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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 51DE3CA9EBC for ; Sun, 27 Oct 2019 21:03:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AD63214AF for ; Sun, 27 Oct 2019 21:03:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572210217; bh=ODeQV7D452RsJPvO/GCdLNCAnLcW+rLVjTUnNcBeBLY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=uqk4BDmyBkviuVNiEgEC+zDlLGv2iSuKUg5cd5y/WAx0fc2S1C6/tXi1T3Dz6P09j vK7UY64jJJdL+V6K0zMAJPfK4H+IQ75pNxYVerzsjJScp3/MG6Gb5A87mFC8dNfQKr K8uKuBblsUPXwdlDwyQlpf5O9z75YmPWFKSK0oQY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727670AbfJ0VDf (ORCPT ); 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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(+) 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 { -- 2.20.1