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(parent: 4a53148) | 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)
commit14f5ba26aa7060b4cad9c4c288b9a785bd0cd1a8
tree2859ce204875e6a087e43cfcaa7b745522f4b609tree | snapshot
parent4a53148868493bd5e0b18a9814aaa20bf74e3b26commit | 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
Domain: System / Kernel;