drm/dp: Always print aux channel name in logs

Since we're about to convert everything in drm_dp_helper.c over to using
drm_dbg_*(), let's also make our logging more consistent in drm_dp_helper.c
while we're at it to ensure that we always print the name of the AUX
channel in question.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-8-lyude@redhat.comReviewed-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_dp_helper.c

@@ -139,8 +139,8 @@ void drm_dp_link_train_clock_recovery_delay(const struct drm_dp_aux *aux,
 					 DP_TRAINING_AUX_RD_MASK;
 
 	if (rd_interval > 4)
-		DRM_DEBUG_KMS("AUX interval %lu, out of range (max 4)\n",
-			      rd_interval);
+		DRM_DEBUG_KMS("%s: AUX interval %lu, out of range (max 4)\n",
+			      aux->name, rd_interval);
 
 	if (rd_interval == 0 || dpcd[DP_DPCD_REV] >= DP_DPCD_REV_14)
 		rd_interval = 100;
@@ -155,8 +155,8 @@ static void __drm_dp_link_train_channel_eq_delay(const struct drm_dp_aux *aux,
 						 unsigned long rd_interval)
 {
 	if (rd_interval > 4)
-		DRM_DEBUG_KMS("AUX interval %lu, out of range (max 4)\n",
-			      rd_interval);
+		DRM_DEBUG_KMS("%s: AUX interval %lu, out of range (max 4)\n",
+			      aux->name, rd_interval);
 
 	if (rd_interval == 0)
 		rd_interval = 400;
@@ -2781,7 +2781,7 @@ int drm_dp_pcon_frl_enable(struct drm_dp_aux *aux)
 	if (ret < 0)
 		return ret;
 	if (!(buf & DP_PCON_ENABLE_SOURCE_CTL_MODE)) {
-		DRM_DEBUG_KMS("PCON in Autonomous mode, can't enable FRL\n");
+		DRM_DEBUG_KMS("%s: PCON in Autonomous mode, can't enable FRL\n", aux->name);
 		return -EINVAL;
 	}
 	buf |= DP_PCON_ENABLE_HDMI_LINK;
@@ -2876,7 +2876,8 @@ void drm_dp_pcon_hdmi_frl_link_error_count(struct drm_dp_aux *aux,
 			num_error = 0;
 		}
 
-		DRM_ERROR("More than %d errors since the last read for lane %d", num_error, i);
+		DRM_ERROR("%s: More than %d errors since the last read for lane %d",
+			  aux->name, num_error, i);
 	}
 }
 EXPORT_SYMBOL(drm_dp_pcon_hdmi_frl_link_error_count);