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| 1 | +/* SPDX-License-Identifier: GPL-2.0-only */ |
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1 | 2 | /* |
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2 | 3 | * External Connector (extcon) framework |
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3 | 4 | * - linux/include/linux/extcon-provider.h for extcon provider device driver. |
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4 | 5 | * |
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5 | 6 | * Copyright (C) 2017 Samsung Electronics |
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6 | 7 | * Author: Chanwoo Choi <cw00.choi@samsung.com> |
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7 | | - * |
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8 | | - * This software is licensed under the terms of the GNU General Public |
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9 | | - * License version 2, as published by the Free Software Foundation, and |
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10 | | - * may be copied, distributed, and modified under those terms. |
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11 | | - * |
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12 | | - * This program is distributed in the hope that it will be useful, |
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13 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | | - * GNU General Public License for more details. |
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16 | 8 | */ |
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17 | 9 | |
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18 | 10 | #ifndef __LINUX_EXTCON_PROVIDER_H__ |
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.. | .. |
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25 | 17 | #if IS_ENABLED(CONFIG_EXTCON) |
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26 | 18 | |
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27 | 19 | /* Following APIs register/unregister the extcon device. */ |
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28 | | -extern int extcon_dev_register(struct extcon_dev *edev); |
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29 | | -extern void extcon_dev_unregister(struct extcon_dev *edev); |
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30 | | -extern int devm_extcon_dev_register(struct device *dev, |
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| 20 | +int extcon_dev_register(struct extcon_dev *edev); |
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| 21 | +void extcon_dev_unregister(struct extcon_dev *edev); |
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| 22 | +int devm_extcon_dev_register(struct device *dev, |
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31 | 23 | struct extcon_dev *edev); |
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32 | | -extern void devm_extcon_dev_unregister(struct device *dev, |
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| 24 | +void devm_extcon_dev_unregister(struct device *dev, |
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33 | 25 | struct extcon_dev *edev); |
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34 | 26 | |
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35 | 27 | /* Following APIs allocate/free the memory of the extcon device. */ |
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36 | | -extern struct extcon_dev *extcon_dev_allocate(const unsigned int *cable); |
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37 | | -extern void extcon_dev_free(struct extcon_dev *edev); |
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38 | | -extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, |
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| 28 | +struct extcon_dev *extcon_dev_allocate(const unsigned int *cable); |
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| 29 | +void extcon_dev_free(struct extcon_dev *edev); |
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| 30 | +struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, |
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39 | 31 | const unsigned int *cable); |
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40 | | -extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev); |
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| 32 | +void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev); |
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41 | 33 | |
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42 | 34 | /* Synchronize the state and property value for each external connector. */ |
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43 | | -extern int extcon_sync(struct extcon_dev *edev, unsigned int id); |
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| 35 | +int extcon_sync(struct extcon_dev *edev, unsigned int id); |
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44 | 36 | |
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45 | 37 | /* |
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46 | 38 | * Following APIs set the connected state of each external connector. |
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47 | 39 | * The 'id' argument indicates the defined external connector. |
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48 | 40 | */ |
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49 | | -extern int extcon_set_state(struct extcon_dev *edev, unsigned int id, |
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| 41 | +int extcon_set_state(struct extcon_dev *edev, unsigned int id, |
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50 | 42 | bool state); |
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51 | | -extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, |
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| 43 | +int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id, |
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52 | 44 | bool state); |
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53 | 45 | |
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54 | 46 | /* |
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.. | .. |
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60 | 52 | * for each external connector. They are used to set the capability of the |
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61 | 53 | * property of each external connector based on the id and property. |
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62 | 54 | */ |
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63 | | -extern int extcon_set_property(struct extcon_dev *edev, unsigned int id, |
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| 55 | +int extcon_set_property(struct extcon_dev *edev, unsigned int id, |
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64 | 56 | unsigned int prop, |
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65 | 57 | union extcon_property_value prop_val); |
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66 | | -extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id, |
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| 58 | +int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id, |
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67 | 59 | unsigned int prop, |
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68 | 60 | union extcon_property_value prop_val); |
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69 | | -extern int extcon_set_property_capability(struct extcon_dev *edev, |
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| 61 | +int extcon_set_property_capability(struct extcon_dev *edev, |
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70 | 62 | unsigned int id, unsigned int prop); |
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71 | 63 | |
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72 | 64 | #else /* CONFIG_EXTCON */ |
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