Commit ee595888 authored by José Roberto de Souza's avatar José Roberto de Souza
Browse files

drm/i915/display/icl+: Check if DMC is fused off 



Check if DMC is fused off and handle it.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Reviewed-by: default avatarRamalingam C <ramalingam.c@intel.com>
Signed-off-by: default avatarJosé Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191026001323.216052-4-jose.souza@intel.com
parent 7a40aac1

drivers/gpu/drm/i915/i915_reg.h

+1 −0
Original line number Diff line number Diff line
@@ -7750,6 +7750,7 @@ enum { 
#define   SKL_DFSM_CDCLK_LIMIT_540	(1 << 23)

#define   SKL_DFSM_CDCLK_LIMIT_450	(2 << 23)

#define   SKL_DFSM_CDCLK_LIMIT_337_5	(3 << 23)

#define   ICL_DFSM_DMC_DISABLE		(1 << 23)

#define   SKL_DFSM_PIPE_A_DISABLE	(1 << 30)

#define   SKL_DFSM_PIPE_B_DISABLE	(1 << 21)

#define   SKL_DFSM_PIPE_C_DISABLE	(1 << 28)

drivers/gpu/drm/i915/intel_device_info.c

+3 −0
Original line number Diff line number Diff line
@@ -987,6 +987,9 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv) 


		if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE)

			info->display.has_fbc = 0;



		if (INTEL_GEN(dev_priv) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE))

			info->display.has_csr = 0;

	}



	/* Initialize slice/subslice/EU info */

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