[linux-block.git] / include / linux / extcon.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * External Connector (extcon) framework
 * - linux/include/linux/extcon.h for extcon consumer device driver.
 *
 * Copyright (C) 2015 Samsung Electronics
 * Author: Chanwoo Choi <cw00.choi@samsung.com>
 *
 * Copyright (C) 2012 Samsung Electronics
 * Author: Donggeun Kim <dg77.kim@samsung.com>
 * Author: MyungJoo Ham <myungjoo.ham@samsung.com>
 *
 * based on switch class driver
 * Copyright (C) 2008 Google, Inc.
 * Author: Mike Lockwood <lockwood@android.com>
 */

#ifndef __LINUX_EXTCON_H__
#define __LINUX_EXTCON_H__

#include <linux/device.h>

/*
 * Define the type of supported external connectors
 */
#define EXTCON_TYPE_USB		BIT(0)	/* USB connector */
#define EXTCON_TYPE_CHG		BIT(1)	/* Charger connector */
#define EXTCON_TYPE_JACK	BIT(2)	/* Jack connector */
#define EXTCON_TYPE_DISP	BIT(3)	/* Display connector */
#define EXTCON_TYPE_MISC	BIT(4)	/* Miscellaneous connector */

/*
 * Define the unique id of supported external connectors
 */
#define EXTCON_NONE		0

/* USB external connector */
#define EXTCON_USB		1
#define EXTCON_USB_HOST		2

/*
 * Charging external connector
 *
 * When one SDP charger connector was reported, we should also report
 * the USB connector, which means EXTCON_CHG_USB_SDP should always
 * appear together with EXTCON_USB. The same as ACA charger connector,
 * EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
 *
 * The EXTCON_CHG_USB_SLOW connector can provide at least 500mA of
 * current at 5V. The EXTCON_CHG_USB_FAST connector can provide at
 * least 1A of current at 5V.
 */
#define EXTCON_CHG_USB_SDP	5	/* Standard Downstream Port */
#define EXTCON_CHG_USB_DCP	6	/* Dedicated Charging Port */
#define EXTCON_CHG_USB_CDP	7	/* Charging Downstream Port */
#define EXTCON_CHG_USB_ACA	8	/* Accessory Charger Adapter */
#define EXTCON_CHG_USB_FAST	9
#define EXTCON_CHG_USB_SLOW	10
#define EXTCON_CHG_WPT		11	/* Wireless Power Transfer */
#define EXTCON_CHG_USB_PD	12	/* USB Power Delivery */

/* Jack external connector */
#define EXTCON_JACK_MICROPHONE	20
#define EXTCON_JACK_HEADPHONE	21
#define EXTCON_JACK_LINE_IN	22
#define EXTCON_JACK_LINE_OUT	23
#define EXTCON_JACK_VIDEO_IN	24
#define EXTCON_JACK_VIDEO_OUT	25
#define EXTCON_JACK_SPDIF_IN	26	/* Sony Philips Digital InterFace */
#define EXTCON_JACK_SPDIF_OUT	27

/* Display external connector */
#define EXTCON_DISP_HDMI	40	/* High-Definition Multimedia Interface */
#define EXTCON_DISP_MHL		41	/* Mobile High-Definition Link */
#define EXTCON_DISP_DVI		42	/* Digital Visual Interface */
#define EXTCON_DISP_VGA		43	/* Video Graphics Array */
#define EXTCON_DISP_DP		44	/* Display Port */
#define EXTCON_DISP_HMD		45	/* Head-Mounted Display */
#define EXTCON_DISP_CVBS	46	/* Composite Video Broadcast Signal */
#define EXTCON_DISP_EDP		47	/* Embedded Display Port */

/* Miscellaneous external connector */
#define EXTCON_DOCK		60
#define EXTCON_JIG		61
#define EXTCON_MECHANICAL	62

