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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb 
 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__
....@@ -85,6 +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 */
80
+#define EXTCON_DISP_CVBS	46	/* Composite Video Broadcast Signal */
81
+#define EXTCON_DISP_EDP		47	/* Embedded Display Port */
8882 
8983 /* Miscellaneous external connector */
9084 #define EXTCON_DOCK		60
....@@ -126,19 +120,14 @@
126120  * @type:       integer (intval)
127121  * @value:      0 (USB/USB2) or 1 (USB3)
128122  * @default:    0 (USB/USB2)
129
- * - EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT
130
- * @type:       integer (intval)
131
- * @value:      0 (default current), 1 (medium or high current)
132
- * @default:    0 (default current)
133123  *
134124  */
135125 #define EXTCON_PROP_USB_VBUS		0
136126 #define EXTCON_PROP_USB_TYPEC_POLARITY	1
137127 #define EXTCON_PROP_USB_SS		2
138
-#define EXTCON_PROP_USB_TYPEC_MED_HIGH_CURRENT	3
139128 
140129 #define EXTCON_PROP_USB_MIN		0
141
-#define EXTCON_PROP_USB_MAX		3
130
+#define EXTCON_PROP_USB_MAX		2
142131 #define EXTCON_PROP_USB_CNT	(EXTCON_PROP_USB_MAX - EXTCON_PROP_USB_MIN + 1)
143132 
144133 /* Properties of EXTCON_TYPE_CHG. */
....@@ -184,7 +173,7 @@
184173  * Following APIs get the connected state of each external connector.
185174  * The 'id' argument indicates the defined external connector.
186175  */
187
-extern int extcon_get_state(struct extcon_dev *edev, unsigned int id);
176
+int extcon_get_state(struct extcon_dev *edev, unsigned int id);
188177 
189178 /*
190179  * Following APIs get the property of each external connector.
....@@ -195,10 +184,10 @@
195184  * for each external connector. They are used to get the capability of the
196185  * property of each external connector based on the id and property.
197186  */
198
-extern int extcon_get_property(struct extcon_dev *edev, unsigned int id,
187
+int extcon_get_property(struct extcon_dev *edev, unsigned int id,
199188 				unsigned int prop,
200189 				union extcon_property_value *prop_val);
201
-extern int extcon_get_property_capability(struct extcon_dev *edev,
190
+int extcon_get_property_capability(struct extcon_dev *edev,
202191 				unsigned int id, unsigned int prop);
203192 
204193 /*
....@@ -210,45 +199,39 @@
210199  * extcon_register_notifier_all(*edev, *nb) : Register a notifier block
211200  *			for all supported external connectors of the extcon.
212201  */
213
-extern int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
202
+int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
214203 				struct notifier_block *nb);
215
-extern int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
204
+int extcon_unregister_notifier(struct extcon_dev *edev, unsigned int id,
216205 				struct notifier_block *nb);
217
-extern int extcon_register_blocking_notifier(struct extcon_dev *edev,
218
-		unsigned int id, struct notifier_block *nb);
219
-extern int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
220
-		unsigned int id, struct notifier_block *nb);
221
-extern int devm_extcon_register_notifier(struct device *dev,
206
+int devm_extcon_register_notifier(struct device *dev,
222207 				struct extcon_dev *edev, unsigned int id,
223208 				struct notifier_block *nb);
224
-extern void devm_extcon_unregister_notifier(struct device *dev,
209
+void devm_extcon_unregister_notifier(struct device *dev,
225210 				struct extcon_dev *edev, unsigned int id,
226211 				struct notifier_block *nb);
227212 
228
-extern int extcon_register_notifier_all(struct extcon_dev *edev,
213
+int extcon_register_notifier_all(struct extcon_dev *edev,
229214 				struct notifier_block *nb);
230
-extern int extcon_unregister_notifier_all(struct extcon_dev *edev,
215
+int extcon_unregister_notifier_all(struct extcon_dev *edev,
231216 				struct notifier_block *nb);
232
-extern int devm_extcon_register_notifier_all(struct device *dev,
217
+int devm_extcon_register_notifier_all(struct device *dev,
233218 				struct extcon_dev *edev,
234219 				struct notifier_block *nb);
235
-extern void devm_extcon_unregister_notifier_all(struct device *dev,
220
+void devm_extcon_unregister_notifier_all(struct device *dev,
236221 				struct extcon_dev *edev,
237222 				struct notifier_block *nb);
238223 
239224 /*
240225  * Following APIs get the extcon_dev from devicetree or by through extcon name.
241226  */
242
-extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
243
-extern struct extcon_dev *extcon_find_edev_by_node(struct device_node *node);
244
-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,
245230 						     int index);
246231 
247232 /* Following API get the name of extcon device. */
248
-extern const char *extcon_get_edev_name(struct extcon_dev *edev);
233
+const char *extcon_get_edev_name(struct extcon_dev *edev);
249234 
250
-extern int extcon_blocking_sync(struct extcon_dev *edev, unsigned int id,
251
-							bool val);
252235 #else /* CONFIG_EXTCON */
253236 static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
254237 {
....@@ -276,20 +259,6 @@
276259 
277260 static inline int extcon_unregister_notifier(struct extcon_dev *edev,
278261 				unsigned int id, struct notifier_block *nb)
279
-{
280
-	return 0;
281
-}
282
-
283
-static inline int extcon_register_blocking_notifier(struct extcon_dev *edev,
284
-					unsigned int id,
285
-					struct notifier_block *nb)
286
-{
287
-	return 0;
288
-}
289
-
290
-static inline int extcon_unregister_blocking_notifier(struct extcon_dev *edev,
291
-					unsigned int id,
292
-					struct notifier_block *nb)
293262 {
294263 	return 0;
295264 }
....@@ -333,11 +302,6 @@
333302 	return ERR_PTR(-ENODEV);
334303 }
335304 
336
-static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
337
-{
338
-  return NULL;
339
-}
340
-
341305 static inline struct extcon_dev *extcon_find_edev_by_node(struct device_node *node)
342306 {
343307 	return ERR_PTR(-ENODEV);
....@@ -348,6 +312,11 @@
348312 {
349313 	return ERR_PTR(-ENODEV);
350314 }
315
+
316
+static inline const char *extcon_get_edev_name(struct extcon_dev *edev)
317
+{
318
+	return NULL;
319
+}
351320 #endif /* CONFIG_EXTCON */
352321 
353322 /*