From patchwork Wed Nov 15 14:39:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Airlie X-Patchwork-Id: 13456841 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 74BEBC54F88 for ; Wed, 15 Nov 2023 14:39:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D956E10E033; Wed, 15 Nov 2023 14:39:44 +0000 (UTC) Received: from us-smtp-delivery-44.mimecast.com (us-smtp-delivery-44.mimecast.com [205.139.111.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id 965F610E54E for ; Wed, 15 Nov 2023 14:39:42 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-70-LmN1Ew95OaCIF7_Q0vhODw-1; Wed, 15 Nov 2023 09:39:40 -0500 X-MC-Unique: LmN1Ew95OaCIF7_Q0vhODw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C7FFF867900; Wed, 15 Nov 2023 14:39:39 +0000 (UTC) Received: from ultimate.redhat.com (unknown [10.64.136.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id 42BA22166B28; Wed, 15 Nov 2023 14:39:36 +0000 (UTC) From: airlied@gmail.com To: dri-devel@lists.freedesktop.org Subject: [PATCH] nouveau: don't fail driver load if no display hw present. Date: Thu, 16 Nov 2023 00:39:33 +1000 Message-ID: <20231115143933.261287-1-airlied@gmail.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: gmail.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: nouveau@lists.freedesktop.org, Dave Airlie Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Dave Airlie If we get back ENODEV don't fail load. There are nvidia devices that don't have display blocks and the driver should work on those. Fixes: 15740541e8f0 ("drm/nouveau/devinit/tu102-: prepare for GSP-RM") Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/270 Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_display.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index d8c92521226d9..f28f9a8574586 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -726,6 +726,11 @@ nouveau_display_create(struct drm_device *dev) if (nouveau_modeset != 2) { ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0, &disp->disp); + /* no display hw */ + if (ret == -ENODEV) { + ret = 0; + goto disp_create_err; + } if (!ret && (disp->disp.outp_mask || drm->vbios.dcb.entries)) { nouveau_display_create_properties(dev);