diff options
| author | Michael Hanselmann <linux-kernel@hansmi.ch> | 2006-07-10 04:44:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-10 13:24:20 -0700 |
| commit | e01af0384f54023b4548b7742952da2ffcafd4cd (patch) | |
| tree | 6ffd14821a0a1fedbf4430c5df7fa60822f4809f /include | |
| parent | 58d383a6222d66be9483598c51bae34e7d3c2c37 (diff) | |
[PATCH] powermac: Combined fixes for backlight code
This patch fixes several problems:
- pmac_backlight_key() is called under interrupt context, and therefore
can't use mutexes or semaphores, so defer the backlight level for
later, as it's not critical (original code by Aristeu S. Rozanski F.
<aris@valeta.org>).
- Add exports for functions that might be called from modules
- Fix Kconfig depdencies on PMAC_BACKLIGHT.
- Fix locking issues on calls from inside the driver (reported by
Aristeu S. Rozanski F., too)
- Fix wrong calculation of backlight values in some of the drivers
- Replace pmac_backlight_key_up/down by inline functions
[akpm@osdl.org: fix function prototypes]
Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Acked-by: Aristeu S. Rozanski F. <aris@valeta.org>
Acked-by: Rene Nussbaumer <linux-kernel@killerfox.forkbomb.ch>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/backlight.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-powerpc/backlight.h b/include/asm-powerpc/backlight.h index a5e9e656e33..58d4b6f8d82 100644 --- a/include/asm-powerpc/backlight.h +++ b/include/asm-powerpc/backlight.h @@ -16,13 +16,19 @@ extern struct backlight_device *pmac_backlight; extern struct mutex pmac_backlight_mutex; -extern void pmac_backlight_calc_curve(struct fb_info*); 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_up(void); -extern void pmac_backlight_key_down(void); +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 int pmac_backlight_set_legacy_brightness(int brightness); extern int pmac_backlight_get_legacy_brightness(void); |