diff options
Diffstat (limited to 'include/linux/pwm.h')
| -rw-r--r-- | include/linux/pwm.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/pwm.h b/include/linux/pwm.h index 07af6910b..4a6568dfd 100644 --- a/include/linux/pwm.h +++ b/include/linux/pwm.h @@ -272,6 +272,7 @@ struct pwm_ops { * @npwm: number of PWMs controlled by this chip * @of_xlate: request a PWM device given a device tree PWM specifier * @atomic: can the driver's ->apply() be called in atomic context + * @driver_data: Private pointer for driver specific info * @pwms: array of PWM devices allocated by the framework */ struct pwm_chip { @@ -286,6 +287,7 @@ struct pwm_chip { bool atomic; /* only used internally by the PWM framework */ + void *driver_data; struct pwm_device *pwms; }; @@ -294,6 +296,24 @@ static inline struct device *pwmchip_parent(const struct pwm_chip *chip) return chip->dev; } +static inline void *pwmchip_get_drvdata(struct pwm_chip *chip) +{ + /* + * After pwm_chip got a dedicated struct device, this can be replaced by + * dev_get_drvdata(&chip->dev); + */ + return chip->driver_data; +} + +static inline void pwmchip_set_drvdata(struct pwm_chip *chip, void *data) +{ + /* + * After pwm_chip got a dedicated struct device, this can be replaced by + * dev_set_drvdata(&chip->dev, data); + */ + chip->driver_data = data; +} + #if IS_ENABLED(CONFIG_PWM) /* PWM user APIs */ int pwm_apply_might_sleep(struct pwm_device *pwm, const struct pwm_state *state); @@ -383,6 +403,10 @@ static inline bool pwm_might_sleep(struct pwm_device *pwm) int pwm_capture(struct pwm_device *pwm, struct pwm_capture *result, unsigned long timeout); +void pwmchip_put(struct pwm_chip *chip); +struct pwm_chip *pwmchip_alloc(struct device *parent, unsigned int npwm, size_t sizeof_priv); +struct pwm_chip *devm_pwmchip_alloc(struct device *parent, unsigned int npwm, size_t sizeof_priv); + int __pwmchip_add(struct pwm_chip *chip, struct module *owner); #define pwmchip_add(chip) __pwmchip_add(chip, THIS_MODULE) void pwmchip_remove(struct pwm_chip *chip); @@ -455,6 +479,24 @@ static inline int pwm_capture(struct pwm_device *pwm, return -EINVAL; } +static inline void pwmchip_put(struct pwm_chip *chip) +{ +} + +static inline struct pwm_chip *pwmchip_alloc(struct device *parent, + unsigned int npwm, + size_t sizeof_priv) +{ + return ERR_PTR(-EINVAL); +} + +static inline struct pwm_chip *devm_pwmchip_alloc(struct device *parent, + unsigned int npwm, + size_t sizeof_priv) +{ + return pwmchip_alloc(parent, npwm, sizeof_priv); +} + static inline int pwmchip_add(struct pwm_chip *chip) { return -EINVAL; |