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