diff options
Diffstat (limited to 'include/linux/pwm.h')
| -rw-r--r-- | include/linux/pwm.h | 30 |
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 { |