drm/i915: Don't ignore level 0 lines watermark for glk+

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On glk+ the level 0 lines watermark actually matters. Do not ignore it.
And while at it let's change things so that we always program a
consistnet 0 to the register when the lines watermarks is ignored
by the hardware.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181221171436.8218-2-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

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This commit is contained in:

Ville Syrjälä 2018-12-21 19:14:28 +02:00

parent 5b0bd14dcc

commit b52c273be6

1 changed files with 13 additions and 2 deletions

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drivers/gpu/drm/i915/intel_pm.c

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