drm/i915/uncore: Warn only if unclaimed access remains flagged

Commit 4b276ed3 ("drm/i915/uncore: Warn on previous unclaimed
accesses") tried to improve our report of unclaimed register access,
however it unveiled cases that were not previously causing any harm.

Downgrade the first message to debug so we can still see them and
eventually fix, but don't warn.

Fixes: 4b276ed3 ("drm/i915/uncore: Warn on previous unclaimed accesses")
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220408164837.3845786-1-lucas.demarchi@intel.com

drivers/gpu/drm/i915/intel_uncore.c

@@ -1518,13 +1518,11 @@ __unclaimed_previous_reg_debug(struct intel_uncore *uncore,
 			       const i915_reg_t reg,
 			       const bool read)
 {
-	if (drm_WARN(&uncore->i915->drm,
-		     check_for_unclaimed_mmio(uncore),
+	if (check_for_unclaimed_mmio(uncore))
+		drm_dbg(&uncore->i915->drm,
 			"Unclaimed access detected before %s register 0x%x\n",
 			read ? "read from" : "write to",
-		     i915_mmio_reg_offset(reg)))
-		/* Only report the first N failures */
-		uncore->i915->params.mmio_debug--;
+			i915_mmio_reg_offset(reg));
 }
 
 static inline void