drm/i915: Fix up cpt pixel multiplier enable sequence

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Bspec for the "DPLL HDMI multiplier" field says:

"Restriction : The DPLL must be enabled and stable before setting these bits.
These bits must be programmed after DPLL_SEL is programmed."

There is apparently no restriction on programming the DPLL_SEL
register wrt the DPLL. So let's just move that up before we enable the
pch dpll.

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

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This commit is contained in:

Daniel Vetter 2013-06-05 13:34:32 +02:00

parent 426115cf5d

commit 3ad8a208ab

1 changed files with 11 additions and 9 deletions

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drivers/gpu/drm/i915/intel_display.c

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