[PATCH 3/3] ASoC: sun4i-spdif: Add working 24bit audio support

[codekipper@gmail.com]

From: Marcus Cooper <codekipper@gmail.com>

24 bit audio file can be detected by the alsa driver as S32_LE.
Add this format to what is supported and change the DMA address
width.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
---
 sound/soc/sunxi/sun4i-spdif.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
index 5a9407aaa1a19..41caf1795d09b 100644
--- a/sound/soc/sunxi/sun4i-spdif.c
+++ b/sound/soc/sunxi/sun4i-spdif.c
@@ -287,14 +287,17 @@ static int sun4i_spdif_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
+	host->dma_params_tx.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
 		fmt |= SUN4I_SPDIF_TXCFG_FMT16BIT;
+		host->dma_params_tx.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
 		break;
 	case SNDRV_PCM_FORMAT_S20_3LE:
 		fmt |= SUN4I_SPDIF_TXCFG_FMT20BIT;
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
+	case SNDRV_PCM_FORMAT_S32_LE:
 		fmt |= SUN4I_SPDIF_TXCFG_FMT24BIT;
 		break;
 	default:
@@ -526,9 +529,10 @@ static const struct regmap_config sun4i_spdif_regmap_config = {
 
 #define SUN4I_RATES	SNDRV_PCM_RATE_8000_192000
 
-#define SUN4I_FORMATS	(SNDRV_PCM_FORMAT_S16_LE | \
-				SNDRV_PCM_FORMAT_S20_3LE | \
-				SNDRV_PCM_FORMAT_S24_LE)
+#define SUN4I_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | \
+				SNDRV_PCM_FMTBIT_S20_3LE | \
+				SNDRV_PCM_FMTBIT_S24_LE | \
+				SNDRV_PCM_FMTBIT_S32_LE)
 
 static struct snd_soc_dai_driver sun4i_spdif_dai = {
 	.playback = {
-- 
2.47.0