diff options
| author |   Jani Nikula <jani.nikula@intel.com> | 2014-06-17 15:47:05 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2014-06-23 16:08:20 +0300 |
| commit | 56c4b63aaf4c2cd91966b2a5e69e5367bea60bbe (patch) | |
| tree | 0d7ba56b729249f857d80a2d8c90992a8f0bce71 /drivers/gpu/drm/i915/intel_bios.c | |
| parent | drm/i915: cache hw power well enabled state (diff) | |
| download | linux-dev-56c4b63aaf4c2cd91966b2a5e69e5367bea60bbe.tar.xz linux-dev-56c4b63aaf4c2cd91966b2a5e69e5367bea60bbe.zip | |
drm/i915: default to having backlight if VBT not available
Apparently there are Apple laptops with magic smoke for a VBIOS, which
we fail to find and use. Default to having and setting up backlight in
this case.
This fixes a regression introduced by
commit c675949ec58ca50d5a3ae3c757892f1560f6e896
Author: Jani Nikula <jani.nikula@intel.com>
Date: Wed Apr 9 11:31:37 2014 +0300
drm/i915: do not setup backlight if not available according to VBT
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=77831
Reported-and-tested-by: Matteo Cypriani <mcy@lm7.fr>
Cc: stable@vger.kernel.org # 3.15+
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 1ee98f121a00..827498e081df 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -315,9 +315,6 @@ parse_lfp_backlight(struct drm_i915_private *dev_priv, struct bdb_header *bdb) const struct bdb_lfp_backlight_data *backlight_data; const struct bdb_lfp_backlight_data_entry *entry; - /* Err to enabling backlight if no backlight block. */ - dev_priv->vbt.backlight.present = true; - backlight_data = find_section(bdb, BDB_LVDS_BACKLIGHT); if (!backlight_data) return; @@ -1088,6 +1085,9 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC; + /* Default to having backlight */ + dev_priv->vbt.backlight.present = true; + /* LFP panel data */ dev_priv->vbt.lvds_dither = 1; dev_priv->vbt.lvds_vbt = 0; |