Commit 3488d023 authored Dec 08, 2017 by Ville Syrjälä Committed by Jani Nikula Jan 02, 2018

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 156961ae)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

parent e0093a89

drivers/gpu/drm/i915/intel_runtime_pm.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1786,6 +1786,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
		GLK_DISPLAY_POWERWELL_2_POWER_DOMAINS \| \
		BIT_ULL(POWER_DOMAIN_MODESET) \| \
		BIT_ULL(POWER_DOMAIN_AUX_A) \| \
		BIT_ULL(POWER_DOMAIN_GMBUS) \| \
		BIT_ULL(POWER_DOMAIN_INIT))

		#define CNL_DISPLAY_POWERWELL_2_POWER_DOMAINS ( \

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