[PATCH 09/83] ASoC: audio-graph-card2: recommend to use auto select DAI format
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: 2026-05-26 02:02:12
Also in:
chrome-platform, imx, linux-renesas-soc, linux-riscv, linux-sound, spacemit
Subsystem:
sound, sound - generic sound card (simple-audio-card, audio-graph-card), sound - soc layer / dynamic audio power management (asoc), the rest · Maintainers:
Jaroslav Kysela, Takashi Iwai, Mark Brown, Kuninori Morimoto, Liam Girdwood, Linus Torvalds
"Simple Audio Card", "Audio Graph Card", "Audio Graph Card2" are possible to set DAI format via DT. OTOH, ASoC is supporting .auto_selectable_formats to select DAI format automatically. Let's recommend to use it on "Audio Graph Card2". One note is that it keeps supporting DAI format setting via DT. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> --- sound/soc/generic/audio-graph-card2.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 0202ed0ee78e8..6894bb936cfd2 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c@@ -778,6 +778,18 @@ static void graph_link_init(struct simple_util_priv *priv, graph_parse_daifmt(ports_cpu, &daifmt); graph_parse_daifmt(ports_codec, &daifmt); graph_parse_daifmt(lnk, &daifmt); + if (daifmt) { + struct device *dev = simple_priv_to_dev(priv); + + /* + * Recommend to use Auto Select by using .auto_selectable_formats. + * linux/sound/soc/renesas/rcar/core.c can be good sample for it. + * + * One note is that Audio Graph Card2 still keeps compatible to set + * DAI format via DT. + */ + dev_warn_once(dev, "use .auto_selectable_formats on each corresponding CPU/Codec driver"); + } graph_util_parse_link_direction(lnk, &playback_only, &capture_only); graph_util_parse_link_direction(ports_cpu, &playback_only, &capture_only);
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2.43.0