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=-14.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 07416C55178 for ; Fri, 30 Oct 2020 17:27:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B96B820756 for ; Fri, 30 Oct 2020 17:27:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727203AbgJ3R1n (ORCPT ); Fri, 30 Oct 2020 13:27:43 -0400 Received: from relay3-d.mail.gandi.net ([217.70.183.195]:55615 "EHLO relay3-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726297AbgJ3R1m (ORCPT ); Fri, 30 Oct 2020 13:27:42 -0400 X-Originating-IP: 91.224.148.103 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay3-d.mail.gandi.net (Postfix) with ESMTPSA id 8AB1360004; Fri, 30 Oct 2020 17:27:39 +0000 (UTC) From: Miquel Raynal To: Praveenkumar I , miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, sivaprak@codeaurora.org, peter.ujfalusi@ti.com, boris.brezillon@collabora.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kathirav@codeaurora.org, stable@vger.kernel.org Subject: Re: [PATCH] mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read Date: Fri, 30 Oct 2020 18:27:38 +0100 Message-Id: <20201030172738.29290-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <1602230872-25616-1-git-send-email-ipkumar@codeaurora.org> References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: e6ad7a4080245f2e3ff674786f0c8371804718c3 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 2020-10-09 at 08:07:52 UTC, Praveenkumar I wrote: > After each codeword NAND_FLASH_STATUS is read for possible operational > failures. But there is no DMA sync for CPU operation before reading it > and this leads to incorrect or older copy of DMA buffer in reg_read_buf. > > This patch adds the DMA sync on reg_read_buf for CPU before reading it. > > Fixes: 5bc36b2bf6e2 ("mtd: rawnand: qcom: check for operation errors in case of raw read") > Signed-off-by: Praveenkumar I Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks. Miquel