From nobody Tue Dec 2 01:51:39 2025 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 692B72D5C7A for ; Fri, 21 Nov 2025 15:06:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763737590; cv=none; b=oL2nTDARGQC3TjgcHcB0IFO8UjOn0nKcR7tkquaNXz88HVtO8VJDaWI8xlhH+BLRoGBA5OYg/uab493veKhEoxOoJ6ZbuH+9Zrh6nNQjUdUOyL2d5h0Tkukba2mrNZkQhtt4wFxvRyXWpzHytAVVfu8wJAkyJCubeoRhVfeJMvQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763737590; c=relaxed/simple; bh=//80TLvazu3o6H3NRSjGjho+1pdoyVKmxiXPeB2mjFI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=C5Obio6MnU4MKQsw9+DRsalgVUU+1M/7GKkbLulJAlR9w0EnXd2de+cuq8dcqdkZO3TtQGtQKZclyPyIbWqEBqcl4EORZ1d/sW0D9wqiyZdD2xi911UWM8PZIruo1NmyC8jcIxUbxkujdeE7Fet/O/MFu1AIiyS6/mGu5jckYuE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=kwceQAEz; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="kwceQAEz" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1763737588; x=1795273588; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=//80TLvazu3o6H3NRSjGjho+1pdoyVKmxiXPeB2mjFI=; b=kwceQAEzXEWWGnccmLM2W27fsNOG+GflmihfS/NhORecGMFIHdu4a4qF ozNkhnKyxtjbutoJtGvfg+tv4gHxwUJxuG+mlfZcD1JX9jOm79zSxdidO b3UPM1v0heHRAu63YN4Z9bXVpbjS6VG0cxSjEAIqPXl8o0tML93JZv56a SRv3zJiHQPvA1FomoZxB6cgdUv6m8FPxNM+dymtoKdlWi/f+R+SFTFg0d P4jX1JBmY7Uf1FMqKHMe97CnEPOXdV0Ql5dqHo248ZilohTEu2hGIXOAb 6Y4+8rtyThSmmDxn4zekS1sBYpIqZ6XvLrFILb5u5Fap4KY3LYNUWA+QU g==; X-CSE-ConnectionGUID: Ubo8wtofT1S9f5fCNZ+Rrw== X-CSE-MsgGUID: gZ3q7jPvQZ2UJm2tgreohw== X-IronPort-AV: E=Sophos;i="6.20,216,1758610800"; d="scan'208";a="56053149" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 21 Nov 2025 08:06:25 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Fri, 21 Nov 2025 08:06:15 -0700 Received: from [127.0.0.1] (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Fri, 21 Nov 2025 08:06:10 -0700 From: Ludovic Desroches Date: Fri, 21 Nov 2025 16:04:34 +0100 Subject: [PATCH 2/8] drm/atmel-hlcdc: add support for the nomodeset kernel parameter Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20251121-lcd_cleanup_mainline-v1-2-2587e6fe4d67@microchip.com> References: <20251121-lcd_cleanup_mainline-v1-0-2587e6fe4d67@microchip.com> In-Reply-To: <20251121-lcd_cleanup_mainline-v1-0-2587e6fe4d67@microchip.com> To: Manikandan Muralidharan , "Dharma Balasubiramani" , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea CC: , , , Ludovic Desroches X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1062; i=ludovic.desroches@microchip.com; h=from:subject:message-id; bh=//80TLvazu3o6H3NRSjGjho+1pdoyVKmxiXPeB2mjFI=; b=owEBbQKS/ZANAwAKAT455hP3e2QtAcsmYgBpIH/Wx435lU4YdoP1U1wLYVVkjIgThXEiZrDNh hJx10HGQMqJAjMEAAEKAB0WIQQAMEvJiWmsW41tNU0+OeYT93tkLQUCaSB/1gAKCRA+OeYT93tk LVmZD/9xc9Spy6hS+6PVIpR2aBWpK1pbeCzt7GdY7RPvUtQJ50ErAwpoAk6gw9QfYTfdr7I7RhP Horf8ZT+0UvYNnN/lsZkLzNfCunuHzqgCxuYddEO3L9d1kTetlwruZbu2x3Wgw438cAu2GlIO/s FsrDGyWo274YN6t6N2smyNmeBS/XqzuAGtRx0wrVLnqL6bshf2LqTsgw5TqKmQivoj6H6aSHMQS ypTwk6aRN4iCjXLikwHkyj3yH4qgrFlvlp00fPRvtt/sxVLV4imFOIHLPcVL8LIQ1NG5YjAyx8L 3d33IPZUak1i5NQn+mFOS9Swwt4oEtubB1tYgaVZX+UPSCjbHcnd8fkaCMKVfoB0CdgLV3oxgcX V9j5Z2QdxCFRqESCWpA708gs+PV3VjFYsLGI8vR/+8qotLvm0BWh/0CUChflGi5An0l5GtlSEwd N0ApHTQejTfp9c/KpoINc/r4rIGqcUMC+ItGZB9I0YgL5ngPqWary4avm63cJ/WdS249i83y60c H0zvKpFsfdTJ9ULifiqevM3O2owjGZM4JXywM+oE0VxCHBsVVLR+CX/ueF7cg2edvNOWH0rQZ4Y u/qxasf2VWZJM1vUI/UHUbKNjc92RDd4LL8actkbkY5Avx0OQzMC79o5XiOyjCqgKXWjczi+AWh kERr9QPgdxRkgAA== X-Developer-Key: i=ludovic.desroches@microchip.com; a=openpgp; fpr=665BAA7297BE089A28B77696E332995F09DCC11A According to Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. Signed-off-by: Ludovic Desroches Reviewed-by: Dharma Balasubiramani Reviewed-by: Manikandan Muralidharan --- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm= /atmel-hlcdc/atmel_hlcdc_dc.c index 8ed029381c555db10d596efc8d52753c47767633..8ff582a394794aacf84f9e23fd5= 9f123445926a3 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -858,6 +858,9 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_dev= ice *pdev) struct drm_device *ddev; int ret; =20 + if (drm_firmware_drivers_only()) + return -ENODEV; + dc =3D devm_drm_dev_alloc(&pdev->dev, &atmel_hlcdc_dc_driver, struct atme= l_hlcdc_dc, dev); if (IS_ERR(dc)) return PTR_ERR(dc); --=20 2.51.0