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 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 6BE3AC4332F for ; Fri, 17 Dec 2021 00:39:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 199F710E245; Fri, 17 Dec 2021 00:38:47 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 43EBC10E2F5 for ; Fri, 17 Dec 2021 00:38:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639701515; 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=LS45ptuKLtucyzrI9aH/fv6UqLJgOvCJlOd2PAEqfE8=; b=SfqwF8GE49BXYLj7tN3oDZLb5U9JM5XR3JZj3YiFOLTGqikT9mEtTc7tC/4ceJddR7v34B +gJcBWIgYJciOzxm1b8Kc2feeGUAhD1/vJdchogUFcfp0sMpWyPv3Hn7nJQS63WCI57sSx DKhqNzrhm9PjZYVY4o5A2d2StZ2ChSE= Received: from mail-wr1-f72.google.com (mail-wr1-f72.google.com [209.85.221.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-290-TK5IwUQmPvCy61vxPvBRAw-1; Thu, 16 Dec 2021 19:38:34 -0500 X-MC-Unique: TK5IwUQmPvCy61vxPvBRAw-1 Received: by mail-wr1-f72.google.com with SMTP id k11-20020adfc70b000000b001a2333d9406so148820wrg.3 for ; Thu, 16 Dec 2021 16:38:33 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=LS45ptuKLtucyzrI9aH/fv6UqLJgOvCJlOd2PAEqfE8=; b=alYmQEqWyVn2r4Q5D5lYgSPJWuUnJC9eSPanMQ0Mwn56W3Tf1jpDNXEj1O/kH1CcHt Rs7hlPJAQ0U2yGeNCdKeHpeLM5ct8oGXTZfYaziV3l9Yb++pnA2jJZYPuFDDH6u9QLOp Op7iSS8ipLQ0PMR7mh3oxdbtRP6dUL8QWfrddVoFATgKNzzHtUvBl/StFq4zSPv+ONW7 PeJl+BVZGu5NSiyB54JXO+BhTh2RFbVO1r2usb+6HSd/BZfFM6EGtlWeajl47vOJ/2tH Wy+hwon4qZtzTFhotYbmORTv8oyyav8oXcgnU4G14LzqznZ11D2RwkTz1TWYbovQrl7i RO6Q== X-Gm-Message-State: AOAM532ZUFVo2Mr4sVilSzkAWBWO5Uy9RJtDB2chEdx2dT1JbaaYhmbT 77Huij/it4gS/25U1c62pkVG6sfinZ+GGj7DsBhMdJSB/jYCzs4RWt5EG8rtI86kVd+mbhErPjj 0BwMQ3xgDXc5XR6vMK9IQ5flb5Nju X-Received: by 2002:adf:ed83:: with SMTP id c3mr369003wro.169.1639701512790; Thu, 16 Dec 2021 16:38:32 -0800 (PST) X-Google-Smtp-Source: ABdhPJzgNRxmXpv8ar/HlM4TfNJSibrarj6nNRlhhEoWvFkpXvNFl1qNA/H5nvze7GA/dpw0kCtyVQ== X-Received: by 2002:adf:ed83:: with SMTP id c3mr368998wro.169.1639701512577; Thu, 16 Dec 2021 16:38:32 -0800 (PST) Received: from minerva.home ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id bg12sm7368433wmb.5.2021.12.16.16.38.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Dec 2021 16:38:32 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 36/37] drm/tilcdc: Add support for the nomodeset kernel parameter Date: Fri, 17 Dec 2021 01:37:51 +0100 Message-Id: <20211217003752.3946210-37-javierm@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211217003752.3946210-1-javierm@redhat.com> References: <20211217003752.3946210-1-javierm@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=javierm@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" 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: Jyri Sarha , Javier Martinez Canillas , Tomi Valkeinen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas --- (no changes since v1) drivers/gpu/drm/tilcdc/tilcdc_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index cc567c87057d..eee3c447fbac 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -604,6 +604,9 @@ static struct platform_driver tilcdc_platform_driver = { static int __init tilcdc_drm_init(void) { + if (drm_firmware_drivers_only()) + return -ENODEV; + DBG("init"); tilcdc_panel_init(); return platform_driver_register(&tilcdc_platform_driver); -- 2.33.1