diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2014-04-09 12:22:06 +0400 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2014-04-11 14:22:27 +0400 |
| commit | 39fbc9c8f6765959b55e0b127dd5c57df5a47d67 (patch) | |
| tree | 6369df006d91ad85b659f26a98f05b725584cca5 /drivers/gpu/drm/i915/intel_bios.h | |
| parent | 2ab1bc9df01dbc19b55b2271100db7407fa6bfdc (diff) | |
| download | linux-39fbc9c8f6765959b55e0b127dd5c57df5a47d67.tar.xz | |
drm/i915: check VBT for supported backlight type
The only supported types are none and PWM. Other values are obsolete or
reserved, don't add them.
Tested-by: Kamal Mostafa <kamal@canonical.com>
Tested-by: Martin <bugs@mrvanes.com>
Tested-by: jrg.otte@gmail.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 83b7629e4367..f27f7b282465 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -374,6 +374,9 @@ struct bdb_lvds_lfp_data { struct bdb_lvds_lfp_data_entry data[16]; } __packed; +#define BDB_BACKLIGHT_TYPE_NONE 0 +#define BDB_BACKLIGHT_TYPE_PWM 2 + struct bdb_lfp_backlight_data_entry { u8 type:2; u8 active_low_pwm:1; |