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(parent: 426115c) | patch
drm/i915: Fix up cpt pixel multiplier enable sequence
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 5 Jun 2013 11:34:32 +0000 (13:34 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 12 Jul 2013 16:54:01 +0000 (18:54 +0200)
commit3ad8a208abbe1bdfe31512053a81ac4938aed447
tree1aed9fa56eb80e22a5e93c613bef141323121ed0tree | snapshot (tar.gz zip)
parent426115cf5dd81d17a6322c493ca337e637ce2aedcommit | diff
drm/i915: Fix up cpt pixel multiplier enable sequence

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>
drivers/gpu/drm/i915/intel_display.c diff | blob | blame | history