Hi! Dne sreda, 14. avgust 2019 ob 08:08:53 CEST je codekip...@gmail.com napisal(a): > From: Marcus Cooper <codekip...@gmail.com> > > Extend the functionality of the driver to include support of 20 and > 24 bits per sample for the earlier SoCs. > > Newer SoCs can also handle 32bit samples. > > Signed-off-by: Marcus Cooper <codekip...@gmail.com> > --- > sound/soc/sunxi/sun4i-i2s.c | 21 +++++++++++++++++++-- > 1 file changed, 19 insertions(+), 2 deletions(-) > > diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c > index a71969167053..d3c8789f70bb 100644 > --- a/sound/soc/sunxi/sun4i-i2s.c > +++ b/sound/soc/sunxi/sun4i-i2s.c > @@ -690,6 +690,11 @@ static int sun4i_i2s_hw_params(struct snd_pcm_substream > *substream, case 16: > width = DMA_SLAVE_BUSWIDTH_2_BYTES; > break; > + case 20: > + case 24: > + case 32:
params_physical_width() returns 32 also for 20 and 24-bit formats, so drop 20 and 24. Best regards, Jernej > + width = DMA_SLAVE_BUSWIDTH_4_BYTES; > + break; > default: > dev_err(dai->dev, "Unsupported physical sample width: %d\n", > params_physical_width(params)); > @@ -1015,6 +1020,13 @@ 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) > + > +#define SUN8I_FORMATS (SUN4I_FORMATS | \ > + SNDRV_PCM_FMTBIT_S32_LE) > + > static struct snd_soc_dai_driver sun4i_i2s_dai = { > .probe = sun4i_i2s_dai_probe, > .capture = { > @@ -1022,14 +1034,14 @@ static struct snd_soc_dai_driver sun4i_i2s_dai = { > .channels_min = 2, > .channels_max = 2, > .rates = SNDRV_PCM_RATE_8000_192000, > - .formats = SNDRV_PCM_FMTBIT_S16_LE, > + .formats = SUN4I_FORMATS, > }, > .playback = { > .stream_name = "Playback", > .channels_min = 2, > .channels_max = 2, > .rates = SNDRV_PCM_RATE_8000_192000, > - .formats = SNDRV_PCM_FMTBIT_S16_LE, > + .formats = SUN4I_FORMATS, > }, > .ops = &sun4i_i2s_dai_ops, > .symmetric_rates = 1, > @@ -1505,6 +1517,11 @@ static int sun4i_i2s_probe(struct platform_device > *pdev) goto err_pm_disable; > } > > + if (i2s->variant->has_fmt_set_lrck_period) { > + soc_dai->playback.formats = SUN8I_FORMATS; > + soc_dai->capture.formats = SUN8I_FORMATS; > + } > + > if (!of_property_read_u32(pdev->dev.of_node, > "allwinner,playback-channels", &val)) { > if (val >= 2 && val <= 8)