Parse "convert-sample-format" DT binding and fixup the sample format as applicable. This is similar to the existing "convert-channels" and "convert-rate" properties for channels and rate fixup respectively.
Signed-off-by: Sameer Pujar spujar@nvidia.com Cc: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/simple_card_utils.h | 1 + sound/soc/generic/simple-card-utils.c | 34 ++++++++++++++++++++++++++++++++++ 2 files changed, 35 insertions(+)
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index ab55f40..a0b827f 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -39,6 +39,7 @@ struct asoc_simple_dai { struct asoc_simple_data { u32 convert_rate; u32 convert_channels; + const char *convert_sample_format; };
struct asoc_simple_jack { diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 4a29e31..1b201dd 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -15,6 +15,33 @@ #include <sound/pcm_params.h> #include <sound/simple_card_utils.h>
+static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data, + struct snd_pcm_hw_params *params) +{ + int i; + struct snd_mask *mask = hw_param_mask(params, + SNDRV_PCM_HW_PARAM_FORMAT); + struct { + char *fmt; + u32 val; + } of_sample_fmt_table[] = { + { "s8", SNDRV_PCM_FORMAT_S8}, + { "s16_le", SNDRV_PCM_FORMAT_S16_LE}, + { "s24_le", SNDRV_PCM_FORMAT_S24_LE}, + { "s24_3le", SNDRV_PCM_FORMAT_S24_3LE}, + { "s32_le", SNDRV_PCM_FORMAT_S32_LE}, + }; + + for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) { + if (!strcmp(data->convert_sample_format, + of_sample_fmt_table[i].fmt)) { + snd_mask_none(mask); + snd_mask_set(mask, of_sample_fmt_table[i].val); + break; + } + } +} + void asoc_simple_convert_fixup(struct asoc_simple_data *data, struct snd_pcm_hw_params *params) { @@ -30,6 +57,9 @@ void asoc_simple_convert_fixup(struct asoc_simple_data *data, if (data->convert_channels) channels->min = channels->max = data->convert_channels; + + if (data->convert_sample_format) + asoc_simple_fixup_sample_fmt(data, params); } EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
@@ -49,6 +79,10 @@ void asoc_simple_parse_convert(struct device_node *np, /* channels transfer */ snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels"); of_property_read_u32(np, prop, &data->convert_channels); + + /* convert sample format */ + snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format"); + of_property_read_string(np, prop, &data->convert_sample_format); } EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);