so that the IDs of removed nodes can
	196	* be recycled easily.
	197	*/
	198	physnode_list = &acpi_dev->physical_node_list;
	199	node_id = 0;
	200	list_for_each_entry(pn, &acpi_dev->physical_node_list, node) {
	201	/* Sanity check. */
f3fd0c8a	202	if (pn->dev == dev) {
3342c753 RW	203	mutex_unlock(&acpi_dev->physical_node_lock);
3342c753 RW	204
f3fd0c8a	205	dev_warn(dev, "Already associated with ACPI node\n");
3342c753	206	kfree(physical_node);
7b199811	207	if (ACPI_COMPANION(dev) != acpi_dev)
3342c753	208	goto err;
3fe444ad	209
3342c753	210	put_device(dev);
4cbaba4e	211	acpi_dev_put(acpi_dev);
3342c753	212	return 0;
f3fd0c8a	213	}
007ccfcf RW	214	if (pn->node_id == node_id) {
	215	physnode_list = &pn->node;
	216	node_id++;
	217	}
1071695f DB	218	}
1071695f DB	219
007ccfcf	220	physical_node->node_id = node_id;
1033f904	221	physical_node->dev = dev;
007ccfcf	222	list_add(&physical_node->node, physnode_list);
1033f904	223	acpi_dev->physical_node_count++;
f3fd0c8a	224
ca5b74d2	225	if (!has_acpi_companion(dev))
7b199811	226	ACPI_COMPANION_SET(dev, acpi_dev);
1033f904	227
bdbdbf91	228	acpi_physnode_link_name(physical_node_name, node_id);
1033f904	229	retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
f501b6ec	230	physical_node_name);
464c1147 RW	231	if (retval)
	232	dev_err(&acpi_dev->dev, "Failed to create link %s (%d)\n",
	233	physical_node_name, retval);
	234
1033f904	235	retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
f501b6ec	236	"firmware_node");
464c1147 RW	237	if (retval)
	238	dev_err(dev, "Failed to create link firmware_node (%d)\n",
	239	retval);
1033f904	240
40055206 RW	241	mutex_unlock(&acpi_dev->physical_node_lock);
40055206 RW	242
1033f904 LT	243	if (acpi_dev->wakeup.flags.valid)
	244	device_set_wakeup_capable(dev, true);
	245
4e10d12a	246	return 0;
1033f904 LT	247
1033f904 LT	248	err:
7b199811	249	ACPI_COMPANION_SET(dev, NULL);
1033f904	250	put_device(dev);
4cbaba4e	251	acpi_dev_put(acpi_dev);
1033f904	252	return retval;
4e10d12a	253	}
ac212b69	254	EXPORT_SYMBOL_GPL(acpi_bind_one);
4e10d12a	255
ac212b69	256	int acpi_unbind_one(struct device *dev)
4e10d12a	257	{
7b199811	258	struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
1033f904	259	struct acpi_device_physical_node *entry;
1033f904	260
7b199811	261	if (!acpi_dev)
4e10d12a	262	return 0;
1071695f	263
1033f904	264	mutex_lock(&acpi_dev->physical_node_lock);
3e332783 RW	265
	266	list_for_each_entry(entry, &acpi_dev->physical_node_list, node)
	267	if (entry->dev == dev) {
	268	char physnode_name[PHYSICAL_NODE_NAME_SIZE];
	269
	270	list_del(&entry->node);
	271	acpi_dev->physical_node_count--;
	272
	273	acpi_physnode_link_name(physnode_name, entry->node_id);
	274	sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
	275	sysfs_remove_link(&dev->kobj, "firmware_node");
7b199811	276	ACPI_COMPANION_SET(dev, NULL);
a104b4d4	277	/* Drop references taken by acpi_bind_one(). */
3e332783	278	put_device(dev);
4cbaba4e	279	acpi_dev_put(acpi_dev);
3e332783 RW	280	kfree(entry);
	281	break;
	282	}
	283
1033f904	284	mutex_unlock(&acpi_dev->physical_node_lock);
4e10d12a DSL	285	return 0;
4e10d12a DSL	286	}
ac212b69	287	EXPORT_SYMBOL_GPL(acpi_unbind_one);
4e10d12a	288
d0b8e398	289	void acpi_device_notify(struct device *dev)
4e10d12a	290	{
9cb32acf	291	struct acpi_device *adev;
11909ca1	292	int ret;
4e10d12a	293
f3fd0c8a	294	ret = acpi_bind_one(dev, NULL);
42878a9f	295	if (ret) {
2ef52366 RW	296	struct acpi_bus_type *type = acpi_get_bus_type(dev);
2ef52366 RW	297
42878a9f RW	298	if (!type)
42878a9f RW	299	goto err;
e3f02c52 RW	300
	301	adev = type->find_companion(dev);
	302	if (!adev) {
42878a9f	303	dev_dbg(dev, "ACPI companion not found\n");
42878a9f	304	goto err;
11909ca1	305	}
24dee1fc	306	ret = acpi_bind_one(dev, adev);
11909ca1	307	if (ret)
42878a9f	308	goto err;
11909ca1	309
2ef52366 RW	310	if (type->setup) {
	311	type->setup(dev);
	312	goto done;
	313	}
47954481	314	} else {
2ef52366	315	adev = ACPI_COMPANION(dev);
d4f54a18	316
2ef52366 RW	317	if (dev_is_pci(dev)) {
	318	pci_acpi_setup(dev, adev);
	319	goto done;
	320	} else if (dev_is_platform(dev)) {
	321	acpi_configure_pmsi_domain(dev);
	322	}
47954481	323	}
d4f54a18	324
2ef52366	325	if (adev->handler && adev->handler->bind)
9cb32acf	326	adev->handler->bind(dev);
4e10d12a	327
2ef52366	328	done:
42878a9f RW	329	acpi_handle_debug(ACPI_HANDLE(dev), "Bound to device %s\n",
42878a9f RW	330	dev_name(dev));
4e10d12a	331
7d625e5b	332	return;
42878a9f RW	333
	334	err:
	335	dev_dbg(dev, "No ACPI support\n");
4e10d12a DSL	336	}
4e10d12a DSL	337
d0b8e398	338	void acpi_device_notify_remove(struct device *dev)
4e10d12a	339	{
9cb32acf	340	struct acpi_device *adev = ACPI_COMPANION(dev);
11909ca1	341
9cb32acf	342	if (!adev)
7d625e5b	343	return;
9cb32acf	344
c4d19838	345	if (dev_is_pci(dev))
47954481	346	pci_acpi_cleanup(dev, adev);
9cb32acf RW	347	else if (adev->handler && adev->handler->unbind)
9cb32acf RW	348	adev->handler->unbind(dev);
11909ca1	349
4e10d12a	350	acpi_unbind_one(dev);
4e10d12a	351	}