ASoC: add control components management (dc73d73a) · Commits · 戴 / test

This ASCII string can carry additional information about soundcard components or configuration. Add the possibility to set this string via the ASoC card. Signed-off-by:

Jaroslav Kysela <perex@perex.cz> Cc: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20191119174933.25526-1-perex@perex.cz Signed-off-by:

Mark Brown <broonie@kernel.org>

include/sound/soc.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -982,6 +982,7 @@ struct snd_soc_card {
		const char *name;
		const char *long_name;
		const char *driver_name;
		const char *components;
		char dmi_longname[80];
		char topology_shortname[32];

sound/soc/soc-core.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -2108,6 +2108,19 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
		soc_setup_card_name(card->snd_card->driver,
		card->driver_name, card->name, 1);

		if (card->components) {
		/* the current implementation of snd_component_add() accepts */
		/* multiple components in the string separated by space, */
		/* but the string collision (identical string) check might */
		/* not work correctly */
		ret = snd_component_add(card->snd_card, card->components);
		if (ret < 0) {
		dev_err(card->dev, "ASoC: %s snd_component_add() failed: %d\n",
		card->name, ret);
		goto probe_end;
		}
		}

		if (card->late_probe) {
		ret = card->late_probe(card);
		if (ret < 0) {

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