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2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b 
 kernel/include/linux/extcon.h
....@@ -1,3 +1,4 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * External Connector (extcon) framework
34  * - linux/include/linux/extcon.h for extcon consumer device driver.
....@@ -12,15 +13,6 @@
1213  * based on switch class driver
1314  * Copyright (C) 2008 Google, Inc.
1415  * Author: Mike Lockwood <lockwood@android.com>
15
- *
16
- * This software is licensed under the terms of the GNU General Public
17
- * License version 2, as published by the Free Software Foundation, and
18
- * may be copied, distributed, and modified under those terms.
19
- *
20
- * This program is distributed in the hope that it will be useful,
21
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
22
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
23
- * GNU General Public License for more details.
2416  */
2517 
2618 #ifndef __LINUX_EXTCON_H__
....@@ -85,7 +77,8 @@
8577 #define EXTCON_DISP_VGA		43	/* Video Graphics Array */
8678 #define EXTCON_DISP_DP		44	/* Display Port */
8779 #define EXTCON_DISP_HMD		45	/* Head-Mounted Display */
88
-#define EXTCON_DISP_HDMI_AUDIO	46	/* High-Definition Multimedia Interface Audio */
80
+#define EXTCON_DISP_CVBS	46	/* Composite Video Broadcast Signal */
81
+#define EXTCON_DISP_EDP		47	/* Embedded Display Port */
8982 
9083 /* Miscellaneous external connector */
9184 #define EXTCON_DOCK		60
....@@ -127,19 +120,14 @@
127120  * @type:       integer (intval)
128121  * @value:      0 (USB/USB2) or 1 (USB3)
129122  * @default:    0 (USB/USB2)
130
- * - EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT
131
- * @type:       integer (intval)
132
- * @value:      0 (default current), 1 (medium or high current)
133
- * @default:    0 (default current)
134123  *
135124  */
136125 #define EXTCON_PROP_USB_VBUS		0
137126 #define EXTCON_PROP_USB_TYPEC_POLARITY	1
138127 #define EXTCON_PROP_USB_SS		2
139
-#define EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT	3
140128 
141129 #define EXTCON_PROP_USB_MIN		0
142
-#define EXTCON_PROP_USB_MAX		3
130
+#define EXTCON_PROP_USB_MAX		2
143131 #define EXTCON_PROP_USB_CNT	(EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
144132 
145133 /* Properties of EXTCON_TYPE_CHG. */
....@@ -185,7 +173,7 @@
185173  * Following APIs get the connected state of each external connector.
186174  * The 'id' argument indicates the defined external connector.
187175  */
188
-extern int extcon_get_state(struct extcon_dev *edev, unsigned int id);
176
+int extcon_get_state(struct extcon_dev *edev, unsigned int id);
189177 
190178 /*
191179  * Following APIs get the property of each external connector.
....@@ -196,10 +184,10 @@
196184  * for each external connector. They are used to get the capability of the
197185  * property of each external connector based on the id and property.
198186  */
199
-extern int extcon_get_property(struct extcon_dev *edev, unsigned int id,
187
+int extcon_get_property(struct extcon_dev *edev, unsigned int id,
200188 				unsigned int prop,
201189 				union extcon_property_value *prop_val);
202
-extern int extcon_get_property_capability(struct extcon_dev *edev,
190
+int extcon_get_property_capability(struct extcon_dev *edev,
203191 				unsigned int id, unsigned int prop);
204192 
205193 /*
....@@ -211,45 +199,39 @@
211199  * extcon_register_notifier_all(*edev, *nb) : Register a notifier block
212200  *			for all supported external connectors of the extcon.
213201  */
214
-extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
202
+int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
215203 				struct notifier_block *nb);
216
-extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
204
+int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
217205 				struct notifier_block *nb);
218
-extern int extcon_register_blocking_notifier(struct extcon_dev *edev,
219
-		unsigned int id, struct notifier_block *nb);
220
-extern int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
221
-		unsigned int id, struct notifier_block *nb);
222
-extern int devm_extcon_register_notifier(struct device *dev,
206
+int devm_extcon_register_notifier(struct device *dev,
223207 				struct extcon_dev *edev, unsigned int id,
224208 				struct notifier_block *nb);
225
-extern void devm_extcon_unregister_notifier(struct device *dev,
209
+void devm_extcon_unregister_notifier(struct device *dev,
226210 				struct extcon_dev *edev, unsigned int id,
227211 				struct notifier_block *nb);
228212 
229
-extern int extcon_register_notifier_all(struct extcon_dev *edev,
213
+int extcon_register_notifier_all(struct extcon_dev *edev,
230214 				struct notifier_block *nb);
231
-extern int extcon_unregister_notifier_all(struct extcon_dev *edev,
215
+int extcon_unregister_notifier_all(struct extcon_dev *edev,
232216 				struct notifier_block *nb);
233
-extern int devm_extcon_register_notifier_all(struct device *dev,
217
+int devm_extcon_register_notifier_all(struct device *dev,
234218 				struct extcon_dev *edev,
235219 				struct notifier_block *nb);
236
-extern void devm_extcon_unregister_notifier_all(struct device *dev,
220
+void devm_extcon_unregister_notifier_all(struct device *dev,
237221 				struct extcon_dev *edev,
238222 				struct notifier_block *nb);
239223 
240224 /*
241225  * Following APIs get the extcon_dev from devicetree or by through extcon name.
242226  */
243
-extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
244
-extern struct extcon_dev *extcon_find_edev_by_node(struct device_node *node);
245
-extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
227
+struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
228
+struct extcon_dev *extcon_find_edev_by_node(struct device_node *node);
229
+struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
246230 						     int index);
247231 
248232 /* Following API get the name of extcon device. */
249
-extern const char *extcon_get_edev_name(struct extcon_dev *edev);
233
+const char *extcon_get_edev_name(struct extcon_dev *edev);
250234 
251
-extern int extcon_blocking_sync(struct extcon_dev *edev, unsigned int id,
252
-							bool val);
253235 #else /* CONFIG_EXTCON */
254236 static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
255237 {
....@@ -277,20 +259,6 @@
277259 
278260 static inline int extcon_unregister_notifier(struct extcon_dev *edev,
279261 				unsigned int id, struct notifier_block *nb)
280
-{
281
-	return 0;
282
-}
283
-
284
-static inline int extcon_register_blocking_notifier(struct extcon_dev *edev,
285
-					unsigned int id,
286
-					struct notifier_block *nb)
287
-{
288
-	return 0;
289
-}
290
-
291
-static inline int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
292
-					unsigned int id,
293
-					struct notifier_block *nb)
294262 {
295263 	return 0;
296264 }
....@@ -334,11 +302,6 @@
334302 	return ERR_PTR(-ENODEV);
335303 }
336304 
337
-static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
338
-{
339
-  return NULL;
340
-}
341
-
342305 static inline struct extcon_dev *extcon_find_edev_by_node(struct device_node *node)
343306 {
344307 	return ERR_PTR(-ENODEV);
....@@ -349,6 +312,11 @@
349312 {
350313 	return ERR_PTR(-ENODEV);
351314 }
315
+
316
+static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
317
+{
318
+	return NULL;
319
+}
352320 #endif /* CONFIG_EXTCON */
353321 
354322 /*