[PATCH v8 05/14] ASoc: sun4i-i2s: Add 20 and 24 bit support

Clément Péron
2020-10-26T18:53:00Z

From: Marcus Cooper <codekipper@gmail.com>

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>
---
sound/soc/sunxi/sun4i-i2s.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
index beaca56a44ae..eee1e64cd8f4 100644
--- a/sound/soc/sunxi/sun4i-i2s.c
+++ b/sound/soc/sunxi/sun4i-i2s.c
@@ -599,6 +599,9 @@ 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));
@@ -1080,6 +1083,10 @@ 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 = {
@@ -1087,14 +1094,14 @@ 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,
--
2.25.1