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From: Shengjiu Wang <shengjiu.wang@nxp.com>
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Subject: [PATCH v3 1/2] ASoC: dt-bindings: imx-card: Add playback-only and
capture-only property
Date: Mon, 17 Feb 2025 10:17:14 +0800
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Refer to audio graph card, add playback-only and capture-only property
for imx-audio-card.yaml for the case that only playback or capture is
supported.
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>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
---
.../devicetree/bindings/sound/imx-audio-card.yaml | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml b/=
Documentation/devicetree/bindings/sound/imx-audio-card.yaml
index f7ad5ea2491e..3c75c8c78987 100644
--- a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
+++ b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
@@ -46,6 +46,14 @@ patternProperties:
description: see tdm-slot.txt.
$ref: /schemas/types.yaml#/definitions/uint32
=20
+ playback-only:
+ description: link is used only for playback
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ capture-only:
+ description: link is used only for capture
+ $ref: /schemas/types.yaml#/definitions/flag
+
cpu:
description: Holds subnode which indicates cpu dai.
type: object
@@ -71,6 +79,12 @@ patternProperties:
- link-name
- cpu
=20
+ allOf:
+ - not:
+ required:
+ - playback-only
+ - capture-only
+
additionalProperties: false
=20
required:
--=20
2.34.1
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From: Shengjiu Wang <shengjiu.wang@nxp.com>
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Subject: [PATCH v3 2/2] ASoC: imx-card: Add playback_only or capture_only
support
Date: Mon, 17 Feb 2025 10:17:15 +0800
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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