drm/i915: Skip intel_crtc_state_dump() if debugs aren't enabled

intel_crtc_state_dump() does a whole boatload of string formatting
which is all wasted energy if the debugs aren't even enabled. Skip
the whole thing in that case.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240215164055.30585-10-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

drivers/gpu/drm/i915/display/intel_crtc_state_dump.c

@@ -192,6 +192,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
 	char buf[64];
 	int i;
 
+	if (!drm_debug_enabled(DRM_UT_KMS))
+		return;
+
 	p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, NULL);
 
 	drm_printf(&p, "[CRTC:%d:%s] enable: %s [%s]\n",