drm/i915: Disable DC states around GMBUS on GLK

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commit 3488d0237f upstream.

Prevent the DMC from destroying GMBUS transfers on GLK. GMBUS
lives in PG1 so DC off is all we need.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171208213739.16388-1-ville.syrjala@linux.intel.com
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
(cherry picked from commit 156961ae7b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ville Syrjälä 2017-12-08 23:37:36 +02:00 • committed by Greg Kroah-Hartman

parent d4f9aaeb26

commit 5d8c39173b

1 changed files with 1 additions and 0 deletions

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drivers/gpu/drm/i915/intel_runtime_pm.c

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