diff options
Diffstat (limited to 'drivers/pinctrl/pinconf.h')
-rw-r--r-- | drivers/pinctrl/pinconf.h | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h new file mode 100644 index 000000000..6c722505f --- /dev/null +++ b/drivers/pinctrl/pinconf.h @@ -0,0 +1,132 @@ +/* + * Internal interface between the core pin control system and the + * pin config portions + * + * Copyright (C) 2011 ST-Ericsson SA + * Written on behalf of Linaro for ST-Ericsson + * Based on bits of regulator core, gpio core and clk core + * + * Author: Linus Walleij <linus.walleij@linaro.org> + * + * License terms: GNU General Public License (GPL) version 2 + */ + +#ifdef CONFIG_PINCONF + +int pinconf_check_ops(struct pinctrl_dev *pctldev); +int pinconf_validate_map(const struct pinctrl_map *map, int i); +int pinconf_map_to_setting(const struct pinctrl_map *map, + struct pinctrl_setting *setting); +void pinconf_free_setting(const struct pinctrl_setting *setting); +int pinconf_apply_setting(const struct pinctrl_setting *setting); + +int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *configs, size_t nconfigs); + +/* + * You will only be interested in these if you're using PINCONF + * so don't supply any stubs for these. + */ +int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *config); +int pin_config_group_get(const char *dev_name, const char *pin_group, + unsigned long *config); + +#else + +static inline int pinconf_check_ops(struct pinctrl_dev *pctldev) +{ + return 0; +} + +static inline int pinconf_validate_map(const struct pinctrl_map *map, int i) +{ + return 0; +} + +static inline int pinconf_map_to_setting(const struct pinctrl_map *map, + struct pinctrl_setting *setting) +{ + return 0; +} + +static inline void pinconf_free_setting(const struct pinctrl_setting *setting) +{ +} + +static inline int pinconf_apply_setting(const struct pinctrl_setting *setting) +{ + return 0; +} + +static inline int pinconf_set_config(struct pinctrl_dev *pctldev, unsigned pin, + unsigned long *configs, size_t nconfigs) +{ + return -ENOTSUPP; +} + +#endif + +#if defined(CONFIG_PINCONF) && defined(CONFIG_DEBUG_FS) + +void pinconf_show_map(struct seq_file *s, const struct pinctrl_map *map); +void pinconf_show_setting(struct seq_file *s, + const struct pinctrl_setting *setting); +void pinconf_init_device_debugfs(struct dentry *devroot, + struct pinctrl_dev *pctldev); + +#else + +static inline void pinconf_show_map(struct seq_file *s, + const struct pinctrl_map *map) +{ +} + +static inline void pinconf_show_setting(struct seq_file *s, + const struct pinctrl_setting *setting) +{ +} + +static inline void pinconf_init_device_debugfs(struct dentry *devroot, + struct pinctrl_dev *pctldev) +{ +} + +#endif + +/* + * The following functions are available if the driver uses the generic + * pin config. + */ + +#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS) + +void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, + struct seq_file *s, const char *gname, + unsigned pin); + +void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, + struct seq_file *s, unsigned long config); +#else + +static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev, + struct seq_file *s, + const char *gname, unsigned pin) +{ + return; +} + +static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev, + struct seq_file *s, + unsigned long config) +{ + return; +} +#endif + +#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF) +int pinconf_generic_parse_dt_config(struct device_node *np, + struct pinctrl_dev *pctldev, + unsigned long **configs, + unsigned int *nconfigs); +#endif |