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Commit c90b1551 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Jani Nikula
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drm/i915: Pick the backlight controller based on VBT on ICP+

Use the second backlight controller on ICP+ if the VBT asks
us to do so.

On pre-MTP we also check the chicken bit to make sure the
pins have been correctly muxed by the firmware.

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8016


Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230207064337.18697-4-ville.syrjala@linux.intel.com


Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
(cherry picked from commit b3377154)
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 14e591a1
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