drm/i915: vlv/chv: fix DSI sideband register accessing

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So far we used the wrong opcodes to access the DSI registers, so the
register writes during DSI programming didn't actually succeed and left
the registers unchanged. This wasn't a problem for the initial modeset,
where the BIOS-programmed values happened to work, but after resuming
from s0ix these registers are reset and failing to program them results
in a blank screen.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Imre Deak 2014-05-19 11:41:18 +03:00 • committed by Daniel Vetter

parent cf63e4a220

commit 42a88e97bc

1 changed files with 2 additions and 2 deletions

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drivers/gpu/drm/i915/intel_sideband.c

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