diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-06-15 03:24:09 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-06-15 20:14:43 +0300 |
| commit | 13bb1cc0ad205b2aeeb8d2ea5c790a396135283d (patch) | |
| tree | 711d88cb5bb5ff5b80651a5c88748537ae3eac93 /sound | |
| parent | 616c3b15f596e1f1e6c2537a1ad3492052eecba6 (diff) | |
| download | linux-13bb1cc0ad205b2aeeb8d2ea5c790a396135283d.tar.xz | |
ASoC: simple-card-utils: add asoc_simple_card_convert_fixup()
Current simple/audio scu card drivers are supporting same
convert-rate/convert-channels on DT, but doesn't use same function
for it.
Encapsulation is one of simple card util's purpose.
Let's add asoc_simple_card_parse_convert/asoc_simple_card_convert_fixup
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/generic/simple-card-utils.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 2ad7633292bf..948a18842e64 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -13,6 +13,46 @@ #include <linux/of_graph.h> #include <sound/simple_card_utils.h> +void asoc_simple_card_convert_fixup(struct asoc_simple_card_data *data, + struct snd_pcm_hw_params *params) +{ + struct snd_interval *rate = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *channels = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + if (data->convert_rate) + rate->min = + rate->max = data->convert_rate; + + if (data->convert_channels) + channels->min = + channels->max = data->convert_channels; +} +EXPORT_SYMBOL_GPL(asoc_simple_card_convert_fixup); + +void asoc_simple_card_parse_convert(struct device *dev, char *prefix, + struct asoc_simple_card_data *data) +{ + struct device_node *np = dev->of_node; + char prop[128]; + + if (!prefix) + prefix = ""; + + /* sampling rate convert */ + snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate"); + of_property_read_u32(np, prop, &data->convert_rate); + + /* channels transfer */ + snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels"); + of_property_read_u32(np, prop, &data->convert_channels); + + dev_dbg(dev, "convert_rate %d\n", data->convert_rate); + dev_dbg(dev, "convert_channels %d\n", data->convert_channels); +} +EXPORT_SYMBOL_GPL(asoc_simple_card_parse_convert); + int asoc_simple_card_parse_daifmt(struct device *dev, struct device_node *node, struct device_node *codec, |