Op 27-06-17 om 16:59 schreef Daniel Vetter:
From: Thierry Reding treding@nvidia.com
Move the modeset locking from drivers into FB helpers.
v2: Also handle intel_connector_add_to_fbdev.
Tested-by: John Stultz john.stultz@linaro.org Signed-off-by: Thierry Reding treding@nvidia.com (v1) Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch
drivers/gpu/drm/drm_fb_helper.c | 40 +++++++++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_dp_mst.c | 6 ----- drivers/gpu/drm/radeon/radeon_dp_mst.c | 7 ------ 3 files changed, 34 insertions(+), 19 deletions(-)
I know we suck at DP-MST. But I fear the unregister leaves open a race with mst_port being unset without connection_mutex..
best_encoder() and mode_valid() appear to use it. It's probably harmless and I have no good solution, so maybe just annotate it in the patch? Might also affect i915_hpd_poll_init_work, though I think the race in itself is harmless.