Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Wed, 22 Mar 2023 13:13:17 +0000
From:   Mark Brown <broonie@kernel.org>
To:     Julien Panis <jpanis@baylibre.com>
Cc:     Esteban Blanc <eblanc@baylibre.com>, linus.walleij@linaro.org,
        lgirdwood@gmail.com, a.zummo@towertech.it,
        alexandre.belloni@bootlin.com, linux-kernel@vger.kernel.org,
        linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org,
        jneanne@baylibre.com
Subject: Re: [PATCH INTERNAL v1 3/3] regulator: tps6594-regulator: Add driver
 for TI TPS6594 regulators
Message-ID: <ZBr+7X3lcFdI8p/o@sirena.org.uk>
References: <20230224133129.887203-1-eblanc@baylibre.com>
 <20230224133129.887203-4-eblanc@baylibre.com>
 <205a4e62-fd87-629c-ea34-d863ff1549d8@baylibre.com>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
        protocol="application/pgp-signature"; boundary="7b77vJCR5aLhKSWc"
Content-Disposition: inline
In-Reply-To: <205a4e62-fd87-629c-ea34-d863ff1549d8@baylibre.com>
Precedence: bulk


--7b77vJCR5aLhKSWc
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

On Wed, Mar 22, 2023 at 10:10:23AM +0100, Julien Panis wrote:

> Question @ Mark/Liam:
> Shouldn't we use the generic 'regulator-coupled-with' property
> instead of 'ti,multi-phase-id' ?

My understanding was that this was a hardware configuration where
two regulators operate as one with only one set of registers used
for configuration.

> I am in charge of upstreaming dt-bindings and maintainers
> pointed out the similarity between 'multi-phase' and 'coupled'
> regulator concepts. Does 'regulator-coupled-with' mean that
> outputs of buck converters are combined ? If so, this generic
> property should replace our specific 'ti,multi-phase-id' prop,
> I guess.

No, coupled regulators are regulators where the voltages can vary
but there's a constraint that their configurations need to be
related somehow, for example they must be within 200mV of each
other or something like that.

--7b77vJCR5aLhKSWc
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----

iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmQa/u0ACgkQJNaLcl1U
h9CHVwf+MNSLGVVn5oahssZebfVn5ilv5kCZfyYQW582N/XQEr64fra8vYqaYDps
nxq0VkcVPeLeN9z69Alhpz3bSLsHVWP22N9v8usCp3Q6NlC6NY8vpePOPkXVTMmn
KATjO2Z0N8Q86xodlSNxefZKNlycEIRvRS4vCnTrM5iqJ/VlVKlGhhlscQH+W5Aw
UClOwf3NFosZgRLoopZEa4PLTS0ocETMzWAU0X5hXEn4rr275rap0yoNk/IRdkAN
cmEPWD993RJr+PcnuaiqL9qT5fKquqA+1UCBM+2OU3kNgouOgnvKPkRoq2LNem9N
A5dnRWHEb2M2hASiQH5RxwDTIxflLA==
=aJlP
-----END PGP SIGNATURE-----

--7b77vJCR5aLhKSWc--