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[PATCH] powermac: More powermac backlight fixes

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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 <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: "Antonino A. Daplas" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Michael Hanselmann 2006-07-30 03:04:19 -07:00 • committed by Linus Torvalds
commit 4b755999d6
10 changed files with 147 additions and 76 deletions
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4
include/asm-powerpc/backlight.h
View file

@ -30,8 +30,12 @@ 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

3
include/linux/pmu.h
View file

@ -231,7 +231,6 @@ extern struct pmu_battery_info pmu_batteries[PMU_MAX_BATTERIES];
extern unsigned int pmu_power_flags;
/* Backlight */
extern int disable_kernel_backlight;
extern void pmu_backlight_init(struct device_node*);
extern void pmu_backlight_init(void);
#endif /* __KERNEL__ */