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Code Issues Releases Wiki Activity

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: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Andy Shevchenko 2021-06-07 15:24:57 +03:00 committed by Thierry Reding
parent e625fb70a6
commit c333b936c1
4 changed files with 4 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/driver-api/driver-model/devres.rst
View File

@ -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()

3
Documentation/driver-api/pwm.rst
View File

@ -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::

25
drivers/pwm/core.c
View File

@ -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)
{

5
include/linux/pwm.h
View File

@ -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)