drm/i915/lspcon: Fail LSPCON probe if the start of DPCD can't be read

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All types of DP devices (eDP, DP sink, DP branch) will fail their probe
if the start of DPCD can't be read. The LSPCON PCON functionality also
depends on accessing this area, so fail the probe if the read fails.

Cc: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477326811-30431-6-git-send-email-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2016-10-24 19:33:28 +03:00

parent 7b3fc170d6

commit 24e807e79f

3 changed files with 8 additions and 1 deletions

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2

drivers/gpu/drm/i915/intel_dp.c

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2

drivers/gpu/drm/i915/intel_drv.h

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5

drivers/gpu/drm/i915/intel_lspcon.c

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