summaryrefslogtreecommitdiff
path: root/include/linux/pwm.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/pwm.h')
-rw-r--r--include/linux/pwm.h30
1 files changed, 28 insertions, 2 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 6d661f32e0e4..a4df2042b79c 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -146,6 +146,8 @@ struct pwm_ops {
* @base: number of first PWM controlled by this chip
* @npwm: number of PWMs controlled by this chip
* @pwms: array of PWM devices allocated by the framework
+ * @can_sleep: must be true if the .config(), .enable() or .disable()
+ * operations may sleep
*/
struct pwm_chip {
struct device *dev;
@@ -159,6 +161,7 @@ struct pwm_chip {
struct pwm_device * (*of_xlate)(struct pwm_chip *pc,
const struct of_phandle_args *args);
unsigned int of_pwm_n_cells;
+ bool can_sleep;
};
#if IS_ENABLED(CONFIG_PWM)
@@ -174,11 +177,16 @@ struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *pc,
const struct of_phandle_args *args);
-struct pwm_device *pwm_get(struct device *dev, const char *consumer);
+struct pwm_device *pwm_get(struct device *dev, const char *con_id);
+struct pwm_device *of_pwm_get(struct device_node *np, const char *con_id);
void pwm_put(struct pwm_device *pwm);
-struct pwm_device *devm_pwm_get(struct device *dev, const char *consumer);
+struct pwm_device *devm_pwm_get(struct device *dev, const char *con_id);
+struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np,
+ const char *con_id);
void devm_pwm_put(struct device *dev, struct pwm_device *pwm);
+
+bool pwm_can_sleep(struct pwm_device *pwm);
#else
static inline int pwm_set_chip_data(struct pwm_device *pwm, void *data)
{
@@ -213,6 +221,12 @@ static inline struct pwm_device *pwm_get(struct device *dev,
return ERR_PTR(-ENODEV);
}
+static inline struct pwm_device *of_pwm_get(struct device_node *np,
+ const char *con_id)
+{
+ return ERR_PTR(-ENODEV);
+}
+
static inline void pwm_put(struct pwm_device *pwm)
{
}
@@ -223,9 +237,21 @@ static inline struct pwm_device *devm_pwm_get(struct device *dev,
return ERR_PTR(-ENODEV);
}
+static inline struct pwm_device *devm_of_pwm_get(struct device *dev,
+ struct device_node *np,
+ const char *con_id)
+{
+ return ERR_PTR(-ENODEV);
+}
+
static inline void devm_pwm_put(struct device *dev, struct pwm_device *pwm)
{
}
+
+static inline bool pwm_can_sleep(struct pwm_device *pwm)
+{
+ return false;
+}
#endif
struct pwm_lookup {