diff options
| author | Daniel Baluta <daniel.baluta@nxp.com> | 2023-11-28 10:11:18 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-12-14 10:56:47 +0000 |
| commit | d29351e8c20d61a852bbdfcab7bb7166bd916558 (patch) | |
| tree | 4c5aa96b73c1a826eb7d4b7d9ae2325e45b9d7b3 | |
| parent | 6475b8e1821c9d14e60592a74c10d75431500c7c (diff) | |
ASoC: audio-graph-card2: Introduce playback-only/capture-only DAI link flags
We need this to support MICFIL PDM found on i.MX8MP where the DAI link
supports only capture direction.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://msgid.link/r/20231128081119.106360-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/simple_card_utils.h | 3 | ||||
| -rw-r--r-- | sound/soc/generic/audio-graph-card2.c | 6 | ||||
| -rw-r--r-- | sound/soc/generic/simple-card-utils.c | 19 |
3 files changed, 28 insertions, 0 deletions
diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index e5da10b4c43b..ad67957b7b48 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -195,6 +195,9 @@ int graph_util_is_ports0(struct device_node *port); int graph_util_parse_dai(struct device *dev, struct device_node *ep, struct snd_soc_dai_link_component *dlc, int *is_single_link); +int graph_util_parse_link_direction(struct device_node *np, + bool *is_playback_only, bool *is_capture_only); + #ifdef DEBUG static inline void simple_util_debug_dai(struct simple_util_priv *priv, char *name, diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c index 78d9679decda..f880a7f73522 100644 --- a/sound/soc/generic/audio-graph-card2.c +++ b/sound/soc/generic/audio-graph-card2.c @@ -760,6 +760,7 @@ static void graph_link_init(struct simple_util_priv *priv, struct device_node *ep; struct device_node *ports; unsigned int daifmt = 0, daiclk = 0; + bool playback_only = 0, capture_only = 0; unsigned int bit_frame = 0; if (graph_lnk_is_multi(port)) { @@ -798,6 +799,11 @@ static void graph_link_init(struct simple_util_priv *priv, if (is_cpu_node) daiclk = snd_soc_daifmt_clock_provider_flipped(daiclk); + graph_util_parse_link_direction(port, &playback_only, &capture_only); + + dai_link->playback_only = playback_only; + dai_link->capture_only = capture_only; + dai_link->dai_fmt = daifmt | daiclk; dai_link->init = simple_util_dai_init; dai_link->ops = &graph_ops; diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index cfa70a56ff0f..9006ef5e95f5 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -1129,6 +1129,25 @@ parse_dai_end: } EXPORT_SYMBOL_GPL(graph_util_parse_dai); +int graph_util_parse_link_direction(struct device_node *np, + bool *playback_only, bool *capture_only) +{ + bool is_playback_only = false; + bool is_capture_only = false; + + is_playback_only = of_property_read_bool(np, "playback-only"); + is_capture_only = of_property_read_bool(np, "capture-only"); + + if (is_playback_only && is_capture_only) + return -EINVAL; + + *playback_only = is_playback_only; + *capture_only = is_capture_only; + + return 0; +} +EXPORT_SYMBOL_GPL(graph_util_parse_link_direction); + /* Module information */ MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); MODULE_DESCRIPTION("ALSA SoC Simple Card Utils"); |