drm/i915: Warn if trying to poke a VLV backlight on invalid pipe

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VLV/CHV have backlight controls only on pipes A and B. Bail out
without touching registers that don't exist, and print a warning.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Ville Syrjälä 2014-11-07 11:15:59 +02:00 • committed by Daniel Vetter

parent 6a2c4232ec

commit 23ec0a8835

1 changed files with 12 additions and 0 deletions

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drivers/gpu/drm/i915/intel_panel.c

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