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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS 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 90BADC433DF for ; Thu, 28 May 2020 11:06:32 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 5C67B208A7 for ; Thu, 28 May 2020 11:06:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="g8gOSdU3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C67B208A7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60490 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jeGMp-0007tI-Hc for qemu-devel@archiver.kernel.org; Thu, 28 May 2020 07:06:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49748) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeGLE-0005fo-LY for qemu-devel@nongnu.org; Thu, 28 May 2020 07:04:52 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:28200 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jeGLC-0006cA-BN for qemu-devel@nongnu.org; Thu, 28 May 2020 07:04:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590663889; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pF5xuhSu7N48wGad8zUSYAG+GWm/0fg9fso5kGdrpCg=; b=g8gOSdU3gFeHSH/W3byE236MRlX4B29FfkpRRjkFUcNIglr9DIj30pCoEZDV/qfvkyTmHh S887uZpRx9oGqcMFWBNo34dDtSUDHqy3h3S7JAamKyzQ+TeMHkiLzfcVoxLzu2UW/RnxTJ KWUdC7gTQRBVZ8Jh8A6kNfa4UfJcm/Y= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-167-w1YPp1TZOt2UySDzdCjE_A-1; Thu, 28 May 2020 07:04:48 -0400 X-MC-Unique: w1YPp1TZOt2UySDzdCjE_A-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AC6AB835B41; Thu, 28 May 2020 11:04:46 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-112-32.ams2.redhat.com [10.36.112.32]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 392AF7A8AA; Thu, 28 May 2020 11:04:46 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id BB61B11386A3; Thu, 28 May 2020 13:04:44 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH v2 02/24] display/xlnx_dp: Fix to realize "i2c-ddc" and "aux-to-i2c-bridge" Date: Thu, 28 May 2020 13:04:22 +0200 Message-Id: <20200528110444.20456-3-armbru@redhat.com> In-Reply-To: <20200528110444.20456-1-armbru@redhat.com> References: <20200528110444.20456-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=207.211.31.81; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/28 02:50:32 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Edgar E . Iglesias" , Peter Maydell , berrange@redhat.com, ehabkost@redhat.com, Alistair Francis , qemu-arm@nongnu.org, Alistair Francis , pbonzini@redhat.com, "Edgar E. Iglesias" , KONRAD Frederic Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" xlnx_dp_init() creates these two devices, but they're never realized. Affects machine xlnx-zcu102. In theory, a device becomes real only on realize. In practice, the transition from unreal to real is a fuzzy one. The work to make a device real can be spread between realize methods (fine), instance_init methods (wrong), and board code wiring up the device (fine as long as it effectively happens on realize). Depending on what exactly is done where, a device can work even when we neglect to realize it. These two appear to work. Nevertheless, it's a clear misuse of the interface. Even when it works today (more or less by chance), it can break tomorrow. Fix by realizing them in xlnx_dp_realize(). Fixes: 58ac482a66de09a7590f705e53fc6a3fb8a055e8 Cc: KONRAD Frederic Cc: Alistair Francis Cc: "Edgar E. Iglesias" Cc: Peter Maydell Cc: qemu-arm@nongnu.org Signed-off-by: Markus Armbruster Reviewed-by: Edgar E. Iglesias Reviewed-by: Alistair Francis --- hw/display/xlnx_dp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c index 3e5fb44e06..bdc229a51e 100644 --- a/hw/display/xlnx_dp.c +++ b/hw/display/xlnx_dp.c @@ -1264,9 +1264,13 @@ static void xlnx_dp_realize(DeviceState *dev, Error **errp) DisplaySurface *surface; struct audsettings as; + qdev_init_nofail(DEVICE(s->aux_bus->bridge)); + qdev_init_nofail(DEVICE(s->dpcd)); aux_map_slave(AUX_SLAVE(s->dpcd), 0x0000); + qdev_init_nofail(DEVICE(s->edid)); + s->console = graphic_console_init(dev, 0, &xlnx_dp_gfx_ops, s); surface = qemu_console_surface(s->console); xlnx_dpdma_set_host_data_location(s->dpdma, DP_GRAPHIC_DMA_CHANNEL, -- 2.21.3