linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am62-main: Remove power-domains from crypto node

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Message-ID: <ZG90RS4KYo0bCwF7@francesco-nb.int.toradex.com>
Date:   Thu, 25 May 2023 16:44:21 +0200
From:   Francesco Dolcini <francesco@...cini.it>
To:     Nishanth Menon <nm@...com>, kamlesh@...com
Cc:     vigneshr@...com, kristo@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: ti: k3-am62-main: Remove power-domains from
 crypto node

On Mon, Apr 17, 2023 at 08:42:41AM -0500, Nishanth Menon wrote:
> On 19:03-20230417, kamlesh@...com wrote:
> > From: Kamlesh Gurudasani <kamlesh@...com>
> > 
> > With latest firmware update, we can no longer control power of SA3UL from
> > main domain.
> 
> How is this backward compatible?

I just stumbled across this commit since I had an issue with crypto@...00000
not being probed on Verdin AM62.

Not sure how this is supposed to work about backward/forward
compatibility, however this is needed for having it working with the
latest firmware.

And if there is a proper way that take care of this, it should be
backported IMO.

Francesco