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pinctrl: enhance mapping table to support pin config operations

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The pinctrl mapping table can now contain entries to:
* Set the mux function of a pin group
* Apply a set of pin config options to a pin or a group

This allows pinctrl_select_state() to apply pin configs settings as well
as mux settings.

v3: Fix find_pinctrl() to iterate over the correct list.
   s/_MUX_CONFIGS_/_CONFIGS_/ in mapping table macros.
   Fix documentation to use correct mapping table macro.
v2: Added numerous extra PIN_MAP_*() special-case macros.
   Fixed kerneldoc typo. Delete pinctrl_get_pin_id() and
   replace it with pin_get_from_name(). Various minor fixes.
   Updates due to rebase.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Stephen Warren
2012-03-02 13:05:48 -07:00
committed by Linus Walleij
parent 6e5e959dde
commit 1e2082b520
9 changed files with 612 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/pinctrl/pinconf.h
+40
View File
@@ -15,6 +15,16 @@
int pinconf_check_ops(struct pinctrl_dev *pctldev);
int pinconf_validate_map(struct pinctrl_map const *map, int i);
int pinconf_map_to_setting(struct pinctrl_map const *map,
struct pinctrl_setting *setting);
void pinconf_free_setting(struct pinctrl_setting const *setting);
int pinconf_apply_setting(struct pinctrl_setting const *setting);
void pinconf_show_map(struct seq_file *s, struct pinctrl_map const *map);
void pinconf_show_setting(struct seq_file *s,
struct pinctrl_setting const *setting);
void pinconf_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev);
@@ -25,6 +35,36 @@ static inline int pinconf_check_ops(struct pinctrl_dev *pctldev)
return 0;
}
static inline int pinconf_validate_map(struct pinctrl_map const *map, int i)
{
return 0;
}
static inline int pinconf_map_to_setting(struct pinctrl_map const *map,
struct pinctrl_setting *setting)
{
return 0;
}
static inline void pinconf_free_setting(struct pinctrl_setting const *setting)
{
}
static inline int pinconf_apply_setting(struct pinctrl_setting const *setting)
{
return 0;
}
static inline void pinconf_show_map(struct seq_file *s,
struct pinctrl_map const *map)
{
}
static inline void pinconf_show_setting(struct seq_file *s,
struct pinctrl_setting const *setting)
{
}
static inline void pinconf_init_device_debugfs(struct dentry *devroot,
struct pinctrl_dev *pctldev)
{