Re: [PATCH] ASoC: cs35l56: Fix illegal writes to OTP_MEM registers

[Mark Brown]

On Tue, Apr 28, 2026 at 12:52:28PM +0100, Richard Fitzgerald wrote:

> These registers hold a constant, and originally they were marked as
> readable non-volatile so that this value would be read into the regmap
> cache. The problem with this is regcache_sync() issues a write for any
> cached register that does not have a reg_default.

This feels like something that's common enough to be worth teaching the
regmap core about.

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