diff options
| author | Michael Hanselmann <linux-kernel@hansmi.ch> | 2006-07-10 15:44:45 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-11 00:24:20 +0400 |
| commit | e01af0384f54023b4548b7742952da2ffcafd4cd (patch) | |
| tree | 6ffd14821a0a1fedbf4430c5df7fa60822f4809f /drivers/macintosh | |
| parent | 58d383a6222d66be9483598c51bae34e7d3c2c37 (diff) | |
| download | linux-e01af0384f54023b4548b7742952da2ffcafd4cd.tar.xz | |
[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 'drivers/macintosh')
| -rw-r--r-- | drivers/macintosh/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig index 54f3f6b94efc..f5fe7fb4b3ad 100644 --- a/drivers/macintosh/Kconfig +++ b/drivers/macintosh/Kconfig @@ -113,7 +113,10 @@ config PMAC_MEDIABAY config PMAC_BACKLIGHT bool "Backlight control for LCD screens" - depends on ADB_PMU && (BROKEN || !PPC64) + depends on ADB_PMU && FB = y && (BROKEN || !PPC64) + select FB_BACKLIGHT + select BACKLIGHT_CLASS_DEVICE + select BACKLIGHT_LCD_SUPPORT help Say Y here to enable Macintosh specific extensions of the generic backlight code. With this enabled, the brightness keys on older |