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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 496FBC433DF for ; Fri, 5 Jun 2020 15:01:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 247882065C for ; Fri, 5 Jun 2020 15:01:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591369277; bh=atSo0Qb+rMrsZv5QANKFcbcUcwoez30MfjPtT8ppNS8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=ophTpojBz/YaL93QzqGvL87T8BKfgFtbhZvpkDHUsIlW/KnmruSGgkl4ICnF33UMH w5uK66v8JixQMVQrVM0RzEl8s0hTceqSZZ6EoCbdscLy8+8GYL3qgWyITQI4oELz3y qmfRMzLYjtEwMcKBaX2rNqowKmOB6VAuqPmApNUE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728005AbgFEPBG (ORCPT ); Fri, 5 Jun 2020 11:01:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:58854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727857AbgFEPBG (ORCPT ); Fri, 5 Jun 2020 11:01:06 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 83F232065C; Fri, 5 Jun 2020 15:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591369266; bh=atSo0Qb+rMrsZv5QANKFcbcUcwoez30MfjPtT8ppNS8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=iNOTh3GVfGr8Oi8u3jquG56gWGC7TwnPsXkrbsAbPb8no4OYQZMIe9uExtbQjaTy9 gN0gj1O7xUzlW4M5FuRDzTu1MTHRk5b2MVEdO6hxErTu4/ctKjd4fisO4gD4RRctgv mk+YqE/s7yEhcLm0OsNy9zGIzVtS6bdm06fJsPTI= Date: Fri, 5 Jun 2020 16:01:03 +0100 From: Mark Brown To: Robin Gong Cc: mark.rutland@arm.com, robh+dt@kernel.org, catalin.marinas@arm.com, vkoul@kernel.org, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, linux-imx@nxp.com, dmaengine@vger.kernel.org Subject: Re: [PATCH v9 05/14] spi: imx: fallback to PIO if dma setup failure Message-ID: <20200605150103.GG5413@sirena.org.uk> References: <1591392755-19136-1-git-send-email-yibin.gong@nxp.com> <1591392755-19136-6-git-send-email-yibin.gong@nxp.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="+sHJum3is6Tsg7/J" Content-Disposition: inline In-Reply-To: <1591392755-19136-6-git-send-email-yibin.gong@nxp.com> X-Cookie: Air is water with holes in it. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org --+sHJum3is6Tsg7/J Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, Jun 06, 2020 at 05:32:26AM +0800, Robin Gong wrote: > Fallback to PIO in case dma setup failed. For example, sdma firmware not > updated but ERR009165 workaroud added in kernel. Please do not submit new versions of already applied patches, please submit incremental updates to the existing code. Modifying existing commits creates problems for other users building on top of those commits so it's best practice to only change pubished git commits if absolutely essential. --+sHJum3is6Tsg7/J Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl7aXi8ACgkQJNaLcl1U h9ACrwf/RD2Rv/jpt2YPaf64q5u9KvPJTvEmVU5U5Bntbxu4kMr9w/H6cT0QyhUg pfOGftQDcUXm9x+HC0Q+xC3+bPmgzzzbjGZLxMfVfgvpyV6JJ+GhTVX/LjR6Jpi+ eyVMWffvIVKSZH8PO+nymh1/fcrOLbz3g+6D7fQJ+XNh7XmJJV0ysIpE/43KLvZs X4netF+zcPwX2jBYdDpP0WRi+yzBDaJSNv3rV2AJgxO0Yug7d31On8HkRYxCoMaz q0RJ/8s/ol2Pv0uT8GaVF7wJbDLA4XKhR53l4EeaBluFn9bh9lLYf9i3Mi53mbJQ 2XlQLzL/GxTo2szSSv9mBII/D6nXaA== =LU0r -----END PGP SIGNATURE----- --+sHJum3is6Tsg7/J--