#define EXTCON_NUM		63

/*
 * Define the properties of supported external connectors.
 *
 * When adding the new extcon property, they *must* have
 * the type/value/default information. Also, you *have to*
 * modify the EXTCON_PROP_[type]_START/END definitions
 * which mean the range of the supported properties
 * for each extcon type.
 *
 * The naming style of property
 * : EXTCON_PROP_[type]_[property name]
 *
 * EXTCON_PROP_USB_[property name]	: USB property
 * EXTCON_PROP_CHG_[property name]	: Charger property
 * EXTCON_PROP_JACK_[property name]	: Jack property
 * EXTCON_PROP_DISP_[property name]	: Display property
 */

/*
 * Properties of EXTCON_TYPE_USB.
 *
 * - EXTCON_PROP_USB_VBUS
 * @type:	integer (intval)
 * @value:	0 (low) or 1 (high)
 * @default:	0 (low)
 * - EXTCON_PROP_USB_TYPEC_POLARITY
 * @type:	integer (intval)
 * @value:	0 (normal) or 1 (flip)
 * @default:	0 (normal)
 * - EXTCON_PROP_USB_SS (SuperSpeed)
 * @type:       integer (intval)
 * @value:      0 (USB/USB2) or 1 (USB3)
 * @default:    0 (USB/USB2)
 *
 */
#define EXTCON_PROP_USB_VBUS		0
#define EXTCON_PROP_USB_TYPEC_POLARITY	1
#define EXTCON_PROP_USB_SS		2

#define EXTCON_PROP_USB_MIN		0
#define EXTCON_PROP_USB_MAX		2
#define EXTCON_PROP_USB_CNT	(EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)

/* Properties of EXTCON_TYPE_CHG. */
#define EXTCON_PROP_CHG_MIN		50
#define EXTCON_PROP_CHG_MAX		50
#define EXTCON_PROP_CHG_CNT	(EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1)

/* Properties of EXTCON_TYPE_JACK. */
#define EXTCON_PROP_JACK_MIN		100
#define EXTCON_PROP_JACK_MAX		100
#define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1)

/*
 * Properties of EXTCON_TYPE_DISP.
 *
 * - EXTCON_PROP_DISP_HPD (Hot Plug Detect)
 * @type:       integer (intval)
 * @value:      0 (no hpd) or 1 (hpd)
 * @default:    0 (no hpd)
 *
 */
#define EXTCON_PROP_DISP_HPD		150

/* Properties of EXTCON_TYPE_DISP. */
#define EXTCON_PROP_DISP_MIN		150
#define EXTCON_PROP_DISP_MAX		151
#define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1)

/*
 * Define the type of property's value.
 *
 * Define the property's value as union type. Because each property
 * would need the different data type to store it.
 */
union extcon_property_value {
	int intval;	/* type : integer (intval) */
};

struct extcon_dev;

#if IS_ENABLED(CONFIG_EXTCON)
/*
 * Following APIs get the connected state of each external connector.
 * The 'id' argument indicates the defined external connector.
 */
int extcon_get_state(struct extcon_dev *edev, unsigned int id);

/*
 * Following APIs get the property of each external connector.
 * The 'id' argument indicates the defined external connector
 * and the 'prop' indicates the extcon property.
 *
 * And extcon_get_property_capability() get the capability of the property
 * for each external connector. They are used to get the capability of the
 * property of each external connector based on the id and property.
 */
int extcon_get_property(struct extcon_dev *edev, unsigned int id,
				unsigned int prop,
				union extcon_property_value *prop_val);
int extcon_get_property_capability(struct extcon_dev *edev,
				unsigned int id, unsigned int prop);

