drm/i915/guc: Retry GuC load for all load failures

Currently we only retry to load GuC firmware if the load fails due to
timeout. On Gen9 GuC loading may fail for different reasons, not just
hang/timeout. Direction from the GuC team is to retry for all cases of
GuC load failure on Gen9, not just for timeout.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108593Signed-off-by: Robert M. Fosha <robert.m.fosha@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190329231746.9129-1-robert.m.fosha@intel.com

drivers/gpu/drm/i915/intel_uc.c

@@ -375,7 +375,7 @@ int intel_uc_init_hw(struct drm_i915_private *i915)
 
 		intel_guc_init_params(guc);
 		ret = intel_guc_fw_upload(guc);
-		if (ret == 0 || ret != -ETIMEDOUT)
+		if (ret == 0)
 			break;
 
 		DRM_DEBUG_DRIVER("GuC fw load failed: %d; will reset and "