1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * Interface the pinconfig portions of the pin 2 * Interface the pinconfig portions of the pinctrl subsystem
4 * 3 *
5 * Copyright (C) 2011 ST-Ericsson SA 4 * Copyright (C) 2011 ST-Ericsson SA
6 * Written on behalf of Linaro for ST-Ericsson 5 * Written on behalf of Linaro for ST-Ericsson
7 * This interface is used in the core to keep 6 * This interface is used in the core to keep track of pins.
8 * 7 *
9 * Author: Linus Walleij <linus.walleij@linaro 8 * Author: Linus Walleij <linus.walleij@linaro.org>
>> 9 *
>> 10 * License terms: GNU General Public License (GPL) version 2
10 */ 11 */
11 #ifndef __LINUX_PINCTRL_PINCONF_H 12 #ifndef __LINUX_PINCTRL_PINCONF_H
12 #define __LINUX_PINCTRL_PINCONF_H 13 #define __LINUX_PINCTRL_PINCONF_H
13 14
14 #include <linux/types.h> !! 15 #ifdef CONFIG_PINCONF
>> 16
>> 17 #include <linux/pinctrl/machine.h>
15 18
16 struct pinctrl_dev; 19 struct pinctrl_dev;
17 struct seq_file; 20 struct seq_file;
18 21
19 /** 22 /**
20 * struct pinconf_ops - pin config operations, 23 * struct pinconf_ops - pin config operations, to be implemented by
21 * pin configuration capable drivers. 24 * pin configuration capable drivers.
22 * @is_generic: for pin controllers that want 25 * @is_generic: for pin controllers that want to use the generic interface,
23 * this flag tells the framework that it' 26 * this flag tells the framework that it's generic.
24 * @pin_config_get: get the config of a certai 27 * @pin_config_get: get the config of a certain pin, if the requested config
25 * is not available on this controller th 28 * is not available on this controller this should return -ENOTSUPP
26 * and if it is available but disabled it 29 * and if it is available but disabled it should return -EINVAL
27 * @pin_config_set: configure an individual pi 30 * @pin_config_set: configure an individual pin
28 * @pin_config_group_get: get configurations f 31 * @pin_config_group_get: get configurations for an entire pin group; should
29 * return -ENOTSUPP and -EINVAL using the 32 * return -ENOTSUPP and -EINVAL using the same rules as pin_config_get.
30 * @pin_config_group_set: configure all pins i 33 * @pin_config_group_set: configure all pins in a group
>> 34 * @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration
31 * @pin_config_dbg_show: optional debugfs disp 35 * @pin_config_dbg_show: optional debugfs display hook that will provide
32 * per-device info for a certain pin in d 36 * per-device info for a certain pin in debugfs
33 * @pin_config_group_dbg_show: optional debugf 37 * @pin_config_group_dbg_show: optional debugfs display hook that will provide
34 * per-device info for a certain group in 38 * per-device info for a certain group in debugfs
35 * @pin_config_config_dbg_show: optional debug 39 * @pin_config_config_dbg_show: optional debugfs display hook that will decode
36 * and display a driver's pin configurati 40 * and display a driver's pin configuration parameter
37 */ 41 */
38 struct pinconf_ops { 42 struct pinconf_ops {
39 #ifdef CONFIG_GENERIC_PINCONF 43 #ifdef CONFIG_GENERIC_PINCONF
40 bool is_generic; 44 bool is_generic;
41 #endif 45 #endif
42 int (*pin_config_get) (struct pinctrl_ 46 int (*pin_config_get) (struct pinctrl_dev *pctldev,
43 unsigned int pi !! 47 unsigned pin,
44 unsigned long * 48 unsigned long *config);
45 int (*pin_config_set) (struct pinctrl_ 49 int (*pin_config_set) (struct pinctrl_dev *pctldev,
46 unsigned int pi !! 50 unsigned pin,
47 unsigned long * 51 unsigned long *configs,
48 unsigned int nu !! 52 unsigned num_configs);
49 int (*pin_config_group_get) (struct pi 53 int (*pin_config_group_get) (struct pinctrl_dev *pctldev,
50 unsigned !! 54 unsigned selector,
51 unsigned 55 unsigned long *config);
52 int (*pin_config_group_set) (struct pi 56 int (*pin_config_group_set) (struct pinctrl_dev *pctldev,
53 unsigned !! 57 unsigned selector,
54 unsigned 58 unsigned long *configs,
55 unsigned !! 59 unsigned num_configs);
>> 60 int (*pin_config_dbg_parse_modify) (struct pinctrl_dev *pctldev,
>> 61 const char *arg,
>> 62 unsigned long *config);
56 void (*pin_config_dbg_show) (struct pi 63 void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev,
57 struct se 64 struct seq_file *s,
58 unsigned !! 65 unsigned offset);
59 void (*pin_config_group_dbg_show) (str 66 void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
60 str 67 struct seq_file *s,
61 uns !! 68 unsigned selector);
62 void (*pin_config_config_dbg_show) (st 69 void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev,
63 st 70 struct seq_file *s,
64 un 71 unsigned long config);
65 }; 72 };
>> 73
>> 74 #endif
66 75
67 #endif /* __LINUX_PINCTRL_PINCONF_H */ 76 #endif /* __LINUX_PINCTRL_PINCONF_H */
68 77
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