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=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 4D769CA9EA0 for ; Fri, 25 Oct 2019 08:55:46 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DE5CE21D71 for ; Fri, 25 Oct 2019 08:55:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="iC6rlaF2"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="FIQ/dERd" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DE5CE21D71 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FN+ZzyKDYVS6c1VOR3oZdEdUBBmePP4jaRg53UwhUJg=; b=iC6rlaF2HpIWnt gmLNT3CCr//1mlD2GuTBrdodAhQVNucChw4wjffbqFfQoUCOb74QnC6B43C7VCldeEBdllJp1tUv+ lUt7NneDMtj1BU4RRjFK/0UiZEX6GKoTOFKsvWPWiph1ddvhsjXF5g9xPfjScCEI81P3q1e8QvFBg b9EGVnrv0QkRoHA8Me9xvMfg+ZrKPK5s2tIF2Iao1qlZnFyhmxYAiA0HnAa+audlKFOi3Zkr/Rkox thzIsEcPvQEZfc0bil3WepKi08TZOd93uefDKLInwE8UAf3E3NOq0i801uQhrYsEVd8zwSxzdR5LV +tWNK/kQZjbEazI24kCA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNvNh-00039q-7I; Fri, 25 Oct 2019 08:55:37 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iNvNe-000397-Gn for linux-arm-kernel@lists.infradead.org; Fri, 25 Oct 2019 08:55:35 +0000 Received: from dragon (li937-157.members.linode.com [45.56.119.157]) (using TLSv1.2 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 45D2521D7B; Fri, 25 Oct 2019 08:55:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1571993734; bh=5i3d+HY/V9+fI+uU7h1tX+fWD57IhBHMQfmMyo6jW0g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FIQ/dERdy5OkfSnkwC/QgV1xafO+vBptMDHo96N++fPAbjhSmlkAGTYvw3jNb1VFi S7bP4XDAcKBi1T5YIgLuBu8vztAbKdPBY4ZeZ2/wEoYtZJxRlqFZ3bdlB1F17+zKeE pfirmEbL1hEYAsGqA5dT8DKdV+kpfLy+KRJlkJdo= Date: Fri, 25 Oct 2019 16:55:17 +0800 From: Shawn Guo To: Lukasz Majewski Subject: Re: [PATCH v2] dts: Disable DMA support on the BK4 vf610 device's fsl_lpuart driver Message-ID: <20191025085515.GH3208@dragon> References: <20191010090802.16383-1-lukma@denx.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191010090802.16383-1-lukma@denx.de> User-Agent: Mutt/1.5.21 (2010-09-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191025_015534_583545_DDF6B14D X-CRM114-Status: GOOD ( 11.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Sascha Hauer , linux-kernel@vger.kernel.org, Stefan Agner , Rob Herring , Pengutronix Kernel Team , Robin Murphy , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Oct 10, 2019 at 11:08:02AM +0200, Lukasz Majewski wrote: > This change disables the DMA support (RX/TX) on the NXP's fsl_lpuart > driver - the PIO mode is used instead. This change is necessary for better > robustness of BK4's device use cases with many potentially interrupted > short serial transfers. > > Without it the driver hangs when some distortion happens on UART lines. > > Signed-off-by: Lukasz Majewski > Suggested-by: Robin Murphy Subject prefix should be 'ARM: dts: ...'. I fixed it up and applied the patch. Shawn _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel