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 <linus.walleij@linaro.org> 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#include <linux/pinctrl/machine.h> 18 19struct pinctrl_dev; 20struct seq_file; 21 22/** 23 * struct pinconf_ops - pin config operations, to be implemented by 24 * pin configuration capable drivers. 25 * @is_generic: for pin controllers that want to use the generic interface, 26 * this flag tells the framework that it's generic. 27 * @pin_config_get: get the config of a certain pin, if the requested config 28 * is not available on this controller this should return -ENOTSUPP 29 * and if it is available but disabled it should return -EINVAL 30 * @pin_config_set: configure an individual pin 31 * @pin_config_group_get: get configurations for an entire pin group 32 * @pin_config_group_set: configure all pins in a group 33 * @pin_config_dbg_parse_modify: optional debugfs to modify a pin configuration 34 * @pin_config_dbg_show: optional debugfs display hook that will provide 35 * per-device info for a certain pin in debugfs 36 * @pin_config_group_dbg_show: optional debugfs display hook that will provide 37 * per-device info for a certain group in debugfs 38 * @pin_config_config_dbg_show: optional debugfs display hook that will decode 39 * and display a driver's pin configuration parameter 40 */ 41struct pinconf_ops { 42#ifdef CONFIG_GENERIC_PINCONF 43 bool is_generic; 44#endif 45 int (*pin_config_get) (struct pinctrl_dev *pctldev, 46 unsigned pin, 47 unsigned long *config); 48 int (*pin_config_set) (struct pinctrl_dev *pctldev, 49 unsigned pin, 50 unsigned long config); 51 int (*pin_config_group_get) (struct pinctrl_dev *pctldev, 52 unsigned selector, 53 unsigned long *config); 54 int (*pin_config_group_set) (struct pinctrl_dev *pctldev, 55 unsigned selector, 56 unsigned long config); 57 int (*pin_config_dbg_parse_modify) (struct pinctrl_dev *pctldev, 58 const char *arg, 59 unsigned long *config); 60 void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev, 61 struct seq_file *s, 62 unsigned offset); 63 void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev, 64 struct seq_file *s, 65 unsigned selector); 66 void (*pin_config_config_dbg_show) (struct pinctrl_dev *pctldev, 67 struct seq_file *s, 68 unsigned long config); 69}; 70 71#endif 72 73#endif /* __LINUX_PINCTRL_PINCONF_H */ 74