1 files changed, 3 insertions, 68 deletions

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 474725714a05..3dacceaef4a9 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -28,17 +28,11 @@
 static DEFINE_MUTEX(pwm_lookup_lock);
 static LIST_HEAD(pwm_lookup_list);
 
-/* protects access to pwm_chips, allocated_pwms, and pwm_tree */
+/* protects access to pwm_chips and allocated_pwms */
 static DEFINE_MUTEX(pwm_lock);
 
 static LIST_HEAD(pwm_chips);
 static DECLARE_BITMAP(allocated_pwms, MAX_PWMS);
-static RADIX_TREE(pwm_tree, GFP_KERNEL);
-
-static struct pwm_device *pwm_to_device(unsigned int pwm)
-{
-	return radix_tree_lookup(&pwm_tree, pwm);
-}
 
 /* Called with pwm_lock held */
 static int alloc_pwms(unsigned int count)
@@ -59,14 +53,6 @@ static int alloc_pwms(unsigned int count)
 /* Called with pwm_lock held */
 static void free_pwms(struct pwm_chip *chip)
 {
-	unsigned int i;
-
-	for (i = 0; i < chip->npwm; i++) {
-		struct pwm_device *pwm = &chip->pwms[i];
-
-		radix_tree_delete(&pwm_tree, pwm->pwm);
-	}
-
 	bitmap_clear(allocated_pwms, chip->base, chip->npwm);
 
 	kfree(chip->pwms);
@@ -307,8 +293,6 @@ int pwmchip_add(struct pwm_chip *chip)
 		pwm->chip = chip;
 		pwm->pwm = chip->base + i;
 		pwm->hwpwm = i;
-
-		radix_tree_insert(&pwm_tree, pwm->pwm, pwm);
 	}
 
 	list_add(&chip->list, &pwm_chips);
@@ -370,43 +354,6 @@ int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip)
 EXPORT_SYMBOL_GPL(devm_pwmchip_add);
 
 /**
- * pwm_request() - request a PWM device
- * @pwm: global PWM device index
- * @label: PWM device label
- *
- * This function is deprecated, use pwm_get() instead.
- *
- * Returns: A pointer to a PWM device or an ERR_PTR()-encoded error code on
- * failure.
- */
-struct pwm_device *pwm_request(int pwm, const char *label)
-{
-	struct pwm_device *dev;
-	int err;
-
-	if (pwm < 0 || pwm >= MAX_PWMS)
-		return ERR_PTR(-EINVAL);
-
-	mutex_lock(&pwm_lock);
-
-	dev = pwm_to_device(pwm);
-	if (!dev) {
-		dev = ERR_PTR(-EPROBE_DEFER);
-		goto out;
-	}
-
-	err = pwm_device_request(dev, label);
-	if (err < 0)
-		dev = ERR_PTR(err);
-
-out:
-	mutex_unlock(&pwm_lock);
-
-	return dev;
-}
-EXPORT_SYMBOL_GPL(pwm_request);
-
-/**
  * pwm_request_from_chip() - request a PWM device relative to a PWM chip
  * @chip: PWM chip
  * @index: per-chip index of the PWM to request
@@ -438,18 +385,6 @@ struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
 }
 EXPORT_SYMBOL_GPL(pwm_request_from_chip);
 
-/**
- * pwm_free() - free a PWM device
- * @pwm: PWM device
- *
- * This function is deprecated, use pwm_put() instead.
- */
-void pwm_free(struct pwm_device *pwm)
-{
-	pwm_put(pwm);
-}
-EXPORT_SYMBOL_GPL(pwm_free);
-
 static void pwm_apply_state_debug(struct pwm_device *pwm,
 				  const struct pwm_state *state)
 {
@@ -790,7 +725,7 @@ static struct pwm_device *of_pwm_get(struct device *dev, struct device_node *np,
 	dl = pwm_device_link_add(dev, pwm);
 	if (IS_ERR(dl)) {
 		/* of_xlate ended up calling pwm_request_from_chip() */
-		pwm_free(pwm);
+		pwm_put(pwm);
 		pwm = ERR_CAST(dl);
 		goto put;
 	}
@@ -1014,7 +949,7 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
 
 	dl = pwm_device_link_add(dev, pwm);
 	if (IS_ERR(dl)) {
-		pwm_free(pwm);
+		pwm_put(pwm);
 		return ERR_CAST(dl);
 	}