[PATCH v6 2/3] drm/fb-helper: call vga_remove_vgacon automatically.

From: Gerd Hoffmann
Date: Mon Feb 25 2019 - 03:30:26 EST


Add vga_remove_vgacon() call to
drm_fb_helper_remove_conflicting_pci_framebuffers().

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
include/drm/drm_fb_helper.h | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index bb9acea61369..286d58efed5d 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -36,6 +36,7 @@ struct drm_fb_helper;
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <linux/kgdb.h>
+#include <linux/vgaarb.h>

enum mode_set_atomic {
LEAVE_ATOMIC_MODE_SET,
@@ -642,11 +643,18 @@ drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev,
int resource_id,
const char *name)
{
+ int ret = 0;
+
+ /*
+ * WARNING: Apparently we must kick fbdev drivers before vgacon,
+ * otherwise the vga fbdev driver falls over.
+ */
#if IS_REACHABLE(CONFIG_FB)
- return remove_conflicting_pci_framebuffers(pdev, resource_id, name);
-#else
- return 0;
+ ret = remove_conflicting_pci_framebuffers(pdev, resource_id, name);
#endif
+ if (ret == 0)
+ ret = vga_remove_vgacon(pdev);
+ return ret;
}

#endif
--
2.9.3