ASoC: Say we can't read WM5100 ID register

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index c112f5e..de86042 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -2702,7 +2702,7 @@
 
 	ret = regmap_read(wm5100->regmap, WM5100_SOFTWARE_RESET, &reg);
 	if (ret < 0) {
-		dev_err(&i2c->dev, "Failed to read ID register\n");
+		dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret);
 		goto err_reset;
 	}
 	switch (reg) {