drm/i915/dsi: don't pass arbitrary data to sideband
authorJani Nikula <jani.nikula@intel.com>
Thu, 4 Feb 2016 10:50:50 +0000 (12:50 +0200)
committerJani Nikula <jani.nikula@intel.com>
Mon, 8 Feb 2016 09:35:59 +0000 (11:35 +0200)
commit26f6f2d301c1fb46acb1138ee155125815239b0d
treec99164b4e25a27cdecf664230cda79ff1c2963ec
parent4db3a2448ec8902310acb78de39b6227a9a56ac8
drm/i915/dsi: don't pass arbitrary data to sideband

Since sequence block v2 the second byte contains flags other than just
pull up/down. Don't pass arbitrary data to the sideband interface.

The rest may or may not work for sequence block v2, but there should be
no harm done.

Cc: stable@vger.kernel.org
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/ebe3c2eee623afc4b3a134533b01f8d591d13f32.1454582914.git.jani.nikula@intel.com
(cherry picked from commit 4e1c63e3761b84ec7d87c75b58bbc8bcf18e98ee)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c