drm/bridge: add devm_drm_put_bridge()

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Bridges obtained via devm_drm_bridge_alloc(dev, ...) will be put when the
requesting device (@dev) is removed.

However drivers which obtained them may need to put the obtained reference
explicitly. One such case is if they bind the devm removal action to a
different device than the one implemented by the driver itself and which
might be removed at a different time, such as bridge/panel.c.

Add devm_drm_put_bridge() to manually release a devm-obtained bridge in
such cases.

This function is considered only a temporary workaround until the panel
bridge is reworked and should be removed afterwards.

Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250509-drm-bridge-convert-to-alloc-api-v3-20-b8bc1f16d7aa@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

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This commit is contained in:

Luca Ceresoli 2025-05-09 15:53:46 +02:00

parent afb903c01b

commit 5164553d73

2 changed files with 21 additions and 0 deletions

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17

drivers/gpu/drm/drm_bridge.c

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4

include/drm/drm_bridge.h

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