From patchwork Wed Mar 8 09:19:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 9610625 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B3868604DD for ; Wed, 8 Mar 2017 09:20:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C096028552 for ; Wed, 8 Mar 2017 09:20:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B532928576; Wed, 8 Mar 2017 09:20:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 82CBD28552 for ; Wed, 8 Mar 2017 09:20:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0911B6E337; Wed, 8 Mar 2017 09:20:08 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id 546316E86B for ; Wed, 8 Mar 2017 09:20:00 +0000 (UTC) Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D749DC04B95F; Wed, 8 Mar 2017 09:19:59 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-116-95.ams2.redhat.com [10.36.116.95]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v289JwI8028737; Wed, 8 Mar 2017 04:19:58 -0500 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id EB01680B5A; Wed, 8 Mar 2017 10:19:54 +0100 (CET) From: Gerd Hoffmann To: linux-rpi-kernel@lists.infradead.org Subject: [PATCH 3/4] qxl: read monitors config at boot Date: Wed, 8 Mar 2017 10:19:06 +0100 Message-Id: <1488964751-22763-7-git-send-email-kraxel@redhat.com> In-Reply-To: <1488964751-22763-1-git-send-email-kraxel@redhat.com> References: <1488964751-22763-1-git-send-email-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Wed, 08 Mar 2017 09:20:00 +0000 (UTC) Cc: mark.rutland@arm.com, ulf.hansson@linaro.org, catalin.marinas@arm.com, will.deacon@arm.com, "open list:DRM DRIVERS" , "open list:DRM DRIVER FOR QXL VIRTUAL GPU" , Gerd Hoffmann , stefan.wahren@i2se.com, f.fainelli@gmail.com, lee@kernel.org, linux@armlinux.org.uk, bcm-kernel-feedback-list@broadcom.com, Dave Airlie , devicetree@vger.kernel.org, rjui@broadcom.com, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, sbranden@broadcom.com, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Try to read the client monitors config at driver load time, even without explicit notification. So in case that info was filled before the driver loaded and we've missed the notifications because of that the settings will still be used. With that place we now have to take care to properly handle a empty client monitors config, so we don't trip over an uninitialized client monitors config. Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/qxl/qxl_display.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 2b99496..cf99ace 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -81,6 +81,10 @@ static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) qdev->rom->client_monitors_config_crc); return MONITORS_CONFIG_BAD_CRC; } + if (!num_monitors) { + DRM_DEBUG_KMS("no client monitors configured\n"); + return status; + } if (num_monitors > qdev->monitors_config->max_allowed) { DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", qdev->monitors_config->max_allowed, num_monitors); @@ -1192,6 +1196,7 @@ int qxl_modeset_init(struct qxl_device *qdev) qdev_output_init(&qdev->ddev, i); } + qxl_display_read_client_monitors_config(qdev); qdev->mode_info.mode_config_initialized = true; drm_mode_config_reset(&qdev->ddev);