linux-kernel - [PATCH 2/2] drm/tidss: Remove early fb

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Message-Id: <20250416-tidss-splash-v1-2-4ff396eb5008@ideasonboard.com>
Date: Wed, 16 Apr 2025 14:06:30 +0300
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: Jyri Sarha <jyri.sarha@....fi>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>
Cc: dri-devel@...ts.freedesktop.org, 
 Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
 linux-kernel@...r.kernel.org, Devarsh Thakkar <devarsht@...com>, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH 2/2] drm/tidss: Remove early fb

Add a call to drm_aperture_remove_framebuffers() to drop the possible
early fb (simplefb).

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
 drivers/gpu/drm/tidss/tidss_drv.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/tidss/tidss_drv.c b/drivers/gpu/drm/tidss/tidss_drv.c
index 21f2358790b4..17df0583710c 100644
--- a/drivers/gpu/drm/tidss/tidss_drv.c
+++ b/drivers/gpu/drm/tidss/tidss_drv.c
@@ -8,6 +8,7 @@
 #include <linux/of.h>
 #include <linux/module.h>
 #include <linux/pm_runtime.h>
+#include <linux/aperture.h>
 
 #include <drm/clients/drm_client_setup.h>
 #include <drm/drm_atomic.h>
@@ -207,12 +208,20 @@ static int tidss_probe(struct platform_device *pdev)
 		goto err_irq_uninstall;
 	}
 
+	/* Remove possible early fb before setting up the fbdev */
+	ret = aperture_remove_all_conflicting_devices(tidss_driver.name);
+	if (ret)
+		goto err_drm_dev_unreg;
+
 	drm_client_setup(ddev, NULL);
 
 	dev_dbg(dev, "%s done\n", __func__);
 
 	return 0;
 
+err_drm_dev_unreg:
+	drm_dev_unregister(ddev);
+
 err_irq_uninstall:
 	tidss_irq_uninstall(ddev);
 

-- 
2.43.0