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drm/atomic-helper: Add a note in drm_atomic_helper_reset_crtc() kernel-doc

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As suggested in [0], add a note indicating that
drm_atomic_helper_reset_crtc() can be a no-op in some cases.

[0]:https://lore.kernel.org/all/Z7XfnPGDYspwG42y@phenom.ffwll.local/

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20250220140406.593314-1-herve.codina@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
This commit is contained in:
Herve Codina
2025-02-20 15:04:06 +01:00
committed by Louis Chauvet
parent 4ce2c7e201
commit 60341a6d79
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/drm_atomic_helper.c
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@@ -3409,6 +3409,10 @@ EXPORT_SYMBOL(drm_atomic_helper_disable_all);
* This implies a reset of all active components available between the CRTC and
* connectors.
*
* NOTE: This relies on resetting &drm_crtc_state.connectors_changed.
* For drivers which optimize out unnecessary modesets this will result in
* a no-op commit, achieving nothing.
*
* Returns:
* 0 on success or a negative error code on failure.
*/