Re: [PATCH 0/3] ASoC: cs35l41/cs35l45/cs4265: sort the reg_defaults tables

On 05/08/2026 12:00, Richard Fitzgerald wrote:
>>> Found by an audit of all reg_defaults tables under sound/, the SoundWire
>>> codec drivers are fixed by a separate series.
>>
>> Wow. Would it make sense to have a regmap helper to double-check the
>> addresses are indeed in-order in those reg_default tables?
>> I am not sure how this requirement can be enforced by just inspection, a
>> warning would help detect this sort of issues on more platforms.
>>
> It does seem probable that anything that relies on people just
> remembering to keep a large table sorted is prone to breaking,
> especially if the addresses are provided by named constant instead of
> a list of hardcoded numbers.
> 
> Should regmap check the table when the regmap is first created?
> As it has to search the table during normal use anyway, one extra walk
> when the regmap is created probably isn't a serious overhead.

But it will be done for _all_ devices which uses regmap on boot, small
things do add up, see my reply to Pierre-Louis.

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Péter