ASoC: Mediatek: add memory interface data align

This supports two data align settings. One is S32_LE and
other is S24_LE.
Signed-off-by: Shunli Wang <shunli.wang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/common/mtk-afe-fe-dai.c

@@ -241,6 +241,7 @@ int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
 	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 	struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id];
 	int hd_audio = 0;
+	int hd_align = 1;
 
 	/* set hd mode */
 	switch (substream->runtime->format) {
@@ -249,9 +250,11 @@ int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
 		break;
 	case SNDRV_PCM_FORMAT_S32_LE:
 		hd_audio = 1;
+		hd_align = 1;
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
 		hd_audio = 1;
+		hd_align = 0;
 		break;
 	default:
 		dev_err(afe->dev, "%s() error: unsupported format %d\n",
@@ -262,6 +265,10 @@ int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
 	mtk_regmap_update_bits(afe->regmap, memif->data->hd_reg,
 			       1, hd_audio, memif->data->hd_shift);
 
+	mtk_regmap_update_bits(afe->regmap, memif->data->hd_align_reg,
+			       memif->data->hd_align_mshift,
+			       hd_align ? memif->data->hd_align_mshift : 0);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(mtk_afe_fe_prepare);

sound/soc/mediatek/common/mtk-base-afe.h

@@ -24,7 +24,9 @@ struct mtk_base_memif_data {
 	int enable_reg;
 	int enable_shift;
 	int hd_reg;
+	int hd_align_reg;
 	int hd_shift;
+	int hd_align_mshift;
 	int msb_reg;
 	int msb_shift;
 	int agent_disable_reg;