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=-11.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 9DB8FC3F2D2 for ; Fri, 28 Feb 2020 13:10:12 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 690462067C for ; Fri, 28 Feb 2020 13:10:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YsdeuB2E" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 690462067C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: MIME-Version:References:In-Reply-To:Date:To:From:Subject:Message-ID:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=I5u6N86h7407cPZbQA+dYXkYuqLcBNve5xHltqbTQj8=; b=YsdeuB2EiGAwfzFqC2El9EC4J WNuQyMYygA/6FZfzzI0gLNR8OLrZGOFvbrVy+6NtHc4HLAkxrLc5+yDl6b8pIvZ8srT8S6HU3lz3L /KuZynEXAWu8DXbx3cdQHPi3p4GrXAGfjZDLM9h3jCYZaHJjF+7No8dNNgSFMpe7R92q/SyBd7mv0 NlW8T1DFTVN7qWpHpIScaAptj5/K6UFlkaQDTwClHxY9bO1UT22yGXujk4iQcrlTWzVpcuE7+cDhg 0C38O2NHhorOpG+sh16KWLUCU+ymfKNnr9ZHF3rhKD+gzMQYbddLA1GOVi4FB6w4UfCGkm2VWo7/u Mv2cAA8bg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7fP9-0001qT-9g; Fri, 28 Feb 2020 13:10:11 +0000 Received: from mx2.suse.de ([195.135.220.15]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j7fP5-00015T-4Z; Fri, 28 Feb 2020 13:10:09 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 9B753AD14; Fri, 28 Feb 2020 13:10:02 +0000 (UTC) Message-ID: Subject: Re: vc4 on rpi3 A+ From: Nicolas Saenz Julienne To: Sergey Suloev , linux-rpi-kernel@lists.infradead.org, Stefan Wahren Date: Fri, 28 Feb 2020 14:09:59 +0100 In-Reply-To: <8b353626-f62a-2aff-96b4-91712ed36095@orpaltech.com> References: <8b353626-f62a-2aff-96b4-91712ed36095@orpaltech.com> User-Agent: Evolution 3.34.4 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200228_051007_495272_7C1640AB X-CRM114-Status: GOOD ( 17.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Noralf =?ISO-8859-1?Q?Tr=F8nnes?= , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel Content-Type: multipart/mixed; boundary="===============2615522801503814539==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============2615522801503814539== Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-iHP+2GMv7hO7VSi+MOY4" --=-iHP+2GMv7hO7VSi+MOY4 Content-Type: multipart/mixed; boundary="=-xARFLKywRE19QhV/jOVz" --=-xARFLKywRE19QhV/jOVz Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Sergey, On Thu, 2020-02-20 at 11:21 +0300, Sergey Suloev wrote: > Hello, guys, >=20 > could anyone clarify the status of vc4 drm support on RPI 3A+ ? >=20 > I tried to build kernel 5.5 and 5.6-rc2 in 32bit and aarch64=20 > configurations with VC4 turned ON but both unsuccessful - vc4 drm driver= =20 > is listed in memory but not working and not producing any typical DRM=20 > log output. I managed to get my hands on a rpi3a+ and reproduce the issue. 'dmesg -lerr= ' outputs this: bcm2835-power: Timeout waiting for grafx power OK This is a known issue, see https://github.com/raspberrypi/linux/issues/3046= . I attached a device-tree patch in case you want to verify it fixes the issu= e on your board. @Stefan I guess I'm going to have to revert the pm patch, any comments befo= re I do? 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