[08/10] drm/mxsfb: Remove generic DRM drivers in probe function
diff mbox series

Message ID 20240903153157.918185-8-dario.binacchi@amarulasolutions.com
State New
Headers show
Series
  • [01/10] pmdomain: core: fix "sd_count" field setting
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Commit Message

Dario Binacchi Sept. 3, 2024, 3:31 p.m. UTC 
Use aperture helpers to remove all generic graphics drivers before
loading mxsfb. Makes mxsfb compatible with simpledrm.

Co-Developed-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
---
 drivers/gpu/drm/mxsfb/mxsfb_drv.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

Patch
diff mbox series 

diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
index cb5ce4e81fc7..1d8dcfd629e1 100644
--- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
+++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
@@ -17,6 +17,7 @@ 
 #include <linux/property.h>
 #include <linux/pm_runtime.h>
 
+#include <drm/drm_aperture.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_bridge.h>
 #include <drm/drm_connector.h>
@@ -352,6 +353,15 @@  static int mxsfb_probe(struct platform_device *pdev)
 	struct drm_device *drm;
 	int ret;
 
+	/*
+	 * Remove early framebuffers (ie. simplefb). The framebuffer can be
+	 * located anywhere in RAM
+	 */
+	ret = drm_aperture_remove_framebuffers(&mxsfb_driver);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret,
+				     "can't kick out existing framebuffers\n");
+
 	drm = drm_dev_alloc(&mxsfb_driver, &pdev->dev);
 	if (IS_ERR(drm))
 		return PTR_ERR(drm);