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