mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-28 04:17:47 +00:00
4b755999d6
This patch fixes several problems: - The legacy backlight value might be set at interrupt time. Introduced a worker to prevent it from directly calling the backlight code. - via-pmu allows the backlight to be grabbed, in which case we need to prevent other kernel code from changing the brightness. - Don't send PMU requests in via-pmu-backlight when the machine is about to sleep or waking up. - More Kconfig fixes. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
|
|
* Routines for handling backlight control on PowerBooks
|
|
*
|
|
* For now, implementation resides in
|
|
* arch/powerpc/platforms/powermac/backlight.c
|
|
*
|
|
*/
|
|
#ifndef __ASM_POWERPC_BACKLIGHT_H
|
|
#define __ASM_POWERPC_BACKLIGHT_H
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/fb.h>
|
|
#include <linux/mutex.h>
|
|
|
|
/* For locking instructions, see the implementation file */
|
|
extern struct backlight_device *pmac_backlight;
|
|
extern struct mutex pmac_backlight_mutex;
|
|
|
|
extern int pmac_backlight_curve_lookup(struct fb_info *info, int value);
|
|
|
|
extern int pmac_has_backlight_type(const char *type);
|
|
|
|
extern void pmac_backlight_key(int direction);
|
|
static inline void pmac_backlight_key_up(void)
|
|
{
|
|
pmac_backlight_key(0);
|
|
}
|
|
static inline void pmac_backlight_key_down(void)
|
|
{
|
|
pmac_backlight_key(1);
|
|
}
|
|
|
|
extern void pmac_backlight_set_legacy_brightness_pmu(int brightness);
|
|
extern int pmac_backlight_set_legacy_brightness(int brightness);
|
|
extern int pmac_backlight_get_legacy_brightness(void);
|
|
|
|
extern void pmac_backlight_enable(void);
|
|
extern void pmac_backlight_disable(void);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif
|