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ACPI / Thermal / video: fix max_level incorrect value

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commit 059500940d (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: 059500940d (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>
This commit is contained in:
Aaron Lu
2016-05-21 15:30:46 +08:00
committed by Rafael J. Wysocki
parent e4f35c1339
commit 9f9cd7ee2c
3 changed files with 11 additions and 6 deletions
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6
include/acpi/video.h
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@@ -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;
}