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drm/bridge: remove devm_drm_put_bridge()

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The deprecated devm_drm_put_bridge() function is not used anymore.

Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260916-drm-bridge-every-panel-v3-6-83afb4f1a707@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
Luca Ceresoli 2026-09-16 15:45:30 +02:00
parent b7797081cc
commit 51afe16e33
3 changed files with 0 additions and 35 deletions
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16
Documentation/gpu/todo.rst
View File

@ -484,22 +484,6 @@ Contact: Douglas Anderson <dianders@chromium.org>
Level: Starter
Remove devm_drm_put_bridge()
----------------------------
Due to how the panel bridge handles the drm_bridge object lifetime, special
care must be taken to dispose of the drm_bridge object when the
panel_bridge is removed. This is currently managed using
devm_drm_put_bridge(), but that is an unsafe, temporary workaround. To fix
that, the DRM panel lifetime needs to be reworked. After the rework is
done, remove devm_drm_put_bridge() and the TODO in
drm_panel_bridge_remove().
Contact: Maxime Ripard <mripard@kernel.org>,
Luca Ceresoli <luca.ceresoli@bootlin.com>
Level: Intermediate
Convert users of of_drm_find_bridge() to of_drm_find_and_get_bridge()
---------------------------------------------------------------------

17
drivers/gpu/drm/drm_bridge.c
View File

@ -1741,23 +1741,6 @@ struct drm_bridge *of_drm_get_bridge_by_endpoint(const struct device_node *np,
EXPORT_SYMBOL_GPL(of_drm_get_bridge_by_endpoint);
#endif
/**
* devm_drm_put_bridge - Release a bridge reference obtained via devm
* @dev: device that got the bridge via devm
* @bridge: pointer to a struct drm_bridge obtained via devm
*
* Same as drm_bridge_put() for bridge pointers obtained via devm functions
* such as devm_drm_bridge_alloc().
*
* This function is a temporary workaround and MUST NOT be used. Manual
* handling of bridge lifetime is inherently unsafe.
*/
void devm_drm_put_bridge(struct device *dev, struct drm_bridge *bridge)
{
devm_release_action(dev, drm_bridge_put_void, bridge);
}
EXPORT_SYMBOL(devm_drm_put_bridge);
static void drm_bridge_debugfs_show_bridge(struct drm_printer *p,
struct drm_bridge *bridge,
unsigned int idx,

2
include/drm/drm_bridge.h
View File

@ -1522,8 +1522,6 @@ void drm_bridge_hpd_disable(struct drm_bridge *bridge);
void drm_bridge_hpd_notify(struct drm_bridge *bridge,
enum drm_connector_status status);
void devm_drm_put_bridge(struct device *dev, struct drm_bridge *bridge);
void drm_bridge_debugfs_params(struct dentry *root);
void drm_bridge_debugfs_encoder_params(struct dentry *root, struct drm_encoder *encoder);