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>

diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index e0814d2..772216f 100644 (file)
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -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()

diff --git a/Documentation/driver-api/pwm.rst b/Documentation/driver-api/pwm.rst
index 750734a..ccb06e4 100644 (file)
--- a/Documentation/driver-api/pwm.rst
+++ b/Documentation/driver-api/pwm.rst
@@ -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::
 

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index e823a4e..4a173a0 100644 (file)
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -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)
 {

diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 892ece4..a0b7e43 100644 (file)
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -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)