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drm/atomic: log when page-flip is requested without CRTCs

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Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221019143736.267324-6-contact@emersion.fr
This commit is contained in:
Simon Ser
2022-10-19 14:38:16 +00:00
parent d43b3cdcc6
commit 98f5185420
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/drm_atomic_uapi.c
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@@ -1265,8 +1265,10 @@ static int prepare_signaling(struct drm_device *dev,
* Having this flag means user mode pends on event which will never
* reach due to lack of at least one CRTC for signaling
*/
if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) {
drm_dbg_atomic(dev, "need at least one CRTC for DRM_MODE_PAGE_FLIP_EVENT");
return -EINVAL;
}
return 0;
}