pinctrl: enhance mapping table to support pin config operations

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>

1 files changed, 40 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h
index 1d6ea9de75fc..0ded227661a5 100644
--- a/drivers/pinctrl/pinconf.h
+++ b/drivers/pinctrl/pinconf.h
@@ -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)
 {