diff options
author | Tony Lindgren <tony@atomide.com> | 2016-12-27 09:20:01 -0800 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2017-01-03 09:26:18 +0100 |
commit | a76edc89b100e4fefb2a5c00cd8cd557437659e7 (patch) | |
tree | 0131d6cad80d2ed78c97b485b0a2d9cf2a446877 /drivers/pinctrl/pinmux.h | |
parent | c033a718f615b6b3ddc83ce3e0a217c30bd09cb5 (diff) | |
download | linux-a76edc89b100e4fefb2a5c00cd8cd557437659e7.tar.bz2 |
pinctrl: core: Add generic pinctrl functions for managing groups
We can add generic helpers for function handling for cases where the pin
controller driver does not need to use static arrays.
Signed-off-by: Tony Lindgren <tony@atomide.com>
[Renamed the Kconfig item and moved things around]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinmux.h')
-rw-r--r-- | drivers/pinctrl/pinmux.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h index d1a98b1c9fce..248d8ea30e26 100644 --- a/drivers/pinctrl/pinmux.h +++ b/drivers/pinctrl/pinmux.h @@ -111,3 +111,59 @@ static inline void pinmux_init_device_debugfs(struct dentry *devroot, } #endif + +#ifdef CONFIG_GENERIC_PINMUX_FUNCTIONS + +/** + * struct function_desc - generic function descriptor + * @name: name of the function + * @group_names: array of pin group names + * @num_group_names: number of pin group names + * @data: pin controller driver specific data + */ +struct function_desc { + const char *name; + const char **group_names; + int num_group_names; + void *data; +}; + +int pinmux_generic_get_function_count(struct pinctrl_dev *pctldev); + +const char * +pinmux_generic_get_function_name(struct pinctrl_dev *pctldev, + unsigned int selector); + +int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev, + unsigned int selector, + const char * const **groups, + unsigned * const num_groups); + +struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev, + unsigned int selector); + +int pinmux_generic_add_function(struct pinctrl_dev *pctldev, + const char *name, + const char **groups, + unsigned const num_groups, + void *data); + +int pinmux_generic_remove_function(struct pinctrl_dev *pctldev, + unsigned int selector); + +static inline int +pinmux_generic_remove_last_function(struct pinctrl_dev *pctldev) +{ + return pinmux_generic_remove_function(pctldev, + pctldev->num_functions - 1); +} + +void pinmux_generic_free_functions(struct pinctrl_dev *pctldev); + +#else + +static inline void pinmux_generic_free_functions(struct pinctrl_dev *pctldev) +{ +} + +#endif /* CONFIG_GENERIC_PINMUX_FUNCTIONS */ |