From patchwork Wed Dec 15 00:59:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 12677189 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 8310CC433EF for ; Wed, 15 Dec 2021 01:02:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2615D10E1A6; Wed, 15 Dec 2021 01:01:51 +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 DAF9F10E155 for ; Wed, 15 Dec 2021 01:01:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639530075; 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=egd8kr8D5VITAG77xs5mGgXddS6XZa0CNEo6AVoMvtE=; b=OEm+QfXuq3p/bwn96XufuozggecGUY2UqZS5sWnKKyt5BD0bj/Nyb+s3u8wQC08qymdYE9 OWBaj9GPNHhDH2Rkk0LWMAEATE2smRavltO3cPIk/mkT6PNm4/ol8fZ+x0uzlG0VDtgOX1 pvFmxmiZw199+G1U7bA9Rq+xdgIsFL4= 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-336-N--SMp5lM8u7laQ8v4Idzg-1; Tue, 14 Dec 2021 20:01:13 -0500 X-MC-Unique: N--SMp5lM8u7laQ8v4Idzg-1 Received: by mail-wr1-f72.google.com with SMTP id m12-20020adff38c000000b001a0cb286eacso1154097wro.9 for ; Tue, 14 Dec 2021 17:01:13 -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=egd8kr8D5VITAG77xs5mGgXddS6XZa0CNEo6AVoMvtE=; b=sNG4GDMsgVmCveVrsWp1QwwSMQs160xMIcezBxuYxGT+0mfXzv0pGohFwUlT+FEmlW W8/7H7ZubnUQOrzRM6fgQQs+diHGKZ1CfUoJv34MfLLiXtywjeMCRvreCgAZQDhyaBDf TyJQJFqIIDEKZ214SDh3JHseXXTdGmvTK6OZul4UjeoSwMb5qucv2pc2fOQE0wWf6gmW LkJS9BCOYW5/A2COohtyIqjE0iAcRaSwxc+YcHPxPy+pNRvR1EWA1CnOTeJpZmURKNQz yVfRNnoB84oyIoGvmTV28b32hFlk4gUeNCc12NbT7+htUzGPTPC0my3lrosnQconU+aJ R5jA== X-Gm-Message-State: AOAM531QXisYXBzXuJFdxmMdFGS41b4M3sODpv5sigQRKsz+qeof+VIV ToOpj9IVTsdpNzApmC6CzIel8LFFIkk5UDifIaZL1iqBS6dHsdhQiNpXbWO1fW2PWxC4LVSEfiO UXJmEsuG0z8jbsVsefu5qWf5k9pjh X-Received: by 2002:a5d:50c7:: with SMTP id f7mr2078110wrt.327.1639530072721; Tue, 14 Dec 2021 17:01:12 -0800 (PST) X-Google-Smtp-Source: ABdhPJz9M4WdmFvo/zg8Ix3tcksV20w3c47J2dT2pX0KN0YMYhw/R4HIWcodbzHQHCqkqo3USOkChA== X-Received: by 2002:a5d:50c7:: with SMTP id f7mr2078097wrt.327.1639530072490; Tue, 14 Dec 2021 17:01:12 -0800 (PST) Received: from minerva.home ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id o64sm334543wme.28.2021.12.14.17.01.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Dec 2021 17:01:12 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 26/60] drm: mxsfb: Add support for the nomodeset kernel parameter Date: Wed, 15 Dec 2021 01:59:34 +0100 Message-Id: <20211215010008.2545520-27-javierm@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211215010008.2545520-1-javierm@redhat.com> References: <20211215010008.2545520-1-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 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: Marek Vasut , Javier Martinez Canillas 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 systewm 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 --- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 86d78634a979..1359fc99c6f0 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -342,6 +342,9 @@ static int mxsfb_probe(struct platform_device *pdev) of_match_device(mxsfb_dt_ids, &pdev->dev); int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + if (!pdev->dev.of_node) return -ENODEV;