drm/i915: preserve the PBC bits of TRANS_CHICKEN2

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Bits 30 and 24:0 are PBC, so don't zero them. Some of the other bits
are being zeroed, but I couldn't find a reason for this, so leave them
as they are for now to avoid regressions.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
[danvet: Delete the redudant #define that Imre spotted in his review.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Paulo Zanoni 2013-04-08 15:48:08 -03:00 • committed by Daniel Vetter

parent 3f704fa277

commit dc4bd2d109

2 changed files with 11 additions and 3 deletions

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7

drivers/gpu/drm/i915/i915_reg.h

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7

drivers/gpu/drm/i915/intel_pm.c

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