Add basic support for codec-to-codec link in the axg sound card. The cpu side of these links is expected to properly set the hw_params and format of the link.
ATM, only the tohdmitx glue is supported but others (like the internal DAC glue) should follow.
Signed-off-by: Jerome Brunet jbrunet@baylibre.com --- sound/soc/meson/axg-card.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c index 5c8deee8d512..db0a7fc18928 100644 --- a/sound/soc/meson/axg-card.c +++ b/sound/soc/meson/axg-card.c @@ -29,6 +29,18 @@ struct axg_dai_link_tdm_data { struct axg_dai_link_tdm_mask *codec_masks; };
+/* + * Base params for the codec to codec links + * Those will be over-written by the CPU side of the link + */ +static const struct snd_soc_pcm_stream codec_params = { + .formats = SNDRV_PCM_FMTBIT_S24_LE, + .rate_min = 5525, + .rate_max = 192000, + .channels_min = 1, + .channels_max = 8, +}; + #define PREFIX "amlogic,"
static int axg_card_reallocate_links(struct axg_card *priv, @@ -517,6 +529,11 @@ static int axg_card_cpu_is_tdm_iface(struct device_node *np) return of_device_is_compatible(np, PREFIX "axg-tdm-iface"); }
+static int axg_card_cpu_is_codec(struct device_node *np) +{ + return of_device_is_compatible(np, PREFIX "g12a-tohdmitx"); +} + static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np, int *index) { @@ -540,6 +557,8 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
if (axg_card_cpu_is_tdm_iface(dai_link->cpu_of_node)) ret = axg_card_parse_tdm(card, np, index); + else if (axg_card_cpu_is_codec(dai_link->cpu_of_node)) + dai_link->params = &codec_params;
return ret; }