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Code Issues 2 Packages Projects Releases Wiki Activity

backlight: Clean up pmac_backlight handling

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Move the setting/unsetting of pmac_backlight into the
backlight core instead of doing it in each driver.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
This commit is contained in:
Richard Purdie
2007-02-10 15:04:08 +00:00
parent e0e34ef7f0
commit 321709c599
8 changed files with 34 additions and 101 deletions
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17
drivers/video/backlight/backlight.c
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@@ -14,6 +14,9 @@
#include <linux/err.h>
#include <linux/fb.h>
#ifdef CONFIG_PMAC_BACKLIGHT
#include <asm/backlight.h>
#endif
#if defined(CONFIG_FB) || (defined(CONFIG_FB_MODULE) && \
defined(CONFIG_BACKLIGHT_CLASS_DEVICE_MODULE))
@@ -262,6 +265,13 @@ struct backlight_device *backlight_device_register(const char *name,
}
}
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (!pmac_backlight)
pmac_backlight = new_bd;
mutex_unlock(&pmac_backlight_mutex);
#endif
return new_bd;
}
EXPORT_SYMBOL(backlight_device_register);
@@ -281,6 +291,13 @@ void backlight_device_unregister(struct backlight_device *bd)
pr_debug("backlight_device_unregister: name=%s\n", bd->class_dev.class_id);
#ifdef CONFIG_PMAC_BACKLIGHT
mutex_lock(&pmac_backlight_mutex);
if (pmac_backlight == bd)
pmac_backlight = NULL;
mutex_unlock(&pmac_backlight_mutex);
#endif
for (i = 0; i < ARRAY_SIZE(bl_class_device_attributes); i++)
class_device_remove_file(&bd->class_dev,
&bl_class_device_attributes[i]);