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| author | Jani Nikula <jani.nikula@intel.com> | 2013-12-14 23:38:29 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-12-16 10:02:48 +0100 |
| commit | f00076d2fd3fe25b2e8c83921818914dee37ffef (patch) | |
| tree | 01c9668b05ec8e9fb3b52690ecb1dc8a66c2a4e0 /drivers/gpu/drm/i915/intel_bios.h | |
| parent | drm/i915: add runtime PM support on Haswell (diff) | |
| download | linux-f00076d2fd3fe25b2e8c83921818914dee37ffef.tar.xz linux-f00076d2fd3fe25b2e8c83921818914dee37ffef.zip | |
drm/i915: parse backlight modulation frequency from the BIOS VBT
We don't actually do anything with the information yet, but parse and
log what's in the VBT.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.h')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 81ed58cb7b31..282de5e9f39d 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -373,6 +373,22 @@ struct bdb_lvds_lfp_data { struct bdb_lvds_lfp_data_entry data[16]; } __packed; +struct bdb_lfp_backlight_data_entry { + u8 type:2; + u8 active_low_pwm:1; + u8 obsolete1:5; + u16 pwm_freq_hz; + u8 min_brightness; + u8 obsolete2; + u8 obsolete3; +} __packed; + +struct bdb_lfp_backlight_data { + u8 entry_size; + struct bdb_lfp_backlight_data_entry data[16]; + u8 level[16]; +} __packed; + struct aimdb_header { char signature[16]; char oem_device[20]; |