drm/i915: Nuke MI_ARB_STATE save/restore

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Originally added in commit 1f84e550a8 ("drm/i915 more registers for
S3 (DSPCLK_GATE_D, CACHE_MODE_0, MI_ARB_STATE)") to fix some underruns.
I suspect that was due to the trickle feed settings getting clobbered
during suspend. We've been disabling trickle feed explicitly since
commit 20f949670f ("drm/i915: Disable trickle feed via MI_ARB_STATE
for the gen4") so this magic save/restore should no longer be needed.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200908140210.31048-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

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This commit is contained in:

Ville Syrjälä 2020-09-08 17:02:09 +03:00

parent e8fac46c78

commit b41e58ffe4

2 changed files with 0 additions and 7 deletions

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1

drivers/gpu/drm/i915/i915_drv.h

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6

drivers/gpu/drm/i915/i915_suspend.c

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