diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 89164c553b2..84652ca3b16 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2098,15 +2098,10 @@ intel_dp_link_down(struct intel_dp *intel_dp) /* Changes to enable or select take place the vblank * after being written. */ - if (crtc == NULL) { - /* We can arrive here never having been attached - * to a CRTC, for instance, due to inheriting - * random state from the BIOS. - * - * If the pipe is not running, play safe and - * wait for the clocks to stabilise before - * continuing. - */ + if (WARN_ON(crtc == NULL)) { + /* We should never try to disable a port without a crtc + * attached. For paranoia keep the code around for a + * bit. */ POSTING_READ(intel_dp->output_reg); msleep(50); } else |