forked from Minki/linux
drm/i915: Disable DC states around GMBUS on GLK
Prevent the DMC from destroying GMBUS transfers on GLK. GMBUS
lives in PG1 so DC off is all we need.
Cc: stable@vger.kernel.org
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>
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@ -1786,6 +1786,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
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GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS | \
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BIT_ULL(POWER_DOMAIN_MODESET) | \
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BIT_ULL(POWER_DOMAIN_AUX_A) | \
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BIT_ULL(POWER_DOMAIN_GMBUS) | \
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BIT_ULL(POWER_DOMAIN_INIT))
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#define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \
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