Unverified Commit d29351e8 authored by Daniel Baluta's avatar Daniel Baluta Committed by Mark Brown
Browse files

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: default avatarDaniel Baluta <daniel.baluta@nxp.com>
Link: https://msgid.link/r/20231128081119.106360-2-daniel.baluta@oss.nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 6475b8e1

include/sound/simple_card_utils.h

+3 −0
Original line number Diff line number Diff line
@@ -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,

sound/soc/generic/audio-graph-card2.c

+6 −0
Original line number Diff line number Diff line
@@ -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;

sound/soc/generic/simple-card-utils.c

+19 −0
Original line number Diff line number Diff line
@@ -1129,6 +1129,25 @@ int graph_util_parse_dai(struct device *dev, struct device_node *ep, 
}

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");