From patchwork Mon Sep 30 08:54:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 174727 Delivered-To: patch@linaro.org Received: by 2002:a92:7e96:0:0:0:0:0 with SMTP id q22csp6840466ill; Mon, 30 Sep 2019 01:55:10 -0700 (PDT) X-Google-Smtp-Source: APXvYqySdFXE5a2wIVyoYmqmEXWqLcZBy1SFaj4WCY6aeXYUDuGe939JzfSfa9Ro7GjhPg7y42cz X-Received: by 2002:a17:90a:266c:: with SMTP id l99mr25581439pje.93.1569833710533; Mon, 30 Sep 2019 01:55:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1569833710; cv=none; d=google.com; s=arc-20160816; b=HFNTy6q7gel9sulOpegaFhPsHiZyaEP9FMACB/39cOGY7nJWn0j7m8nxfBXH9pJvfE vHo6twP03VJhQDygdE/AvYxTqoxqyLkjPJ6X1wMwGXdf6ObZTVmZv6/ql5dxQBrhbUTP 2Q1Pbp2hCf84lmaXBRIsFU9sSP3lf6ft0BfAk77DaZG6XPESHhwY8HlHBei8bt4ej6jq Eu3EUy6ZTugdZxBnw1CRcbTopXgSufJoE+XRpC+OFLCrMeYfasQCqxx/Q9aMHzOEYCdv c76Q0WMhbas3yhg610QcrFWHQXuOqpnTwcyoDkiFcyIYjW8ByJ39nApPsY9uxWY63MY5 WCbA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:cc:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:mime-version:message-id:date:subject:to:from :delivered-to; bh=Cqv4sjGzBZAWjZ8b2MruKoZ55DmUFPHeKThkrW5uy58=; b=rWKGxQKML33zoSq0j7YBDHJ83nqIbPd+ACdq3LabxDmjajQEIGRWqpxGubpZBo3jOp hRvacOBXciirES6WbfLwCbHPhygE1boQm/SUsjbyiq59pl7WGTTPePlG1NA5rH5v9gNB YFZuiG/E9P/BwpRD8PMNtYL+nJvO+i1HXrRmN2bonY6IFn221wNcIKM32Uem+JEP83KI Ap/McP8C6GsqCA5h1VjBHxAAghkW7QZAmytcYhSyZQQmlgxwzpeFGtctagrP7yfGt8MZ JpyDGLhmNyj+bzAxTJzkWDSHXcXqSkM1LZgJxxnzW7rtazaO2XRBlAGGiihc2OSEGGuf Qz3Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Return-Path: Received: from gabe.freedesktop.org (gabe.freedesktop.org. [2610:10:20:722:a800:ff:fe36:1795]) by mx.google.com with ESMTPS id w9si4516640plp.231.2019.09.30.01.55.10 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 30 Sep 2019 01:55:10 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) client-ip=2610:10:20:722:a800:ff:fe36:1795; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8589788161; Mon, 30 Sep 2019 08:55:08 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by gabe.freedesktop.org (Postfix) with ESMTPS id 02AF988161 for ; Mon, 30 Sep 2019 08:55:07 +0000 (UTC) Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id x8U8t5dT053713; Mon, 30 Sep 2019 03:55:05 -0500 Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x8U8t54s079884 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 30 Sep 2019 03:55:05 -0500 Received: from DFLE109.ent.ti.com (10.64.6.30) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5; Mon, 30 Sep 2019 03:54:55 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Mon, 30 Sep 2019 03:54:55 -0500 Received: from deskari.lan (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x8U8t2tF012944; Mon, 30 Sep 2019 03:55:03 -0500 From: Tomi Valkeinen To: Tony Lindgren Subject: [PATCH] ARM: dts: am4372: Set memory bandwidth limit for DISPC Date: Mon, 30 Sep 2019 11:54:50 +0300 Message-ID: <20190930085450.15874-1-tomi.valkeinen@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1569833705; bh=rf3p0mpknyXNKqDFr2VJXMEUyHQI3pZIFENgUY5jlAE=; h=From:To:CC:Subject:Date; b=NkkPiC0o4fC2jUMZn6VmpV+P8GX4hHTtt/mKPPGFslszY6B2nqQYfdGOmYryvKTLo /ZnoluhuhXP+kk/n6hy5s2OeBKnF9GsL7CX8guPsHlHbSztOq6Y0G4X5QjBnpZZMnc UBfLHm5K4PX/HOopNTwvR2FCkZgm7251cXkhOn2E= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, Peter Ujfalusi , Tomi Valkeinen , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Peter Ujfalusi 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 --- 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 848e2a8884e2..14bbc438055f 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -337,6 +337,8 @@ ti,hwmods = "dss_dispc"; clocks = <&disp_clk>; clock-names = "fck"; + + max-memory-bandwidth = <230000000>; }; rfbi: rfbi@4832a800 {