Commit c333b936 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Thierry Reding
Browse files

pwm: core: Remove unused devm_pwm_put() 



There are no users and seems no will come of the devm_pwm_put().
Remove the function.

While at it, slightly update documentation.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent e625fb70

Documentation/driver-api/driver-model/devres.rst

+2 −1
Original line number Diff line number Diff line
@@ -401,7 +401,8 @@ POWER 


PWM

  devm_pwm_get()

  devm_pwm_put()

  devm_of_pwm_get()

  devm_fwnode_pwm_get()



REGULATOR

  devm_regulator_bulk_get()

Documentation/driver-api/pwm.rst

+2 −1
Original line number Diff line number Diff line
@@ -40,7 +40,8 @@ after usage with pwm_free(). 


New users should use the pwm_get() function and pass to it the consumer

device or a consumer name. pwm_put() is used to free the PWM device. Managed

variants of these functions, devm_pwm_get() and devm_pwm_put(), also exist.

variants of the getter, devm_pwm_get(), devm_of_pwm_get(),

devm_fwnode_pwm_get(), also exist.



After being requested, a PWM has to be configured using::

drivers/pwm/core.c

+0 −25
Original line number Diff line number Diff line
@@ -1172,31 +1172,6 @@ struct pwm_device *devm_fwnode_pwm_get(struct device *dev, 
}

EXPORT_SYMBOL_GPL(devm_fwnode_pwm_get);



static int devm_pwm_match(struct device *dev, void *res, void *data)

{

	struct pwm_device **p = res;



	if (WARN_ON(!p || !*p))

		return 0;



	return *p == data;

}



/**

 * devm_pwm_put() - resource managed pwm_put()

 * @dev: device for PWM consumer

 * @pwm: PWM device

 *

 * Release a PWM previously allocated using devm_pwm_get(). Calling this

 * function is usually not needed because devm-allocated resources are

 * automatically released on driver detach.

 */

void devm_pwm_put(struct device *dev, struct pwm_device *pwm)

{

	WARN_ON(devres_release(dev, devm_pwm_release, devm_pwm_match, pwm));

}

EXPORT_SYMBOL_GPL(devm_pwm_put);



#ifdef CONFIG_DEBUG_FS

static void pwm_dbg_show(struct pwm_chip *chip, struct seq_file *s)

{

include/linux/pwm.h

+0 −5
Original line number Diff line number Diff line
@@ -426,7 +426,6 @@ struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np, 
struct pwm_device *devm_fwnode_pwm_get(struct device *dev,

				       struct fwnode_handle *fwnode,

				       const char *con_id);

void devm_pwm_put(struct device *dev, struct pwm_device *pwm);

#else

static inline struct pwm_device *pwm_request(int pwm_id, const char *label)

{
@@ -533,10 +532,6 @@ devm_fwnode_pwm_get(struct device *dev, struct fwnode_handle *fwnode, 
{

	return ERR_PTR(-ENODEV);

}



static inline void devm_pwm_put(struct device *dev, struct pwm_device *pwm)

{

}

#endif



static inline void pwm_apply_args(struct pwm_device *pwm)