/*
 * Following APIs register the notifier block in order to detect
 * the change of both state and property value for each external connector.
 *
 * extcon_register_notifier(*edev, id, *nb) : Register a notifier block
 *			for specific external connector of the extcon.
 * extcon_register_notifier_all(*edev, *nb) : Register a notifier block
 *			for all supported external connectors of the extcon.
 */
int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);
int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);
int devm_extcon_register_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);
void devm_extcon_unregister_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb);

int extcon_register_notifier_all(struct extcon_dev *edev,
				struct notifier_block *nb);
int extcon_unregister_notifier_all(struct extcon_dev *edev,
				struct notifier_block *nb);
int devm_extcon_register_notifier_all(struct device *dev,
				struct extcon_dev *edev,
				struct notifier_block *nb);
void devm_extcon_unregister_notifier_all(struct device *dev,
				struct extcon_dev *edev,
				struct notifier_block *nb);

/*
 * Following APIs get the extcon_dev from devicetree or by through extcon name.
 */
struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
struct extcon_dev *extcon_find_edev_by_node(struct device_node *node);
struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
						     int index);

/* Following API get the name of extcon device. */
const char *extcon_get_edev_name(struct extcon_dev *edev);

#else /* CONFIG_EXTCON */
static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
{
	return 0;
}

static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,
				unsigned int prop,
				union extcon_property_value *prop_val)
{
	return 0;
}

static inline int extcon_get_property_capability(struct extcon_dev *edev,
				unsigned int id, unsigned int prop)
{
	return 0;
}

static inline int extcon_register_notifier(struct extcon_dev *edev,
				unsigned int id, struct notifier_block *nb)
{
	return 0;
}

static inline int extcon_unregister_notifier(struct extcon_dev *edev,
				unsigned int id, struct notifier_block *nb)
{
	return 0;
}

static inline int devm_extcon_register_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb)
{
	return -ENOSYS;
}

static inline  void devm_extcon_unregister_notifier(struct device *dev,
				struct extcon_dev *edev, unsigned int id,
				struct notifier_block *nb) { }

static inline int extcon_register_notifier_all(struct extcon_dev *edev,
					       struct notifier_block *nb)
{
	return 0;
}

static inline int extcon_unregister_notifier_all(struct extcon_dev *edev,
						 struct notifier_block *nb)
{
	return 0;
}

static inline int devm_extcon_register_notifier_all(struct device *dev,
						    struct extcon_dev *edev,
						    struct notifier_block *nb)
{
	return 0;
}

static inline void devm_extcon_unregister_notifier_all(struct device *dev,
						       struct extcon_dev *edev,
						       struct notifier_block *nb) { }

static inline struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name)
{
	return NULL;
}

static inline struct extcon_dev *extcon_find_edev_by_node(struct device_node *node)
{
	return ERR_PTR(-ENODEV);
}

static inline struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
				int index)
{
	return ERR_PTR(-ENODEV);
}

static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
{
	return NULL;
}
#endif /* CONFIG_EXTCON */

/*
 * Following structure and API are deprecated. EXTCON remains the function
 * definition to prevent the build break.
 */
struct extcon_specific_cable_nb {
       struct notifier_block *user_nb;
       int cable_index;
       struct extcon_dev *edev;
       unsigned long previous_value;
};

static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,
				const char *extcon_name, const char *cable_name,
				struct notifier_block *nb)
{
	return -EINVAL;
}

