diff options
| author | Aaron Lu <aaron.lu@intel.com> | 2016-05-21 15:30:46 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-05-30 13:53:09 +0200 |
| commit | 9f9cd7ee2c05881f151e5ee4889e667a031dd8d9 (patch) | |
| tree | 55c2c3702f9675afe8756c2bb9baa5bf7e127f42 /include/acpi/video.h | |
| parent | e4f35c1339f0cfcf38d3f63dd6fea2b070399263 (diff) | |
| download | linux-stable-9f9cd7ee2c05881f151e5ee4889e667a031dd8d9.tar.gz linux-stable-9f9cd7ee2c05881f151e5ee4889e667a031dd8d9.tar.bz2 linux-stable-9f9cd7ee2c05881f151e5ee4889e667a031dd8d9.zip | |
ACPI / Thermal / video: fix max_level incorrect value
commit 059500940def (ACPI/video: export acpi_video_get_levels)
mistakenly dropped the correct value of max_level and that caused the
set_level function following failed and the acpi_video backlight interface
didn't get created. Fix this by passing back the correct max_level value.
While at it, also fix the param used in acpi_video_device_lcd_query_levels
where acpi_handle is expected but acpi_video_device is passed.
Fixes: 059500940def (ACPI/video: export acpi_video_get_levels)
Reported-and-tested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/video.h')
| -rw-r--r-- | include/acpi/video.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/acpi/video.h b/include/acpi/video.h index 70a41f742037..5731ccb42585 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -51,7 +51,8 @@ extern void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type); */ extern bool acpi_video_handles_brightness_key_presses(void); extern int acpi_video_get_levels(struct acpi_device *device, - struct acpi_video_device_brightness **dev_br); + struct acpi_video_device_brightness **dev_br, + int *pmax_level); #else static inline int acpi_video_register(void) { return 0; } static inline void acpi_video_unregister(void) { return; } @@ -72,7 +73,8 @@ static inline bool acpi_video_handles_brightness_key_presses(void) return false; } static inline int acpi_video_get_levels(struct acpi_device *device, - struct acpi_video_device_brightness **dev_br) + struct acpi_video_device_brightness **dev_br, + int *pmax_level) { return -ENODEV; } |