On Tue, Jun 16, 2026 at 11:00:38AM +0800, [email protected] wrote: > From: Shengjiu Wang <[email protected]> > > After pm_runtime_enable() the AUDMIX hardware block is powered off and > remains suspended until the first runtime resume. Any register write > issued between probe() and the first resume (for example from DAPM or > ALSA control paths) would target unpowered hardware and be silently > lost.
> platform_set_drvdata(pdev, priv); > pm_runtime_enable(dev); > + regcache_cache_only(priv->regmap, true); How does the cache get turned off again when runtime PM is configured off? I'd expect the device to probe powered up and then be powered down and put into cache only mode as a result of runtime PM running.
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