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, 19 insertions, 4 deletions

diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h
index 1500ae88f87c..6fc47003e95d 100644
--- a/drivers/pinctrl/pinmux.h
+++ b/drivers/pinctrl/pinmux.h
@@ -14,6 +14,8 @@
 
 int pinmux_check_ops(struct pinctrl_dev *pctldev);
 
+int pinmux_validate_map(struct pinctrl_map const *map, int i);
+
 int pinmux_request_gpio(struct pinctrl_dev *pctldev,
                         struct pinctrl_gpio_range *range,
                         unsigned pin, unsigned gpio);
@@ -29,7 +31,9 @@ void pinmux_free_setting(struct pinctrl_setting const *setting);
 int pinmux_enable_setting(struct pinctrl_setting const *setting);
 void pinmux_disable_setting(struct pinctrl_setting const *setting);
 
-void pinmux_dbg_show(struct seq_file *s, struct pinctrl_setting const *setting);
+void pinmux_show_map(struct seq_file *s, struct pinctrl_map const *map);
+void pinmux_show_setting(struct seq_file *s,
+                         struct pinctrl_setting const *setting);
 void pinmux_init_device_debugfs(struct dentry *devroot,
                                 struct pinctrl_dev *pctldev);
 
@@ -40,6 +44,11 @@ static inline int pinmux_check_ops(struct pinctrl_dev *pctldev)
         return 0;
 }
 
+static inline int pinmux_validate_map(struct pinctrl_map const *map, int i)
+{
+        return 0;
+}
+
 static inline int pinmux_request_gpio(struct pinctrl_dev *pctldev,
                         struct pinctrl_gpio_range *range,
                         unsigned pin, unsigned gpio)
@@ -80,12 +89,18 @@ static inline void pinmux_disable_setting(
 {
 }
 
-static inline void pinmux_init_device_debugfs(struct dentry *devroot,
-                                              struct pinctrl_dev *pctldev)
+static inline void pinmux_show_map(struct seq_file *s,
+                                   struct pinctrl_map const *map)
+{
+}
+
+static inline void pinmux_show_setting(struct seq_file *s,
+                                       struct pinctrl_setting const *setting)
 {
 }
 
-static inline void pinmux_dbg_show(struct seq_file *s, struct pinctrl *p)
+static inline void pinmux_init_device_debugfs(struct dentry *devroot,
+                                              struct pinctrl_dev *pctldev)
 {
 }