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drm/atomic: use drm_crtc_vblank_waitqueue()

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We have drm_crtc_vblank_waitqueue() to get the wait_queue_head_t pointer
for a vblank. Use it instead of poking at dev->vblank[] directly.

Due to the macro maze of wait_event_timeout() that uses the address-of
operator on the argument, we have to pass it in with the indirection
operator.

Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patch.msgid.link/1097348197acea9110da8baebbbc189890d01660.1762513240.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula
2025-11-07 13:04:56 +02:00
parent d930ffa5d6
commit 23ab3cb314
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/drm_atomic_helper.c
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@@ -1831,10 +1831,12 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
}
for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
wait_queue_head_t *queue = drm_crtc_vblank_waitqueue(crtc);
if (!(crtc_mask & drm_crtc_mask(crtc)))
continue;
ret = wait_event_timeout(dev->vblank[i].queue,
ret = wait_event_timeout(*queue,
state->crtcs[i].last_vblank_count !=
drm_crtc_vblank_count(crtc),
msecs_to_jiffies(100));