pinctrl: add sleep mode management for hogs
This fix allows handling sleep mode for hogged
pins in pinctrl. It provides functions to set pins
to sleep/default configurations according to their
current state.
Signed-off-by: Julien Delacou <julien.delacou@stericsson.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 12f5694..232a9f6 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -30,6 +30,8 @@
* @driver_data: driver data for drivers registering to the pin controller
* subsystem
* @p: result of pinctrl_get() for this device
+ * @hog_default: default state for pins hogged by this device
+ * @hog_sleep: sleep state for pins hogged by this device
* @device_root: debugfs root for this device
*/
struct pinctrl_dev {
@@ -41,6 +43,8 @@
struct module *owner;
void *driver_data;
struct pinctrl *p;
+ struct pinctrl_state *hog_default;
+ struct pinctrl_state *hog_sleep;
#ifdef CONFIG_DEBUG_FS
struct dentry *device_root;
#endif
@@ -164,5 +168,8 @@
bool dup, bool locked);
void pinctrl_unregister_map(struct pinctrl_map const *map);
+extern int pinctrl_force_sleep(struct pinctrl_dev *pctldev);
+extern int pinctrl_force_default(struct pinctrl_dev *pctldev);
+
extern struct mutex pinctrl_mutex;
extern struct list_head pinctrldev_list;