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 Jun 2022 17:48:51 +0100
From:   Mark Brown <broonie@kernel.org>
To:     Dong Aisheng <dongas86@gmail.com>
Cc:     Aisheng Dong <aisheng.dong@nxp.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "l.stach@pengutronix.de" <l.stach@pengutronix.de>,
        Peng Fan <peng.fan@nxp.com>,
        "shawnguo@kernel.org" <shawnguo@kernel.org>
Subject: Re: [PATCH RFC 1/2] regmap: add option to disable debugfs
Message-ID: <YrNH8/eaYHYeAWNJ@sirena.org.uk>
References: <DB9PR04MB8477CD99D5847291A629994180B09@DB9PR04MB8477.eurprd04.prod.outlook.com>
 <YrCznap77OyHu4bO@sirena.org.uk>
 <DB9PR04MB847785E1861525FC1E4AD97280B39@DB9PR04MB8477.eurprd04.prod.outlook.com>
 <YrHkXH1M4NydBfQT@sirena.org.uk>
 <DB9PR04MB84772F73D4AA1B49F87BECCF80B39@DB9PR04MB8477.eurprd04.prod.outlook.com>
 <CAA+hA=RQVRHzdy_ZpwcC-ZB8mwUYuMYu_iLNAfuPcMCS1G9WXA@mail.gmail.com>
 <YrMMzizzE7rIji5x@sirena.org.uk>
 <CAA+hA=SA7BY8WxrbuRAOsuHyz+bx-EJq-UT_YLW5wYMS+io+pg@mail.gmail.com>
 <YrNC3eHx7ARQy/Vd@sirena.org.uk>
 <CAA+hA=SHgp1jZn1Qwrcu3fMnn22aaVimS4+Y2hPcWehS4zdRoA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
        protocol="application/pgp-signature"; boundary="xDUxxgqnT7sUsrLu"
Content-Disposition: inline
In-Reply-To: <CAA+hA=SHgp1jZn1Qwrcu3fMnn22aaVimS4+Y2hPcWehS4zdRoA@mail.gmail.com>
Precedence: bulk


--xDUxxgqnT7sUsrLu
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

On Thu, Jun 23, 2022 at 12:42:51AM +0800, Dong Aisheng wrote:
> On Thu, Jun 23, 2022 at 12:27 AM Mark Brown <broonie@kernel.org> wrote:

> > cache_bypass is only going to be true if something enabled bypass, why
> > would a device that doesn't use a cache enable bypass?  It does get
> > turned on transiently by things like patching but those only make sense
> > if the device can be accessed so caceh_only shouldn't be on then.

> It was enabled by default according to the code:
> __regmap_init -> regcache_init

Ah, right.  That makes sense - we should relax the check to only apply
if there is actually a cache.

--xDUxxgqnT7sUsrLu
Content-Type: application/pgp-signature; name="signature.asc"

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

iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmKzR/IACgkQJNaLcl1U
h9DGaQf/ZCq9VWO3ofHpZRx0yp3FDK4aUd7qAalJ1T73pWVSk7oN0B7WFLEEZUjp
psfGcIzztckSoJIL7vxfGayS32ZsOXsetjkKDlRaitE2pHOx5nriGV3b888D1ysA
6jJk43hzFnEjU17YONVOmlSMPrNs8PV0YvIedT9V2WofKY+YWIRCnLgS4Gc0GvgK
4utsH9r12dYIQDtUkMcLWgrw/Sy7dw9SApe8NcbphkVKY2HVyf8ZFRjaIAIu3phI
Q5sGhkVjAwrqOMocr+TEu+1tycGS53JpqrPSiIJJ/gITYfstLCd4hfZ4ciD0/xmF
vnwAoLGLmg1EYxvvUYgm+C9meNyIQg==
=Ke7G
-----END PGP SIGNATURE-----

--xDUxxgqnT7sUsrLu--