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| author |   Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-03-26 18:47:36 +0100 |
|---|---|---|
| committer |   Louis Chauvet <louis.chauvet@bootlin.com> | 2025-04-07 11:38:04 +0200 |
| commit | 30d1b37d4c022b5e6c164c090a60a3be1a66876e (patch) | |
| tree | a2ae4c064d59d7a6d996a639319237588172ace0 /scripts/lib/kdoc/kdoc_parser.py | |
| parent | drm/bridge: add devm_drm_bridge_alloc() (diff) | |
| download | wireguard-linux-30d1b37d4c022b5e6c164c090a60a3be1a66876e.tar.xz wireguard-linux-30d1b37d4c022b5e6c164c090a60a3be1a66876e.zip | |
drm/bridge: add support for refcounting
DRM bridges are currently considered as a fixed element of a DRM card, and
thus their lifetime is assumed to extend for as long as the card
exists. New use cases, such as hot-pluggable hardware with video bridges,
require DRM bridges to be added to and removed from a DRM card without
tearing the card down. This is possible for connectors already (used by DP
MST), it is now needed for DRM bridges as well.
As a first preliminary step, make bridges reference-counted to allow a
struct drm_bridge (along with the private driver structure embedding it) to
stay allocated even after the driver has been removed, until the last
reference is put.
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250326-drm-bridge-refcount-v9-2-5e0661fe1f84@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_parser.py')
0 files changed, 0 insertions, 0 deletions