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drm/i915: Kick fbdev before vgacon 

It's magic, but it seems to work.

This fixes a regression introduced in

commit 1bb9e632a0
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Jul 8 10:02:43 2014 +0200

    drm/i915: Only unbind vgacon, not other console drivers

My best guess is that the vga fbdev driver falls over if we rip out
parts of vgacon. Hooray.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82439
Cc: stable@vger.kernel.org (v3.16+)
Reported-and-tested-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Daniel Vetter 2014-11-14 10:09:49 +01:00 committed by Jani Nikula
parent 2208d655a9
commit 0485c9dc24
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1670,17 +1670,19 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
goto out_regs;
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
ret = i915_kick_out_vgacon(dev_priv);
if (ret) {
DRM_ERROR("failed to remove conflicting VGA console\n");
goto out_gtt;
}
/* WARNING: Apparently we must kick fbdev drivers before vgacon,
* otherwise the vga fbdev driver falls over. */
ret = i915_kick_out_firmware_fb(dev_priv);
if (ret) {
DRM_ERROR("failed to remove conflicting framebuffer drivers\n");
goto out_gtt;
}
ret = i915_kick_out_vgacon(dev_priv);
if (ret) {
DRM_ERROR("failed to remove conflicting VGA console\n");
goto out_gtt;
}
}
pci_set_master(dev->pdev);