static inline int extcon_unregister_interest(struct extcon_specific_cable_nb *obj)
{
	return -EINVAL;
}
#endif /* __LINUX_EXTCON_H__ */
Commit	Line	Data
9c92ab61	1	/* SPDX-License-Identifier: GPL-2.0-only */
de55d871	2	/*
6ab6094f	3	* External Connector (extcon) framework
176aa360	4	* - linux/include/linux/extcon.h for extcon consumer device driver.
de55d871	5	*
2a9de9c0 CC	6	* Copyright (C) 2015 Samsung Electronics
	7	* Author: Chanwoo Choi <cw00.choi@samsung.com>
	8	*
de55d871 MH	9	* Copyright (C) 2012 Samsung Electronics
	10	* Author: Donggeun Kim <dg77.kim@samsung.com>
	11	* Author: MyungJoo Ham <myungjoo.ham@samsung.com>
	12	*
	13	* based on switch class driver
	14	* Copyright (C) 2008 Google, Inc.
	15	* Author: Mike Lockwood <lockwood@android.com>
6ab6094f	16	*/
de55d871 MH	17
	18	#ifndef __LINUX_EXTCON_H__
	19	#define __LINUX_EXTCON_H__
	20
d851718f	21	#include <linux/device.h>
806d9dd7	22
55e4e2f1 CC	23	/*
	24	* Define the type of supported external connectors
	25	*/
	26	#define EXTCON_TYPE_USB BIT(0) /* USB connector */
	27	#define EXTCON_TYPE_CHG BIT(1) /* Charger connector */
	28	#define EXTCON_TYPE_JACK BIT(2) /* Jack connector */
	29	#define EXTCON_TYPE_DISP BIT(3) /* Display connector */
	30	#define EXTCON_TYPE_MISC BIT(4) /* Miscellaneous connector */
	31
73b6ecdb CC	32	/*
	33	* Define the unique id of supported external connectors
	34	*/
11eecf91	35	#define EXTCON_NONE 0
73b6ecdb	36
11eecf91 CC	37	/* USB external connector */
	38	#define EXTCON_USB 1
	39	#define EXTCON_USB_HOST 2
73b6ecdb	40
db622861 BW	41	/*
	42	* Charging external connector
	43	*
	44	* When one SDP charger connector was reported, we should also report
	45	* the USB connector, which means EXTCON_CHG_USB_SDP should always
	46	* appear together with EXTCON_USB. The same as ACA charger connector,
	47	* EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
62a37443 BW	48	*
	49	* The EXTCON_CHG_USB_SLOW connector can provide at least 500mA of
	50	* current at 5V. The EXTCON_CHG_USB_FAST connector can provide at
	51	* least 1A of current at 5V.
db622861	52	*/
11eecf91 CC	53	#define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
	54	#define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
	55	#define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
	56	#define EXTCON_CHG_USB_ACA 8 /* Accessory Charger Adapter */
	57	#define EXTCON_CHG_USB_FAST 9
	58	#define EXTCON_CHG_USB_SLOW 10
7fe95fb8	59	#define EXTCON_CHG_WPT 11 /* Wireless Power Transfer */
3c5f0e07	60	#define EXTCON_CHG_USB_PD 12 /* USB Power Delivery */
73b6ecdb	61
11eecf91 CC	62	/* Jack external connector */
	63	#define EXTCON_JACK_MICROPHONE 20
	64	#define EXTCON_JACK_HEADPHONE 21
	65	#define EXTCON_JACK_LINE_IN 22
	66	#define EXTCON_JACK_LINE_OUT 23
	67	#define EXTCON_JACK_VIDEO_IN 24
	68	#define EXTCON_JACK_VIDEO_OUT 25
	69	#define EXTCON_JACK_SPDIF_IN 26 /* Sony Philips Digital InterFace */
	70	#define EXTCON_JACK_SPDIF_OUT 27
73b6ecdb	71
11eecf91 CC	72	/* Display external connector */
	73	#define EXTCON_DISP_HDMI 40 /* High-Definition Multimedia Interface */
	74	#define EXTCON_DISP_MHL 41 /* Mobile High-Definition Link */
	75	#define EXTCON_DISP_DVI 42 /* Digital Visual Interface */
	76	#define EXTCON_DISP_VGA 43 /* Video Graphics Array */
2164188d	77	#define EXTCON_DISP_DP 44 /* Display Port */
