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=-8.2 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 3C97BC4320A for ; Tue, 24 Aug 2021 16:39:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1FE6861183 for ; Tue, 24 Aug 2021 16:39:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232577AbhHXQkE (ORCPT ); Tue, 24 Aug 2021 12:40:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:59578 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229896AbhHXQkD (ORCPT ); Tue, 24 Aug 2021 12:40:03 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AC6B661183; Tue, 24 Aug 2021 16:39:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629823159; bh=grPffO/AYJoyOT5FvaovgDQ2otCA+lgEQi6Zpr0dwOo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kg0rOWG0mpCHP1hYvApS13mg8W91KSr802Zm3OmGjeTvCEXlssWODJxXchovz/BbX a/AyY34qid54WM3HsJmcrRuCVJGCyJ/PPgOcawrwwQXHIdftB+LYSXUMD1nWoHit25 uYadWaDrc3a2sW/nShZkotkPg1ydkoy3TPnb6SdcYcNdFs8B4fC1ghgeuamA1CTvcG LK8IfIzTi8dC30+hql4RXe2GGIQSPbz2/wUw67JPF5qys8HhKW1xYwO51DuA+F7i/6 1Z5olpIhoXd3haI89F/0v812b8C1yUgafdu4GB2z6wYu84VwaoSmKDYl12Y0FkaH24 oRSurtytDPXQQ== Date: Tue, 24 Aug 2021 17:38:52 +0100 From: Mark Brown To: Lucas Tanure Cc: Greg Kroah-Hartman , "Rafael J . Wysocki" , Sanjay R Mehta , Nehal Bakulchandra Shah , linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, patches@opensource.cirrus.com Subject: Re: [PATCH 2/9] spi: core: Add flag for controllers that can't hold cs between transfers Message-ID: <20210824163852.GG4393@sirena.org.uk> References: <20210824104041.708945-1-tanureal@opensource.cirrus.com> <20210824104041.708945-3-tanureal@opensource.cirrus.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="4eRLI4hEmsdu6Npr" Content-Disposition: inline In-Reply-To: <20210824104041.708945-3-tanureal@opensource.cirrus.com> X-Cookie: Sentient plasmoids are a gas. User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --4eRLI4hEmsdu6Npr Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Aug 24, 2021 at 11:40:34AM +0100, Lucas Tanure wrote: > Create a flag for a controller that has an automatic cs selection and > can't hold cs activated between transfers > Some messages send address and data split between two transfers, see > regmap-spi, and without the cs held the data loses it`s meaning These controllers just plain can't support multiple transfers in any useful fashion, the flag name should reflect that as well as being a bit less long for legibility reasons. --4eRLI4hEmsdu6Npr Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmElIJsACgkQJNaLcl1U h9B7bwgAgzR4kI15DF4rHzaLfxoVt2tdfkCIdWHsNwWmD3IzicsD8pwNbeZfNhPu HBwdwYzlfSZzYu+bDktqdHK83rr5UX1XKqzSysXzDIn/qtw4Yp51OTUBEo01XAJr PzGTuPqLiKCjHXFHEgJ7APM+clI0vmi2oTbIjn5ffnSnxJLEyslR7FZPwXFZILil ChBrzvoBTXQh2wyeT+El7v8EHdM0tL5mel+eVvi09jGwnny8MR749TZVy3OXiRG5 WhHWJZgYSMDa4fr86/u4J8jTpX/zS3AJGCZkPenQ88LN5kCwuTW8eJh47AuXMEqn lUdSEo9Q5Umdw8fNWd1SaGH1+derHg== =eRBm -----END PGP SIGNATURE----- --4eRLI4hEmsdu6Npr--