include/linux/apple_bl.h

/*
 * apple_bl exported symbols
 */

#ifndef _LINUX_APPLE_BL_H
#define _LINUX_APPLE_BL_H

#if defined(CONFIG_BACKLIGHT_APPLE) || defined(CONFIG_BACKLIGHT_APPLE_MODULE)

extern int apple_bl_register(void);
extern void apple_bl_unregister(void);

#else /* !CONFIG_BACKLIGHT_APPLE */

static inline int apple_bl_register(void)
{
	return 0;
}

static inline void apple_bl_unregister(void)
{
}

#endif /* !CONFIG_BACKLIGHT_APPLE */

#endif /* _LINUX_APPLE_BL_H */
apple_bl: Add register/unregister functions Add functions to allow other modules to enable or disable apple_bl. This will be used by the gmux driver to disable apple_bl when the gmux is present, as it is a better and more reliable option for brightness control. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> 2012-03-16 14:41:21 -05:00			`/*`
			`* apple_bl exported symbols`
			`*/`

			`#ifndef _LINUX_APPLE_BL_H`
			`#define _LINUX_APPLE_BL_H`

drivers/video/backlight/apple_bl.c: include header for exported symbol prototypes Include the header to pickup the exported symbol prototype. Quiets the sparse warning: warning: symbol 'apple_bl_register' was not declared. Should it be static? warning: symbol 'apple_bl_unregister' was not declared. Should it be static? [akpm@linux-foundation.org: fix resulting build error] Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2012-05-29 15:07:14 -07:00			`#if defined(CONFIG_BACKLIGHT_APPLE) \|\| defined(CONFIG_BACKLIGHT_APPLE_MODULE)`
apple_bl: Add register/unregister functions Add functions to allow other modules to enable or disable apple_bl. This will be used by the gmux driver to disable apple_bl when the gmux is present, as it is a better and more reliable option for brightness control. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Matthew Garrett <mjg@redhat.com> 2012-03-16 14:41:21 -05:00
			`extern int apple_bl_register(void);`
			`extern void apple_bl_unregister(void);`

			`#else /* !CONFIG_BACKLIGHT_APPLE */`

			`static inline int apple_bl_register(void)`
			`{`
			`return 0;`
			`}`

			`static inline void apple_bl_unregister(void)`
			`{`
			`}`

			`#endif /* !CONFIG_BACKLIGHT_APPLE */`

			`#endif /* _LINUX_APPLE_BL_H */`