9c0595d6	78	#define EXTCON_DISP_HMD 45 /* Head-Mounted Display */
3a06ed80 MW	79	#define EXTCON_DISP_CVBS 46 /* Composite Video Broadcast Signal */
3a06ed80 MW	80	#define EXTCON_DISP_EDP 47 /* Embedded Display Port */
11eecf91 CC	81
	82	/* Miscellaneous external connector */
	83	#define EXTCON_DOCK 60
	84	#define EXTCON_JIG 61
	85	#define EXTCON_MECHANICAL 62
	86
	87	#define EXTCON_NUM 63
806d9dd7	88
792e7e9e	89	/*
6ab6094f	90	* Define the properties of supported external connectors.
792e7e9e CC	91	*
	92	* When adding the new extcon property, they must have
	93	* the type/value/default information. Also, you have to
	94	* modify the EXTCON_PROP_[type]_START/END definitions
	95	* which mean the range of the supported properties
	96	* for each extcon type.
	97	*
	98	* The naming style of property
	99	* : EXTCON_PROP_[type]_[property name]
	100	*
	101	* EXTCON_PROP_USB_[property name] : USB property
	102	* EXTCON_PROP_CHG_[property name] : Charger property
	103	* EXTCON_PROP_JACK_[property name] : Jack property
	104	* EXTCON_PROP_DISP_[property name] : Display property
	105	*/
	106
	107	/*
	108	* Properties of EXTCON_TYPE_USB.
	109	*
	110	* - EXTCON_PROP_USB_VBUS
	111	* @type: integer (intval)
	112	* @value: 0 (low) or 1 (high)
	113	* @default: 0 (low)
2164188d CZ	114	* - EXTCON_PROP_USB_TYPEC_POLARITY
	115	* @type: integer (intval)
	116	* @value: 0 (normal) or 1 (flip)
	117	* @default: 0 (normal)
8457a1b4 GR	118	* - EXTCON_PROP_USB_SS (SuperSpeed)
	119	* @type: integer (intval)
	120	* @value: 0 (USB/USB2) or 1 (USB3)
	121	* @default: 0 (USB/USB2)
	122	*
792e7e9e CC	123	*/
792e7e9e CC	124	#define EXTCON_PROP_USB_VBUS 0
2164188d	125	#define EXTCON_PROP_USB_TYPEC_POLARITY 1
8457a1b4	126	#define EXTCON_PROP_USB_SS 2
792e7e9e CC	127
792e7e9e CC	128	#define EXTCON_PROP_USB_MIN 0
8457a1b4	129	#define EXTCON_PROP_USB_MAX 2
792e7e9e CC	130	#define EXTCON_PROP_USB_CNT (EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
	131
	132	/* Properties of EXTCON_TYPE_CHG. */
	133	#define EXTCON_PROP_CHG_MIN 50
	134	#define EXTCON_PROP_CHG_MAX 50
	135	#define EXTCON_PROP_CHG_CNT (EXTCON_PROP_CHG_MAX - EXTCON_PROP_CHG_MIN + 1)
	136
	137	/* Properties of EXTCON_TYPE_JACK. */
	138	#define EXTCON_PROP_JACK_MIN 100
	139	#define EXTCON_PROP_JACK_MAX 100
	140	#define EXTCON_PROP_JACK_CNT (EXTCON_PROP_JACK_MAX - EXTCON_PROP_JACK_MIN + 1)
	141
c7914e8d CZ	142	/*
	143	* Properties of EXTCON_TYPE_DISP.
	144	*
	145	* - EXTCON_PROP_DISP_HPD (Hot Plug Detect)
	146	* @type: integer (intval)
	147	* @value: 0 (no hpd) or 1 (hpd)
	148	* @default: 0 (no hpd)
	149	*
	150	*/
	151	#define EXTCON_PROP_DISP_HPD 150
	152
792e7e9e CC	153	/* Properties of EXTCON_TYPE_DISP. */
792e7e9e CC	154	#define EXTCON_PROP_DISP_MIN 150
c7914e8d	155	#define EXTCON_PROP_DISP_MAX 151
792e7e9e CC	156	#define EXTCON_PROP_DISP_CNT (EXTCON_PROP_DISP_MAX - EXTCON_PROP_DISP_MIN + 1)
	157
	158	/*
	159	* Define the type of property's value.
	160	*
	161	* Define the property's value as union type. Because each property
	162	* would need the different data type to store it.
	163	*/
	164	union extcon_property_value {
	165	int intval; /* type : integer (intval) */
	166	};
	167
e6cf0465	168	struct extcon_dev;
806d9dd7	169
de55d871	170	#if IS_ENABLED(CONFIG_EXTCON)
806d9dd7	171	/*
