drm/i915/bdw: Add missing delay during L3 SQC credit programming

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commit d6a862fe8c upstream.

BSpec requires us to wait ~100 clocks before re-enabling clock gating,
so make sure we do this.

CC: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1462280061-1457-2-git-send-email-imre.deak@intel.com
(cherry picked from commit 48e5d68d28)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Imre Deak 2016-05-03 15:54:19 +03:00 • committed by Greg Kroah-Hartman

parent bf12e894e6

commit bafa4fbc2b

1 changed files with 6 additions and 0 deletions

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drivers/gpu/drm/i915/intel_pm.c

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