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([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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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/mxsf= b_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. */ =20 +#include #include #include #include @@ -361,6 +362,15 @@ static int mxsfb_probe(struct platform_device *pdev) if (ret) goto err_free; =20 + /* + * Remove early framebuffers (ie. simplefb). The framebuffer can be + * located anywhere in RAM + */ + ret =3D 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 =3D drm_dev_register(drm, 0); if (ret) goto err_unload; --=20 2.43.0