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Commit 156961ae authored by Ville Syrjälä's avatar Ville Syrjälä
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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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171208213739.16388-1-ville.syrjala@linux.intel.com


Reviewed-by: default avatarDhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
parent 219af733

drivers/gpu/drm/i915/intel_runtime_pm.c

+1 −0
Original line number Diff line number Diff line
@@ -1792,6 +1792,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, 
	BIT_ULL(POWER_DOMAIN_GT_IRQ) |			\

	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 (		\