ASoC: sun4i-i2s: Add 20 and 24 bit support

Extend the functionality of the driver to include support of 20 and
24 bits per sample.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Link: https://lore.kernel.org/r/20201030144648.397824-7-peron.clem@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index 46e4da18c27fc11c7358271ee917ae7d15d3ce99..786731191d901172083d475558752e267adaca96 100644 (file)
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -600,6 +600,9 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream *substream,
        case 16:
                width = DMA_SLAVE_BUSWIDTH_2_BYTES;
                break;
+       case 32:
+               width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+               break;
        default:
                dev_err(dai->dev, "Unsupported physical sample width: %d\n",
                        params_physical_width(params));
@@ -1081,6 +1084,10 @@ static int sun4i_i2s_dai_probe(struct snd_soc_dai *dai)
        return 0;
 }
 
+#define SUN4I_FORMATS  (SNDRV_PCM_FMTBIT_S16_LE | \
+                        SNDRV_PCM_FMTBIT_S20_LE | \
+                        SNDRV_PCM_FMTBIT_S24_LE)
+
 static struct snd_soc_dai_driver sun4i_i2s_dai = {
        .probe = sun4i_i2s_dai_probe,
        .capture = {
@@ -1088,14 +1095,14 @@ static struct snd_soc_dai_driver sun4i_i2s_dai = {
                .channels_min = 1,
                .channels_max = 8,
                .rates = SNDRV_PCM_RATE_8000_192000,
-               .formats = SNDRV_PCM_FMTBIT_S16_LE,
+               .formats = SUN4I_FORMATS,
        },
        .playback = {
                .stream_name = "Playback",
                .channels_min = 1,
                .channels_max = 8,
                .rates = SNDRV_PCM_RATE_8000_192000,
-               .formats = SNDRV_PCM_FMTBIT_S16_LE,
+               .formats = SUN4I_FORMATS,
        },
        .ops = &sun4i_i2s_dai_ops,
        .symmetric_rates = 1,