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authorChris Wilson <chris@chris-wilson.co.uk>2010-07-20 15:44:45 -0700
committerChris Wilson <chris@chris-wilson.co.uk>2010-09-18 15:46:19 +0100
commitf899fc64cda8569d0529452aafc0da31c042df2e (patch)
tree61b6d32abe3524b83abc9d8b9382e3f82225cd64 /include/drm
parent373a3cf744c774478f44921c50011b896ab08f9d (diff)
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drm/i915: use GMBUS to manage i2c links
Use the GMBUS interface rather than direct bit banging to grab the EDID over DDC (and for other forms of auxiliary communication with external display controllers). The hope is that this method will be much faster and more reliable than bit banging for fetching EDIDs from buggy monitors or through switches, though we still preserve the bit banging as a fallback in case GMBUS fails. Based on an original patch by Jesse Barnes. Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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