tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[POWERPC] Fix for via-pmu based backlight control

Browse Source 
This fixes a few issues with via-pmu based backlight control.

First, it fixes a sign problem with the setup of the backlight
curve since the `range' value there -can- (and will) go negative.

Then, it reworks the interaction between this and the via-pmu sleep
code to properly restore backlight on wakeup from sleep.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Benjamin Herrenschmidt
2007-12-20 15:00:21 +11:00
committed by Paul Mackerras
parent 7ac5dde99e
commit 0094f2cdcf
3 changed files with 42 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/linux/pmu.h
+2
View File
@@ -159,6 +159,8 @@ extern void pmu_unlock(void);
extern int pmu_present(void);
extern int pmu_get_model(void);
extern void pmu_backlight_set_sleep(int sleep);
#define PMU_MAX_BATTERIES 2
/* values for pmu_power_flags */