From patchwork Sun Oct 27 21:00:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 177827 Delivered-To: patch@linaro.org Received: by 2002:a92:409a:0:0:0:0:0 with SMTP id d26csp2526529ill; Sun, 27 Oct 2019 14:03:39 -0700 (PDT) X-Google-Smtp-Source: APXvYqwAfgfqMjeudBNQ5jh+9Tyauj5d6sBNM9LVyVd7mDsDDQELhB2FEOmRGohmG5Jke4yz6NRC X-Received: by 2002:a17:906:6d82:: with SMTP id h2mr13681464ejt.127.1572210219167; Sun, 27 Oct 2019 14:03:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572210219; cv=none; d=google.com; s=arc-20160816; b=V4tujKVDPFVsS7qh2b3EC8UCcuSQ8D+73Dho1ncez/5eoddWq/Pipq3eZs+6y7OS7R 7DOidF47pexyVPSSRgfjwv3eH/DqJQy3wPuCaD8tkUn852mGYKS3w9DgsFamCGlOA/6E DKqJLTKK4GlvL/pDwkrq55eDbf4SVuXX/A/1KNzRLnCFVXTo3Uk5iKar8rHxDHX5uDTx zvOsuUIthLKDbpcZ6/MhlEVlfq2SO4Xdk/bbikm2k4AN/d1UjZoAQ047/5WvoTaQLdTG PXNbmos85QbWc+aTilrl6Vph3+nRf3uITelCLRXZbHB8jPllCzXDP4V0bJF3UHL3AElX cBLA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=RPFflek8HhFsmKyoVWpV//2u8wISToO2CXz3Mh5bbh4=; b=Om/k13E66/zgFfIr0Xc9yK9K4DRV4/4QV5b8hAxULsVnJS/a8rBwjkMuD88EZdfPc4 X+inmiKzVuOuNbD6WR02ffdcps0KV0FyjkJ3Z3l7wnh310DVijeJgkcpJjfbk01+AkI6 Mng9ZskWEvGXI9lgOl9C5VqxVd+8LOyHEbzmjDloCqjdcDRfir+vdHoxcZ+Sh11ceHEl sDTC4OQb+W3xAf6ArTXOMNsGtVDerJ+AlpbSVavuXdn4DBTRXFrg2LKZQ9HyssdPADiM Ow3Zt59wZ60R9R5VJBuPEsukZfJRHlPsK7z1uubPEySWavv7SEoe/VA7vrA7SxT7b8vF 3IRw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=xHrDGfLG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id gw3si4968859ejb.385.2019.10.27.14.03.38; Sun, 27 Oct 2019 14:03:39 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=xHrDGfLG; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727670AbfJ0VDf (ORCPT + 26 others); Sun, 27 Oct 2019 17:03:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:48822 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728289AbfJ0VDb (ORCPT ); Sun, 27 Oct 2019 17:03:31 -0400 Received: from localhost (100.50.158.77.rev.sfr.net [77.158.50.100]) (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 D21952064A; Sun, 27 Oct 2019 21:03:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210211; bh=ODeQV7D452RsJPvO/GCdLNCAnLcW+rLVjTUnNcBeBLY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xHrDGfLGNQ/Vs18j0aBgA4Ga1xIfReaGEMrCg3vTRQHl486XsKRa5asny5CVCXHVZ Xvz3btusVWZ7Eu9r+U5qye7ZW/8IMXykcUUrhAo6qxsx4yWMt1rotQRN/Wkw6HaCoL 0CFrMcFL1d8sT7i47ZJAT30Xh7CqnmQi3YA2TRew= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Peter Ujfalusi , Tomi Valkeinen , Tony Lindgren , Sasha Levin Subject: [PATCH 4.4 05/41] ARM: dts: am4372: Set memory bandwidth limit for DISPC Date: Sun, 27 Oct 2019 22:00:43 +0100 Message-Id: <20191027203103.062004692@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191027203056.220821342@linuxfoundation.org> References: <20191027203056.220821342@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Ujfalusi [ Upstream commit f90ec6cdf674248dcad85bf9af6e064bf472b841 ] Set memory bandwidth limit to filter out resolutions above 720p@60Hz to avoid underflow errors due to the bandwidth needs of higher resolutions. am43xx can not provide enough bandwidth to DISPC to correctly handle 'high' resolutions. Signed-off-by: Peter Ujfalusi Signed-off-by: Tomi Valkeinen Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- arch/arm/boot/dts/am4372.dtsi | 2 ++ 1 file changed, 2 insertions(+) -- 2.20.1 diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 3ef1d5a26389c..3bb5254a227a3 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -1002,6 +1002,8 @@ ti,hwmods = "dss_dispc"; clocks = <&disp_clk>; clock-names = "fck"; + + max-memory-bandwidth = <230000000>; }; rfbi: rfbi@4832a800 {