linux-kernel - Re: [PATCH v7 1/6] DONOTMERGE: arm64: dts: ti: Add TI TPS65219 PMIC support for AM642 SK board.

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Message-ID: <e2bc53fe-3a0c-cf24-8b29-ca377aba3721@baylibre.com>
Date:   Thu, 15 Dec 2022 16:51:40 +0100
From:   jerome Neanne <jneanne@...libre.com>
To:     Wadim Egorov <W.Egorov@...tec.de>,
        "lgirdwood@...il.com" <lgirdwood@...il.com>,
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Subject: Re: [PATCH v7 1/6] DONOTMERGE: arm64: dts: ti: Add TI TPS65219 PMIC
 support for AM642 SK board.



On 15/12/2022 16:09, Wadim Egorov wrote:
> Hi Jerome,
> 
> is this setup working for you on the AM642 SK board?
> 
> I am testing your PMIC patches on a AM62 based board with a similar setup and
> running into the following error
> 
>      VDDSHV5_SDIO: bypassed regulator has no supply!
>      VDDSHV5_SDIO: will resolve supply early: ldo1
>      VDDSHV5_SDIO: supplied by regulator-dummy
>      VDDSHV5_SDIO: failed to get the current voltage: -EINVAL
> 
> Have you noticed problems with LDO1 and bypass mode?

Wadim,

I did not noticed this on am642 board but IIRC this rail was not used. I 
heard about similar issue reported to me by Nishanth M with a fix 
proposal here:
https://gist.github.com/nmenon/e4dd6ef6afe31bc9750fa6cbee8d3e25

I did not have time yet to investigate on this but will do soon.

Regards,
Jerome