drm/bridge: anx6345: don't print error message if regulator is not ready

We don't want to print scary message if devm_regulator_get() returns
-EPROBE_DEFER
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20200226081011.1347245-3-anarsoul@gmail.com

drivers/gpu/drm/bridge/analogix/analogix-anx6345.c

@@ -720,14 +720,18 @@ static int anx6345_i2c_probe(struct i2c_client *client,
 	/* 1.2V digital core power regulator  */
 	anx6345->dvdd12 = devm_regulator_get(dev, "dvdd12");
 	if (IS_ERR(anx6345->dvdd12)) {
-		DRM_ERROR("dvdd12-supply not found\n");
+		if (PTR_ERR(anx6345->dvdd12) != -EPROBE_DEFER)
+			DRM_ERROR("Failed to get dvdd12 supply (%ld)\n",
+				  PTR_ERR(anx6345->dvdd12));
 		return PTR_ERR(anx6345->dvdd12);
 	}
 
 	/* 2.5V digital core power regulator  */
 	anx6345->dvdd25 = devm_regulator_get(dev, "dvdd25");
 	if (IS_ERR(anx6345->dvdd25)) {
-		DRM_ERROR("dvdd25-supply not found\n");
+		if (PTR_ERR(anx6345->dvdd25) != -EPROBE_DEFER)
+			DRM_ERROR("Failed to get dvdd25 supply (%ld)\n",
+				  PTR_ERR(anx6345->dvdd25));
 		return PTR_ERR(anx6345->dvdd25);
 	}