ASoC: UDA1380: DATAI is slave only

Only allow SND_SOC_DAIFMT_CBS_CFS for the playback DAI.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/uda1380.c

@@ -399,8 +399,9 @@ static int uda1380_set_dai_fmt_both(struct snd_soc_dai *codec_dai,
 		iface |= R01_SFORI_MSB | R01_SFORO_MSB;
 	}
 
-	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) == SND_SOC_DAIFMT_CBM_CFM)
-		iface |= R01_SIM;
+	/* DATAI is slave only, so in single-link mode, this has to be slave */
+	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
+		return -EINVAL;
 
 	uda1380_write(codec, UDA1380_IFACE, iface);
 
@@ -428,6 +429,10 @@ static int uda1380_set_dai_fmt_playback(struct snd_soc_dai *codec_dai,
 		iface |= R01_SFORI_MSB;
 	}
 
+	/* DATAI is slave only, so this has to be slave */
+	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
+		return -EINVAL;
+
 	uda1380_write(codec, UDA1380_IFACE, iface);
 
 	return 0;