142 lines
3.5 KiB
C
142 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Internal interface between the core pin control system and the
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* pin config portions
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*
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* Copyright (C) 2011 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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* Based on bits of regulator core, gpio core and clk core
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*/
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#include <linux/errno.h>
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struct dentry;
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struct device_node;
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struct seq_file;
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struct pinctrl_dev;
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struct pinctrl_map;
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struct pinctrl_setting;
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#ifdef CONFIG_PINCONF
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int pinconf_check_ops(struct pinctrl_dev *pctldev);
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int pinconf_validate_map(const struct pinctrl_map *map, int i);
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int pinconf_map_to_setting(const struct pinctrl_map *map,
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struct pinctrl_setting *setting);
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void pinconf_free_setting(const struct pinctrl_setting *setting);
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int pinconf_apply_setting(const struct pinctrl_setting *setting);
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int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned int pin,
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unsigned long *configs, size_t nconfigs);
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/*
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* You will only be interested in these if you're using PINCONF
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* so don't supply any stubs for these.
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*/
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int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned int pin,
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unsigned long *config);
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int pin_config_group_get(const char *dev_name, const char *pin_group,
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unsigned long *config);
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#else
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static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
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{
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return 0;
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}
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static inline int pinconf_validate_map(const struct pinctrl_map *map, int i)
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{
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return 0;
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}
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static inline int pinconf_map_to_setting(const struct pinctrl_map *map,
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struct pinctrl_setting *setting)
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{
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return 0;
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}
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static inline void pinconf_free_setting(const struct pinctrl_setting *setting)
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{
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}
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static inline int pinconf_apply_setting(const struct pinctrl_setting *setting)
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{
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return 0;
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}
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static inline int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned int pin,
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unsigned long *configs, size_t nconfigs)
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{
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return -ENOTSUPP;
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}
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#endif
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#if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS)
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void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map);
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void pinconf_show_setting(struct seq_file *s,
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const struct pinctrl_setting *setting);
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void pinconf_init_device_debugfs(struct dentry *devroot,
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struct pinctrl_dev *pctldev);
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#else
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static inline void pinconf_show_map(struct seq_file *s,
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const struct pinctrl_map *map)
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{
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}
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static inline void pinconf_show_setting(struct seq_file *s,
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const struct pinctrl_setting *setting)
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{
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}
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static inline void pinconf_init_device_debugfs(struct dentry *devroot,
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struct pinctrl_dev *pctldev)
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{
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}
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#endif
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/*
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* The following functions are available if the driver uses the generic
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* pin config.
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*/
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#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS)
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void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev,
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struct seq_file *s, const char *gname,
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unsigned int pin);
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void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
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struct seq_file *s, unsigned long config);
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#else
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static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev,
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struct seq_file *s,
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const char *gname, unsigned int pin)
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{
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return;
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}
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static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
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struct seq_file *s,
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unsigned long config)
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{
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return;
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}
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#endif
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#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF)
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int pinconf_generic_parse_dt_config(struct device_node *np,
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struct pinctrl_dev *pctldev,
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unsigned long **configs,
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unsigned int *nconfigs);
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#endif
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