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authorJani Nikula <jani.nikula@intel.com>2012-08-13 13:22:35 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2012-08-17 09:21:36 +0200
commitf1a2f5b7c5f0941d23eef0a095c0b99bf8d051e6 (patch)
tree6826689fea622320d9ee48e01bbd8f1b0fe13c2b /drivers/eisa/virtual_root.c
parent4eab81366465aedcfd26de960c595bc03599c09f (diff)
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drm/i915: fall back to bit-banging if GMBUS fails in CRT EDID reads
GMBUS was enabled over bit-banging as the default in commits: commit c3dfefa0a6d235bd465309e12f4c56ea16e71111 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Feb 14 22:37:25 2012 +0100 drm/i915: reenable gmbus on gen3+ again and commit 0fb3f969c8683505fb7323c06bf8a999a5a45a15 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Mar 2 19:38:30 2012 +0100 drm/i915: enable gmbus on gen2 Unfortunately, GMBUS seems to fail on some CRT displays. Add a bit-banging fallback to CRT EDID reads. LKML-Reference: <201207251020.47637.maciej.rutecki@gmail.com> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45881 Signed-off-by: Jani Nikula <jani.nikula@intel.com> Tested-by: Alex Ferrando <alferpal@gmail.com> Cc: stable@vger.kernel.org (for 3.4+3.5) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/eisa/virtual_root.c')
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