From patchwork Sun Oct 27 21:00:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 177864 Delivered-To: patch@linaro.org Received: by 2002:a92:409a:0:0:0:0:0 with SMTP id d26csp2535637ill; Sun, 27 Oct 2019 14:13:59 -0700 (PDT) X-Google-Smtp-Source: APXvYqzY55Huq3hRyjEOFdKYRX2+BdLejHucJjNx0KGIZCp0RbWmsdaSMFRd98r5Yr+KeTKQiqIe X-Received: by 2002:a17:906:f42:: with SMTP id h2mr13613872ejj.39.1572210839674; Sun, 27 Oct 2019 14:13:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572210839; cv=none; d=google.com; s=arc-20160816; b=B0n7/fmZU3IYs/2988lJCIlSU/wbByaCKF38ZYbAeMWQWGpwoWESjaNF4Sie3oo5+W 8QU8PyHu+qNBtReblt+6bflHbc5l4kOLMnrFcv52Ym16fi+LM9bJVRW0LKzpA3yIE/XG DAqbueStczfDCNLOWWGNY5mjZkB7/07gIBaXiI0bRYgzXDs6sX/JLbMZzer7iLy2t/Jc G2i4MSO/N70PpFXMDsLdl2PJJXQCQpDwcGHCt0Dw/deo0cl+JCROB/waJDTCclOuUidM +Om/PY6hH/FNlaXQbPT4lsQrgicO0ZpIUGYUSCacNbhLUKuHFZYomyWvCEX6++HNTGdn yG9A== 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=/jIX4m1+1DVdF6RmSntXUHoa0xNJYjKGnMDAop584yE=; b=B9lYDJHJzvtudihzKKLAimRhK2rkcayPNctGwafyiVAPYri3f3FLkQZBxyBLzZdQH1 6OV3M4zOXGKCKMpd/+vdD4QIr1M6e9/TIH9k8M56X9pv00pxCYUJBPm/cJ/DxEK90zTy QQC81iz4rwbd6LgXtYaGgbGlbrUWnORGYjEfUhDF9+29RqyXIpJRhwlr8tQ9F0X6lgTd 7q0lay+CWIVmn/2XeDTPHA61lSK3Ks7UPFAdwMBrOouTn0Dgbbxb+6dwYqX5yQzftr5y rkwE4dWGswLmB8q2ol5isb/DejfMkRq1SUAkNZyiMfsdf4XCmco+qpPWM4cIC3qB432S VSUg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=YR3T5uMx; 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 v8si5130174eja.227.2019.10.27.14.13.59; Sun, 27 Oct 2019 14:13:59 -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=YR3T5uMx; 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 S1730367AbfJ0VN5 (ORCPT + 26 others); Sun, 27 Oct 2019 17:13:57 -0400 Received: from mail.kernel.org ([198.145.29.99]:32814 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730343AbfJ0VNz (ORCPT ); Sun, 27 Oct 2019 17:13:55 -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 7F654208C0; Sun, 27 Oct 2019 21:13:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210835; bh=2dUNRIy0dla7Y0wuoEdvjGO01rJ2UMAR+njUmoJQ62I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YR3T5uMxhchBY0nXbqZBvHAiMnmBkUosFUG+OEQg5W8wlfSUrnmeMSbh94ip/ZDKC xWd5uNgJb4sDr+/64SEJHbAglc8VxyN8PBeIx0RoFrY96ujXcIqKa6ZT1Xsumm4vLS rgaYqmNLDgcPLhx8Xbr22hS7C16rYgJVgtakLXRw= 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 4.19 08/93] ARM: dts: am4372: Set memory bandwidth limit for DISPC Date: Sun, 27 Oct 2019 22:00:20 +0100 Message-Id: <20191027203253.738570255@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191027203251.029297948@linuxfoundation.org> References: <20191027203251.029297948@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 d4b7c59eec685..cf1e4f747242f 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -1142,6 +1142,8 @@ ti,hwmods = "dss_dispc"; clocks = <&disp_clk>; clock-names = "fck"; + + max-memory-bandwidth = <230000000>; }; rfbi: rfbi@4832a800 {