From 285523bc17a84bd42f17e9cf3a9d1f2ba086037e Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Sun, 19 Jul 2020 10:07:43 +0200
Subject: backlight: backlight: Make of_find_backlight static
Git-commit: b6539a11e807c531e51ff7ad9a25c3a1b6ff7340
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

There are no external users of of_find_backlight, as they have all
changed to use the managed version. Make of_find_backlight static to
prevent new external users.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/video/backlight/backlight.c | 18 +-----------------
 include/linux/backlight.h           |  6 ------
 2 files changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index cba8505fef5a..537fe1b376ad 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -673,22 +673,7 @@ struct backlight_device *of_find_backlight_by_node(struct device_node *node)
 EXPORT_SYMBOL(of_find_backlight_by_node);
 #endif
 
-/**
- * of_find_backlight - Get backlight device
- * @dev: Device
- *
- * This function looks for a property named 'backlight' on the DT node
- * connected to @dev and looks up the backlight device.
- *
- * Call backlight_put() to drop the reference on the backlight device.
- *
- * Returns:
- * A pointer to the backlight device if found.
- * Error pointer -EPROBE_DEFER if the DT property is set, but no backlight
- * device is found.
- * NULL if there's no backlight property.
- */
-struct backlight_device *of_find_backlight(struct device *dev)
+static struct backlight_device *of_find_backlight(struct device *dev)
 {
 	struct backlight_device *bd = NULL;
 	struct device_node *np;
@@ -714,7 +699,6 @@ struct backlight_device *of_find_backlight(struct device *dev)
 
 	return bd;
 }
-EXPORT_SYMBOL(of_find_backlight);
 
 static void devm_backlight_release(void *data)
 {
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 56e4580d4f55..843cb02225da 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -220,14 +220,8 @@ of_find_backlight_by_node(struct device_node *node)
 #endif
 
 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
-struct backlight_device *of_find_backlight(struct device *dev);
 struct backlight_device *devm_of_find_backlight(struct device *dev);
 #else
-static inline struct backlight_device *of_find_backlight(struct device *dev)
-{
-	return NULL;
-}
-
 static inline struct backlight_device *
 devm_of_find_backlight(struct device *dev)
 {
-- 
2.29.2