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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 12C0BC3F2D7 for ; Tue, 3 Mar 2020 18:37:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E02082072D for ; Tue, 3 Mar 2020 18:37:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730091AbgCCShV (ORCPT ); Tue, 3 Mar 2020 13:37:21 -0500 Received: from mx2.suse.de ([195.135.220.15]:54560 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725796AbgCCShV (ORCPT ); Tue, 3 Mar 2020 13:37:21 -0500 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 79D8FAD2B; Tue, 3 Mar 2020 18:37:19 +0000 (UTC) Message-ID: <03fcb1e2bc7f3ff389b6dfbf3964e159a93ae835.camel@suse.de> Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D From: Nicolas Saenz Julienne To: Stefan Wahren , Rob Herring , Mark Rutland , Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Eric Anholt Cc: devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, wahrenst@gmx.net Date: Tue, 03 Mar 2020 19:37:17 +0100 In-Reply-To: <736f0c59-352b-03b2-f77f-bfc22171b3fb@i2se.com> References: <20200303173217.3987-1-nsaenzjulienne@suse.de> <736f0c59-352b-03b2-f77f-bfc22171b3fb@i2se.com> Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="=-tHP4KAwhH9LsysulVrwU" User-Agent: Evolution 3.34.4 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-tHP4KAwhH9LsysulVrwU Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2020-03-03 at 19:17 +0100, Stefan Wahren wrote: > Hi Nicolas, >=20 > Am 03.03.20 um 18:32 schrieb Nicolas Saenz Julienne: > > The register based driver turned out to be unstable, specially on RPi3a= + > > but not limited to it. While a fix is being worked on, we roll back to > > using firmware based scheme. > >=20 > > Fixes: e1dc2b2e1bef ("ARM: bcm283x: Switch V3D over to using the PM dri= ver > > instead of firmware") > > Signed-off-by: Nicolas Saenz Julienne > > --- > >=20 > > See https://github.com/raspberrypi/linux/issues/3046 for more reference= . > > Note: I tested this on RPi3b, RPi3a+ and RPi2b. >=20 > as i already wrote this prevent X to start on current Raspbian on my > Raspberry Pi 3A+ (multi_v7_defconfig, no u-boot). We must be careful here= . >=20 > I will take a look at the debug UART. Maybe there are more helpful > information. It seems we're seeing different things, I tested this on raspbian (multi_v7_defconfig) and on arm64. I'll try again from scratch tomorrow. --=-tHP4KAwhH9LsysulVrwU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEErOkkGDHCg2EbPcGjlfZmHno8x/4FAl5eo90ACgkQlfZmHno8 x/5ClAf/Y6uayh0bvAB8AF2/oSO5SZiz1HYrfdlv6YrywX0n/5HiTLxo6Lb774cF mjqltChaF50e0bgMBPtLi6e4AMookHQ3U4c3tuRAQiuFYqjKLSMPAIg3XHNQp4Ou QE1MRfaEtE9IgUzMWco3DNvWvY3kdpM/72D8irbh99xYLdebH/Z/Q1sNByOrgi9e uc4hUQKrEKwlKK7T3sPIeM7O2N9tPJ65c4flgEByrqvBUQZK4mEwL5LktvT28yL7 tPWn3xWGf53oJORFG9qQ8M1943FLrn4RrRrwPq5AA+tpO3mhYYsbDt85X5ChfL2J pWQP1x6BbFFKCbxpemYLIGiMQQcllw== =LF3R -----END PGP SIGNATURE----- --=-tHP4KAwhH9LsysulVrwU--