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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 E8B5BC33C8C for ; Tue, 7 Jan 2020 12:39:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BABA5207E0 for ; Tue, 7 Jan 2020 12:39:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="YMPQ+5e4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728217AbgAGMjQ (ORCPT ); Tue, 7 Jan 2020 07:39:16 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:17852 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728193AbgAGMjO (ORCPT ); Tue, 7 Jan 2020 07:39:14 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 07 Jan 2020 04:38:26 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Tue, 07 Jan 2020 04:39:13 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Tue, 07 Jan 2020 04:39:13 -0800 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 7 Jan 2020 12:39:13 +0000 Received: from [192.168.22.23] (10.124.1.5) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 7 Jan 2020 12:39:11 +0000 From: Thierry Reding To: Dmitry Osipenko CC: Thierry Reding , Jonathan Hunter , Laxman Dewangan , Mikko Perttunen , Wolfram Sang , , , Subject: Re: [PATCH v3 6/9] i2c: tegra: Use relaxed versions of readl/writel In-Reply-To: <20200106010423.5890-7-digetx@gmail.com> References: <20200106010423.5890-7-digetx@gmail.com> X-NVConfidentiality: public MIME-Version: 1.0 Message-ID: <41ab5d2ace574878a8cb3ec35dbd0a30@HQMAIL105.nvidia.com> Date: Tue, 7 Jan 2020 12:39:11 +0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1578400706; bh=w7K6WnQIKwOJEaRFceFzCE7LfhdUIhbptHFCV+dF3rM=; h=X-PGP-Universal:From:To:CC:Subject:In-Reply-To:References: X-NVConfidentiality:MIME-Version:Message-ID:Date:Content-Type: Content-Transfer-Encoding; b=YMPQ+5e4tUxMk/DiOASAanrTC0Z07sr+SusuEDOsrTx4ovvP63+Fd4SNJWvLVIx9X GQXMGY0rFlWNSPENEiMoD7/ed0XDwaFQuICFI8JCkl/JwyKJ6q9HuIxwt/FimI6IK/ YP/hnyI1n3psip7AbKkLiFwWbmUKonE4jPjUE3hqIjBXw1c5dhjz4euUhfLMBLBPLQ Jxs414BChN4r+4NEnMn+8x7t/B3MEjUhmlZ/HbwYqA2dgAv0PeWTyjmYY5n/vE+7vL DlprDYaWkLFD0TGumE2M2ao26S1IGxsE01gJ7aP7JTwjaqLA04urALjyU5xvn7eolJ xRAxzA9sQlWAw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 06 Jan 2020 04:04:20 +0300, Dmitry Osipenko wrote: > There is nothing to synchronize in regards to memory accesses for PIO > transfers and for DMA transfers the DMA API takes care of the syncing. > > Signed-off-by: Dmitry Osipenko > --- > drivers/i2c/busses/i2c-tegra.c | 21 +++++++++++---------- > 1 file changed, 11 insertions(+), 10 deletions(-) Tested-by: Thierry Reding