[RFC] ASoC: soc-core: proposal to remove num_auto_selectable_formats from snd_soc_dai_ops

From: HariKrishna Sagala

Date: Fri Oct 31 2025 - 00:56:54 EST


Hi,

Good day.
Iʼd like to propose a small cleanup and simplification in the
snd_soc_dai_ops structure by removing the
"num_auto_selectable_formats" parameter.

Context:
Currently,snd_soc_dai_ops includes the "num_auto_selectable_formats"
field to indicate the number of entries in the "auto_selectable_formats"
array.However, this count can be derived programmatically using the
ARRAY_SIZE() macro wherever needed.

Proposal:
Remove the "num_auto_selectable_formats" field from the
snd_soc_dai_ops structure.Replace usage references to this field with
ARRAY_SIZE(auto_selectable_formats) in the relevant code paths.

One effect I see is if the parameter "auto_selectable_formats" has
only one priority format because few codecs are defined as a u64
variable,will correct and prepare a patch.

Please provide suggestions, objections and also to consider any
compatibility problems,historic importance of same.

If there are no objections, I would like to prepare a patch for
the same.

Thanks.

Regards,
HariKrishna.