From patchwork Mon Nov 16 14:36:54 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 56656 Delivered-To: patch@linaro.org Received: by 10.112.155.196 with SMTP id vy4csp1353253lbb; Mon, 16 Nov 2015 06:37:10 -0800 (PST) X-Received: by 10.68.108.66 with SMTP id hi2mr55225433pbb.131.1447684630359; Mon, 16 Nov 2015 06:37:10 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id uu9si50634373pac.19.2015.11.16.06.37.09; Mon, 16 Nov 2015 06:37:10 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-samsung-soc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-samsung-soc-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-samsung-soc-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750982AbbKPOhI (ORCPT + 4 others); Mon, 16 Nov 2015 09:37:08 -0500 Received: from mailout1.w1.samsung.com ([210.118.77.11]:17460 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750921AbbKPOhI (ORCPT ); Mon, 16 Nov 2015 09:37:08 -0500 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout1.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NXW006VKWLSS780@mailout1.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Mon, 16 Nov 2015 14:37:04 +0000 (GMT) X-AuditID: cbfec7f5-f794b6d000001495-d6-5649ea0f0bff Received: from eusync1.samsung.com ( [203.254.199.211]) by eucpsbgm2.samsung.com (EUCPMTA) with SMTP id DE.78.05269.F0AE9465; Mon, 16 Nov 2015 14:37:03 +0000 (GMT) Received: from amdc1339.digital.local ([106.116.147.30]) by eusync1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTPA id <0NXW00FNDWLOHLA0@eusync1.samsung.com>; Mon, 16 Nov 2015 14:37:03 +0000 (GMT) From: Marek Szyprowski To: linux-samsung-soc@vger.kernel.org Cc: Marek Szyprowski , Kukjin Kim , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz Subject: [PATCH] ARM: dts: exynos4210-universal_c210: disable DMA for UARTs Date: Mon, 16 Nov 2015 15:36:54 +0100 Message-id: <1447684614-25336-1-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.9.2 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOJMWRmVeSWpSXmKPExsVy+t/xy7r8rzzDDFq32lhsnLGe1eL1C0OL /sevmS1mnN/HZLH2yF12B1aPTas62Tz6tqxi9Pi8SS6AOYrLJiU1J7MstUjfLoEr4/KnjSwF KzkqFj26y9zA+Jmti5GTQ0LARGLFkutMELaYxIV764HiXBxCAksZJY62bwBLCAk0MUl8XBoC YrMJGEp0ve0CaxYRUJX43LaAHaSBWWA7o8TzrVvAGoQFvCXWzXjFAmKzABUt/P8WzOYV8JBY 8aEbarOcxP+XK5gmMHIvYGRYxSiaWppcUJyUnmukV5yYW1yal66XnJ+7iRHi/a87GJceszrE KMDBqMTDe+KJe5gQa2JZcWXuIUYJDmYlEd6u055hQrwpiZVVqUX58UWlOanFhxilOViUxHln 7nofIiSQnliSmp2aWpBaBJNl4uCUamBM/nc2+XqLk7HDRSv73EMWfMITNj8yunVg8jORxuA0 o78GSVcDH/56HKadyhioUHo/c9fG76veOO56+5nh04sDmhVTi4o63/Jyvdcoms2Ytn1p5RnW t0cPpJy64+omwyunGizym9XXXfJZscTtoF7zyqbkKNMbq3+nbq9Ve9jkxiDntHlv8k8lluKM REMt5qLiRABLkiVN+gEAAA== Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org PDMA for UART devices seems not to be working properly on Exynos 4210 revision 0 used in Universal C210 boards, so disable it to let one to use UART devices (driver defaults to PIO mode if DMA is not present). Signed-off-by: Marek Szyprowski --- arch/arm/boot/dts/exynos4210-universal_c210.dts | 8 ++++++++ 1 file changed, 8 insertions(+) -- 1.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts index 81b7ec7..4f5d379 100644 --- a/arch/arm/boot/dts/exynos4210-universal_c210.dts +++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts @@ -560,16 +560,24 @@ &serial_0 { status = "okay"; + /delete-property/dmas; + /delete-property/dma-names; }; &serial_1 { status = "okay"; + /delete-property/dmas; + /delete-property/dma-names; }; &serial_2 { status = "okay"; + /delete-property/dmas; + /delete-property/dma-names; }; &serial_3 { status = "okay"; + /delete-property/dmas; + /delete-property/dma-names; };