176aa360	172	* Following APIs get the connected state of each external connector.
6ab6094f	173	* The 'id' argument indicates the defined external connector.
806d9dd7	174	*/
b7365587	175	int extcon_get_state(struct extcon_dev *edev, unsigned int id);
806d9dd7	176
792e7e9e	177	/*
176aa360	178	* Following APIs get the property of each external connector.
6ab6094f CC	179	* The 'id' argument indicates the defined external connector
	180	* and the 'prop' indicates the extcon property.
	181	*
176aa360 CC	182	* And extcon_get_property_capability() get the capability of the property
176aa360 CC	183	* for each external connector. They are used to get the capability of the
6ab6094f	184	* property of each external connector based on the id and property.
792e7e9e	185	*/
b7365587	186	int extcon_get_property(struct extcon_dev *edev, unsigned int id,
792e7e9e CC	187	unsigned int prop,
792e7e9e CC	188	union extcon_property_value *prop_val);
b7365587	189	int extcon_get_property_capability(struct extcon_dev *edev,
7f2a0a16	190	unsigned int id, unsigned int prop);
7f2a0a16	191
74c5d09b	192	/*
6ab6094f CC	193	* Following APIs register the notifier block in order to detect
	194	* the change of both state and property value for each external connector.
	195	*
815429b3 CC	196	* extcon_register_notifier(edev, id, nb) : Register a notifier block
	197	* for specific external connector of the extcon.
	198	* extcon_register_notifier_all(edev, nb) : Register a notifier block
	199	* for all supported external connectors of the extcon.
74c5d09b	200	*/
b7365587	201	int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
ab8a8fbe	202	struct notifier_block *nb);
b7365587	203	int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
ab8a8fbe	204	struct notifier_block *nb);
b7365587	205	int devm_extcon_register_notifier(struct device *dev,
58f38656 CC	206	struct extcon_dev *edev, unsigned int id,
58f38656 CC	207	struct notifier_block *nb);
b7365587	208	void devm_extcon_unregister_notifier(struct device *dev,
58f38656 CC	209	struct extcon_dev *edev, unsigned int id,
58f38656 CC	210	struct notifier_block *nb);
1ad94ffe	211
b7365587	212	int extcon_register_notifier_all(struct extcon_dev *edev,
815429b3	213	struct notifier_block *nb);
b7365587	214	int extcon_unregister_notifier_all(struct extcon_dev *edev,
815429b3	215	struct notifier_block *nb);
b7365587	216	int devm_extcon_register_notifier_all(struct device *dev,
815429b3 CC	217	struct extcon_dev *edev,
815429b3 CC	218	struct notifier_block *nb);
b7365587	219	void devm_extcon_unregister_notifier_all(struct device *dev,
815429b3 CC	220	struct extcon_dev *edev,
	221	struct notifier_block *nb);
	222
1ad94ffe	223	/*
6ab6094f	224	* Following APIs get the extcon_dev from devicetree or by through extcon name.
1ad94ffe	225	*/
b7365587 CC	226	struct extcon_dev extcon_get_extcon_dev(const char extcon_name);
	227	struct extcon_dev extcon_find_edev_by_node(struct device_node node);
	228	struct extcon_dev extcon_get_edev_by_phandle(struct device dev,
b9ec23c0	229	int index);
707d7550	230
6ab6094f	231	/* Following API get the name of extcon device. */
b7365587	232	const char extcon_get_edev_name(struct extcon_dev edev);
707d7550	233
de55d871	234	#else /* CONFIG_EXTCON */
575c2b86	235	static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
806d9dd7 MH	236	{
	237	return 0;
	238	}
	239
cb9850d0	240	static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,
ab8a8fbe CC	241	unsigned int prop,
ab8a8fbe CC	242	union extcon_property_value *prop_val)
cb9850d0 KVA	243	{
	244	return 0;
	245	}
792e7e9e	246
7f2a0a16	247	static inline int extcon_get_property_capability(struct extcon_dev *edev,
ab8a8fbe	248	unsigned int id, unsigned int prop)
7f2a0a16 CC	249	{
	250	return 0;
	251	}
	252
74c5d09b	253	static inline int extcon_register_notifier(struct extcon_dev *edev,
ab8a8fbe	254	unsigned int id, struct notifier_block *nb)
74c5d09b DK	255	{
	256	return 0;
	257	}
	258
	259	static inline int extcon_unregister_notifier(struct extcon_dev *edev,
ab8a8fbe	260	unsigned int id, struct notifier_block *nb)
74c5d09b DK	261	{
	262	return 0;
	263	}
	264
58f38656 CC	265	static inline int devm_extcon_register_notifier(struct device *dev,
	266	struct extcon_dev *edev, unsigned int id,
	267	struct notifier_block *nb)
	268	{
	269	return -ENOSYS;
	270	}
	271
	272	static inline void devm_extcon_unregister_notifier(struct device *dev,
	273	struct extcon_dev *edev, unsigned int id,
	274	struct notifier_block *nb) { }
	275
c9570d4a KK	276	static inline int extcon_register_notifier_all(struct extcon_dev *edev,
	277	struct notifier_block *nb)
	278	{
	279	return 0;
	280	}
	281
	282	static inline int extcon_unregister_notifier_all(struct extcon_dev *edev,
	283	struct notifier_block *nb)
	284	{
	285	return 0;
	286	}
	287
	288	static inline int devm_extcon_register_notifier_all(struct device *dev,
	289	struct extcon_dev *edev,
	290	struct notifier_block *nb)
	291	{
	292	return 0;
	293	}
	294
	295	static inline void devm_extcon_unregister_notifier_all(struct device *dev,
	296	struct extcon_dev *edev,
	297	struct notifier_block *nb) { }
	298
6ab6094f CC	299	static inline struct extcon_dev extcon_get_extcon_dev(const char extcon_name)
6ab6094f CC	300	{
58e4a2d2	301	return NULL;
6ab6094f CC	302	}
6ab6094f CC	303
370ed7a9 AH	304	static inline struct extcon_dev extcon_find_edev_by_node(struct device_node node)
	305	{
	306	return ERR_PTR(-ENODEV);
	307	}
	308
830ae442	309	static inline struct extcon_dev extcon_get_edev_by_phandle(struct device dev,
ab8a8fbe	310	int index)
806d9dd7	311	{
830ae442	312	return ERR_PTR(-ENODEV);
806d9dd7	313	}
995bb109 MR	314
	315	static inline const char extcon_get_edev_name(struct extcon_dev edev)
	316	{
	317	return NULL;
	318	}
830ae442	319	#endif /* CONFIG_EXTCON */
806d9dd7	320
830ae442 CC	321	/*
	322	* Following structure and API are deprecated. EXTCON remains the function
	323	* definition to prevent the build break.
	324	*/
	325	struct extcon_specific_cable_nb {
	326	struct notifier_block *user_nb;
	327	int cable_index;
	328	struct extcon_dev *edev;
	329	unsigned long previous_value;
	330	};
	331
	332	static inline int extcon_register_interest(struct extcon_specific_cable_nb *obj,
ab8a8fbe CC	333	const char extcon_name, const char cable_name,
ab8a8fbe CC	334	struct notifier_block *nb)
806d9dd7	335	{
830ae442	336	return -EINVAL;
806d9dd7	337	}
1ad94ffe	338
ab8a8fbe	339	static inline int extcon_unregister_interest(struct extcon_specific_cable_nb *obj)
1ad94ffe	340	{
830ae442	341	return -EINVAL;
1ad94ffe	342	}
de55d871	343	#endif /* __LINUX_EXTCON_H__ */