From patchwork Wed Feb 5 15:29:36 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dario Binacchi X-Patchwork-Id: 13961380 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 C65F9C02194 for ; Wed, 5 Feb 2025 15:29:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 22F1710E1A7; Wed, 5 Feb 2025 15:29:50 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="FLgt9jYK"; dkim-atps=neutral Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7288A10E1A7 for ; Wed, 5 Feb 2025 15:29:48 +0000 (UTC) Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-38dae70f5d9so1079327f8f.1 for ; Wed, 05 Feb 2025 07:29:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1738769387; x=1739374187; darn=lists.freedesktop.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=jC9QV0bJcgZgqHHH3SUMbf/vptPD4PQ0vRL1kkv5HIw=; b=FLgt9jYKPi2NfsN6CpP36+eamgxOj9iiepY2R2l/0hqZM7rFABB8bYN75PFeQXY1jB BEeIm3+2iML5MJMv5c7wbVvA3bZDtF6hyovXSKrQRnTx+QCDNx5tRTZ9CitQ39awA8LJ oMC2uoJF5hb25foYsh9NmENJCmGlOiDwIWh/M= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738769387; x=1739374187; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=jC9QV0bJcgZgqHHH3SUMbf/vptPD4PQ0vRL1kkv5HIw=; b=mx23X4f8Sn/qg31JJzVopmnPoLfuCTA7lW5Nq03msV93/8nuCDRf6BFdYWipWNL6Wv 2fplZ+8tAekCupZISBqEviBwZMCnNldDvTO3VtcZtETaI58DGIzCsiKz2q2Nonw/YsIS 4oDJ90oj5cUtTL0kGmF0iU9OGOByEeUlLvjuDEJ0NdQxrOnAZZwZOy4e2jSdIM9pmKzs rkDU+JVxqa20Cd+rgD/EgVTHEBQx7P4KNTUuGXSc75mJglXHPLRYmyZqP3N2FBcIDXwJ 0gjCdnPxxDiKQFO9ZhuKQKhD3nWx3InP2ueuGMN5uGt9Cf3OLdOJ0kI/u+Q0u0US5G4Q XBYA== X-Forwarded-Encrypted: i=1; AJvYcCVOICAtiDuguOcN7LGlW4MfWAMPW7opohsQOWKcGrN8JJqW740FuhEdLYlqeYAG0/axJEQNgqePHMI=@lists.freedesktop.org X-Gm-Message-State: AOJu0YyD0SubbVVGWqBiOILVKIX/iP/8FZjs9Vj0BIn3wFscKSSrOYp3 LL+ejxIauS9spDijIYeq0CbA8AW+F/ONuYF5lbWHsDJ68gt0hP/xmn3KgnBtuEo= X-Gm-Gg: ASbGncsasDwLqN3nknT37c0K641/ORviquT3CLSwvo4uaWkKajIpUgCj1n1Snnu03K8 LM/7He9ciOik2BxNl//P06ZFhOpFT9l0X+7fo43eTt0dJcOqaDj/e8cxP3ahDUr9dkvocWGSgjn jnky2ejGzbmSKRWfg8ic9dKf+D7CNp0E5Nycq2gyu9baE+W9SNosQArjp/r9d+3bhKA/KWB0DGn f83wwooVLaaywm7cfpu6Q9L312QY8H2WIWwpV1ohrXKwnJFXDi4AFurN3WQxd8PCXf/xPM9DxOh 3aSzv5Jj/TzgoCrAuWxfNk/Tz9hPImMlcOpsCXVIsMdiilSZjK1Jte1X X-Google-Smtp-Source: AGHT+IHUegMKoF3Uu+JDrnonpKTLGgAqfUbpAC5vcQvzwsUpc+CNMtcSoxp8JpOvJyhpCCI3zm2NQA== X-Received: by 2002:a05:6000:1868:b0:38a:4184:151a with SMTP id ffacd0b85a97d-38db48fdf85mr2428469f8f.37.1738769386468; Wed, 05 Feb 2025 07:29:46 -0800 (PST) Received: from dario-ThinkPad-T14s-Gen-2i.. ([2.196.42.151]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38daf999747sm4475386f8f.19.2025.02.05.07.29.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Feb 2025 07:29:46 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: linux-amarula@amarulasolutions.com, Dario Binacchi , Michael Trimarchi , Thomas Zimmermann , David Airlie , Fabio Estevam , Maarten Lankhorst , Marek Vasut , Maxime Ripard , Pengutronix Kernel Team , Sascha Hauer , Shawn Guo , Simona Vetter , Stefan Agner , dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3] drm/mxsfb: Remove generic DRM drivers in probe function Date: Wed, 5 Feb 2025 16:29:36 +0100 Message-ID: <20250205152942.954381-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Use aperture helpers to remove all generic graphics drivers before loading mxsfb. Makes mxsfb compatible with simpledrm. Co-developed-by: Michael Trimarchi Signed-off-by: Michael Trimarchi Signed-off-by: Dario Binacchi Reviewed-by: Thomas Zimmermann --- Changes in v3: - Add 'Reviewed-by' of Thomas Zimmermann Changes in v2: - Use aperture_remove_all_conflicting_devices() instead of drm_aperture_remove_framebuffers(). drivers/gpu/drm/mxsfb/mxsfb_drv.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index 59020862cf65..e5eb644b54ae 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -8,6 +8,7 @@ * Copyright (C) 2008 Embedded Alley Solutions, Inc All Rights Reserved. */ +#include #include #include #include @@ -361,6 +362,15 @@ static int mxsfb_probe(struct platform_device *pdev) if (ret) goto err_free; + /* + * Remove early framebuffers (ie. simplefb). The framebuffer can be + * located anywhere in RAM + */ + ret = aperture_remove_all_conflicting_devices(mxsfb_driver.name); + if (ret) + return dev_err_probe(&pdev->dev, ret, + "can't kick out existing framebuffers\n"); + ret = drm_dev_register(drm, 0); if (ret) goto err_unload;