ASoC: arizona: Fix TDM slot length handling in arizona_hw_params

TDM slot length was set same as word length, regardless of the value
received in set_tdm_slot. This patch sets the TDM slot length correctly
as received in set_tdm_slot DAI callback
Signed-off-by: Nikesh Oswal <Nikesh.Oswal@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/arizona.c

@@ -1278,6 +1278,8 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
 	else
 		rates = &arizona_48k_bclk_rates[0];
 
+	wl = snd_pcm_format_width(params_format(params));
+
 	if (tdm_slots) {
 		arizona_aif_dbg(dai, "Configuring for %d %d bit TDM slots\n",
 				tdm_slots, tdm_width);
@@ -1285,6 +1287,7 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
 		channels = tdm_slots;
 	} else {
 		bclk_target = snd_soc_params_to_bclk(params);
+		tdm_width = wl;
 	}
 
 	if (chan_limit && chan_limit < channels) {
@@ -1319,8 +1322,7 @@ static int arizona_hw_params(struct snd_pcm_substream *substream,
 	arizona_aif_dbg(dai, "BCLK %dHz LRCLK %dHz\n",
 			rates[bclk], rates[bclk] / lrclk);
 
-	wl = snd_pcm_format_width(params_format(params));
-	frame = wl << ARIZONA_AIF1TX_WL_SHIFT | wl;
+	frame = wl << ARIZONA_AIF1TX_WL_SHIFT | tdm_width;
 
 	reconfig = arizona_aif_cfg_changed(codec, base, bclk, lrclk, frame);