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Commit 4805608a authored by Liam Girdwood's avatar Liam Girdwood Committed by Mark Brown
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ASoC: dapm - Add methods to retrieve snd_card and soc_card from dapm context. 



In preparation for ASoC Dynamic PCM (AKA DSP) support.

Provide convenience methods to retrieve the soc_card or snd_card from a
DAPM context.

Signed-off-by: default avatarLiam Girdwood <lrg@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent d7c3e952

sound/soc/soc-dapm.c

+30 −0
Original line number Diff line number Diff line
@@ -124,6 +124,36 @@ static inline struct snd_soc_dapm_widget *dapm_cnew_widget( 
	return kmemdup(_widget, sizeof(*_widget), GFP_KERNEL);

}



/* get snd_card from DAPM context */

static inline struct snd_card *dapm_get_snd_card(

	struct snd_soc_dapm_context *dapm)

{

	if (dapm->codec)

		return dapm->codec->card->snd_card;

	else if (dapm->platform)

		return dapm->platform->card->snd_card;

	else

		BUG();



	/* unreachable */

	return NULL;

}



/* get soc_card from DAPM context */

static inline struct snd_soc_card *dapm_get_soc_card(

		struct snd_soc_dapm_context *dapm)

{

	if (dapm->codec)

		return dapm->codec->card;

	else if (dapm->platform)

		return dapm->platform->card;

	else

		BUG();



	/* unreachable */

	return NULL;

}



static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg)

{

	if (w->codec)