LXR linux/drivers/pinctrl/pinconf.h

   1/*
   2 * Internal interface between the core pin control system and the
   3 * pin config portions
   4 *
   5 * Copyright (C) 2011 ST-Ericsson SA
   6 * Written on behalf of Linaro for ST-Ericsson
   7 * Based on bits of regulator core, gpio core and clk core
   8 *
   9 * Author: Linus Walleij <linus.walleij@linaro.org>
  10 *
  11 * License terms: GNU General Public License (GPL) version 2
  12 */
  13
  14#ifdef CONFIG_PINCONF
  15
  16int pinconf_check_ops(struct pinctrl_dev *pctldev);
  17int pinconf_validate_map(struct pinctrl_map const *map, int i);
  18int pinconf_map_to_setting(struct pinctrl_map const *map,
  19                          struct pinctrl_setting *setting);
  20void pinconf_free_setting(struct pinctrl_setting const *setting);
  21int pinconf_apply_setting(struct pinctrl_setting const *setting);
  22void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map);
  23void pinconf_show_setting(struct seq_file *s,
  24                          struct pinctrl_setting const *setting);
  25void pinconf_init_device_debugfs(struct dentry *devroot,
  26                                 struct pinctrl_dev *pctldev);
  27
  28/*
  29 * You will only be interested in these if you're using PINCONF
  30 * so don't supply any stubs for these.
  31 */
  32int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
  33                           unsigned long *config);
  34int pin_config_group_get(const char *dev_name, const char *pin_group,
  35                         unsigned long *config);
  36
  37#else
  38
  39static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
  40{
  41        return 0;
  42}
  43
  44static inline int pinconf_validate_map(struct pinctrl_map const *map, int i)
  45{
  46        return 0;
  47}
  48
  49static inline int pinconf_map_to_setting(struct pinctrl_map const *map,
  50                          struct pinctrl_setting *setting)
  51{
  52        return 0;
  53}
  54
  55static inline void pinconf_free_setting(struct pinctrl_setting const *setting)
  56{
  57}
  58
  59static inline int pinconf_apply_setting(struct pinctrl_setting const *setting)
  60{
  61        return 0;
  62}
  63
  64static inline void pinconf_show_map(struct seq_file *s,
  65                                    struct pinctrl_map const *map)
  66{
  67}
  68
  69static inline void pinconf_show_setting(struct seq_file *s,
  70                          struct pinctrl_setting const *setting)
  71{
  72}
  73
  74static inline void pinconf_init_device_debugfs(struct dentry *devroot,
  75                                               struct pinctrl_dev *pctldev)
  76{
  77}
  78
  79#endif
  80
  81/*
  82 * The following functions are available if the driver uses the generic
  83 * pin config.
  84 */
  85
  86#ifdef CONFIG_GENERIC_PINCONF
  87
  88void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
  89                              struct seq_file *s, unsigned pin);
  90
  91void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
  92                              struct seq_file *s, const char *gname);
  93
  94#else
  95
  96static inline void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
  97                                            struct seq_file *s,
  98                                            unsigned pin)
  99{
 100        return;
 101}
 102
 103static inline void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
 104                                              struct seq_file *s,
 105                                              const char *gname)
 106{
 107        return;
 108}
 109
 110#endif
 111