linux_dsm_epyc7002/include/linux/apple_bl.h
Seth Forshee 83e72dd97a 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>
2012-03-22 09:31:55 -04:00

27 lines
411 B
C

/*
* apple_bl exported symbols
*/
#ifndef _LINUX_APPLE_BL_H
#define _LINUX_APPLE_BL_H
#ifdef CONFIG_BACKLIGHT_APPLE
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 */