From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A10AC432BE for ; Fri, 23 Jul 2021 17:14:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF08360EB1 for ; Fri, 23 Jul 2021 17:14:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231245AbhGWQd5 (ORCPT ); Fri, 23 Jul 2021 12:33:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:42224 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229492AbhGWQdz (ORCPT ); Fri, 23 Jul 2021 12:33:55 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id A46A960EAF; Fri, 23 Jul 2021 17:14:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627060469; bh=CYlpIedcz47SMki4XJaCg60Cl6KIGEWKSosuQM3Da5o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bYTpV6vr47MGtABBYcSiDYzO8bV0M74JyBnuTlcKTdYNO0dRbD2LXkAAhPy8Xm5BU 0ltitCpD2RVzy2y5Ah7KfrmLZUw1hzTHseWj3+GFpiTH0pfXI2qzw7dEqAAbPjb/ng cu9gLDlEU4bTL+jDrdn15dhsq7zud4srBnx6t/c3wu61IujDJuE9fAn4bdG+QxdNDD 01iYQ9caSh9ow3XrIaQ2mcFwzu2keOCxXp1t7KlCeCbQitDsjv7DEjsKSLM9WZMBRu IloX3G0vnS3G8UbhTQ2xMy9p31cKHOduXge6fQ368UR3fYN3NBd6EqOKEWciz94gC/ 81iraSVD2HgYg== Date: Fri, 23 Jul 2021 18:14:22 +0100 From: Mark Brown To: Jonathan Cameron Cc: Puranjay Mohan , Michael.Hennerich@analog.com, alexandru.ardelean@analog.com, jic23@kernel.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, lars@metafoo.de, Dragos.Bogdan@analog.com, Darius.Berghe@analog.com Subject: Re: [PATCH v2 2/2] iio: accel: Add driver support for ADXL355 Message-ID: <20210723171422.GK5221@sirena.org.uk> References: <20210722062155.32998-1-puranjay12@gmail.com> <20210722062155.32998-3-puranjay12@gmail.com> <20210723181022.000032bd@Huawei.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="++alDQ2ROsODg1x+" Content-Disposition: inline In-Reply-To: <20210723181022.000032bd@Huawei.com> X-Cookie: Integrity has no need for rules. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --++alDQ2ROsODg1x+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 23, 2021 at 06:10:22PM +0100, Jonathan Cameron wrote: > @Mark. This has come up a few times recently. Are we now safe to assume > that regmap will always copy data when used with SPI and hence we no > longer need to ensure DMA safe buffers? =20 Only for single register I/O, I'd not assume that for things like raw I/O. Note that my name is spelt Mark. --++alDQ2ROsODg1x+ Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmD6+O0ACgkQJNaLcl1U h9CqMgf9G6rh8/mDkku74x+s5FbZRx5bRl6DTaQU9k2ZoYnD7/AvmvmvbTCqouTE WggjQ3Xvayj6Lwjzbz95WXm/Ovc7bbnXHHWWrZecG4Q+WX7VhcwSKsslzILp686q 4XDUpWkZYJTozBB4rkTIzaqzINC0egM3NjTZ/HASh055ttt9xXUVc6QE3Gi0b1hB PMH+1jHZIIW/OVJ8PKbFLS49QQTnTFe+2psoV54N39vEC2bCo6dtaP2qkICzkpY2 TEMZwHOdRrIfhAkTzpjaysV63VcJ3Beku5Azp2BVrW3oyoqWpGKQ38jK8inGYKGz xwUU6LfgYze0IJaRrn6sslRfaLc3+Q== =yk9t -----END PGP SIGNATURE----- --++alDQ2ROsODg1x+--