diff options
| author |   Keith Packard <keithp@keithp.com> | 2011-08-12 17:05:54 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-08-15 12:10:26 -0700 |
| commit | c3613de92ebea302137d21d8938421c3f88d8741 (patch) | |
| tree | c16dc4a75c6ea2877dcd6be6e1a6ab7393d6dcd0 /drivers/gpu | |
| parent | Not all systems expose a firmware or platform mechanism for changing the backlight intensity on i915, so add native driver support. (diff) | |
| download | linux-dev-c3613de92ebea302137d21d8938421c3f88d8741.tar.xz linux-dev-c3613de92ebea302137d21d8938421c3f88d8741.zip | |
drm/i915: Can't do accurate vblank timestamps with UMS
Disable this feature when KMS is not running by setting the
driver->get_vblank_timestamp function pointer to NULL.
Signed-off-by: Keith Packard <keithp@keithp.com>
Tested-by: Justin P. Mattock <justinmattock@gmail.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 02f96fd0d52d..9cbb0cd8f46a 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2058,8 +2058,10 @@ void intel_irq_init(struct drm_device *dev) dev->driver->get_vblank_counter = gm45_get_vblank_counter; } - - dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp; + if (drm_core_check_feature(dev, DRIVER_MODESET)) + dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp; + else + dev->driver->get_vblank_timestamp = NULL; dev->driver->get_scanout_position = i915_get_crtc_scanoutpos; if (IS_IVYBRIDGE(dev)) { |