Re: [PATCH v3 1/2] ASoC: cs35l41: CS35L41 Boosted Smart Amplifier

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On 7/12/21 10:03 AM, Mark Brown wrote:
On Fri, Jul 09, 2021 at 06:11:28PM -0500, David Rhodes wrote:
On 7/5/21 2:20 PM, Mark Brown wrote:

I can't see any references to GLOBAL_EN outside this function, why might
it not be set?

This check prevents an incorrect 'PDN Failed' message if DAPM initializes
and turns the widget off at boot (with no prior power-up).

In what way does it prevent this message and why is this a good approach
to the issue?


There is a better approach that I will include in v4.
The chip has a bit field that indicates if GLOBAL_EN has been asserted.
The 'PDN Failed' message can be skipped if this bit is not set.



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