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charset="utf-8" With the DPCM case, the backend only support capture or playback, then the linked frontend can only support capture or playback, but frontend can't automatically enable only capture or playback, it needs the input from dt-binding. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com> --- sound/soc/fsl/imx-card.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c index ac043ad367ac..905294682996 100644 --- a/sound/soc/fsl/imx-card.c +++ b/sound/soc/fsl/imx-card.c @@ -518,6 +518,7 @@ static int imx_card_parse_of(struct imx_card_data *data) struct snd_soc_dai_link *link; struct dai_link_data *link_data; struct of_phandle_args args; + bool playback_only, capture_only; int ret, num_links; u32 asrc_fmt =3D 0; u32 width; @@ -679,6 +680,10 @@ static int imx_card_parse_of(struct imx_card_data *dat= a) link->ops =3D &imx_aif_ops; } =20 + graph_util_parse_link_direction(np, &playback_only, &capture_only); + link->playback_only =3D playback_only; + link->capture_only =3D capture_only; + /* Get dai fmt */ ret =3D simple_util_parse_daifmt(dev, np, codec, NULL, &link->dai_fmt); --=20 2.34.1