linux-kernel - [PATCH 3/3] pwm: Make pwm_request_from

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Date: Fri,  7 Jun 2024 10:44:17 +0200
From: "Uwe Kleine-König" <ukleinek@...libre.com>
To: Benson Leung <bleung@...omium.org>
Cc: Guenter Roeck <groeck@...omium.org>,
	linux-pwm@...r.kernel.org,
	chrome-platform@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] pwm: Make pwm_request_from_chip() private to the core

The last user of this function outside of core.c is gone, so it can be
made static.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
---
 drivers/pwm/core.c  |  8 +++-----
 include/linux/pwm.h | 12 ------------
 2 files changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 18574857641e..76969d5052af 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -394,9 +394,9 @@ static int pwm_device_request(struct pwm_device *pwm, const char *label)
  * chip. A negative error code is returned if the index is not valid for the
  * specified PWM chip or if the PWM device cannot be requested.
  */
-struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
-					 unsigned int index,
-					 const char *label)
+static struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
+						unsigned int index,
+						const char *label)
 {
 	struct pwm_device *pwm;
 	int err;
@@ -414,8 +414,6 @@ struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
 	mutex_unlock(&pwm_lock);
 	return pwm;
 }
-EXPORT_SYMBOL_GPL(pwm_request_from_chip);
-
 
 struct pwm_device *
 of_pwm_xlate_with_flags(struct pwm_chip *chip, const struct of_phandle_args *args)
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 60b92c2c75ef..3ac1a04acc0e 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -407,10 +407,6 @@ void pwmchip_remove(struct pwm_chip *chip);
 int __devm_pwmchip_add(struct device *dev, struct pwm_chip *chip, struct module *owner);
 #define devm_pwmchip_add(dev, chip) __devm_pwmchip_add(dev, chip, THIS_MODULE)
 
-struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
-					 unsigned int index,
-					 const char *label);
-
 struct pwm_device *of_pwm_xlate_with_flags(struct pwm_chip *chip,
 		const struct of_phandle_args *args);
 struct pwm_device *of_pwm_single_xlate(struct pwm_chip *chip,
@@ -505,14 +501,6 @@ static inline int devm_pwmchip_add(struct device *dev, struct pwm_chip *chip)
 	return -EINVAL;
 }
 
-static inline struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
-						       unsigned int index,
-						       const char *label)
-{
-	might_sleep();
-	return ERR_PTR(-ENODEV);
-}
-
 static inline struct pwm_device *pwm_get(struct device *dev,
 					 const char *consumer)
 {
-- 
2.43.0