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(parent: bd35d00) | patch
drm/i915/gvt: Fix guest fail to read EDID leading to black guest console issue.
authorXu Han <xu.han@intel.com>
Tue, 21 Mar 2017 02:00:59 +0000 (10:00 +0800)
committerZhenyu Wang <zhenyuw@linux.intel.com>
Tue, 21 Mar 2017 02:50:02 +0000 (10:50 +0800)
commitd0bf9c4ddc0c7a7233432e00eafc788401ca1048
tree2859ce204875e6a087e43cfcaa7b745522f4b609tree | snapshot
parentbd35d00a6e270ca58dd2c26564afe2c48aad7166commit | diff
drm/i915/gvt: Fix guest fail to read EDID leading to black guest console issue.

It appears missing slaves on the i2c should cause 0xff to be returned
rather than 0. So, when the Windows driver tried to address a slave
at 0x40 and got 0’s back rather than 0xff’s it must have confused it.

Signed-off-by: Paul Durrant <Paul.Durrant@citrix.com>
Signed-off-by: Xu Han <xu.han@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
drivers/gpu/drm/i915/gvt/edid.c diff | blob | history
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