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| author | Maxime Ripard <maxime@cerno.tech> | 2021-09-10 15:09:39 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-09-14 10:39:01 +0200 |
| commit | 87ea95808d53e56b03e620e8f8f3add48899a88d (patch) | |
| tree | ac87c3143bb1ac322e60fa16a8e48d843eaadebc /drivers/gpu/drm/drm_of.c | |
| parent | 2f76520561d01a5f37e6d6ed2c2e441b6a355a96 (diff) | |
| download | lwn-87ea95808d53e56b03e620e8f8f3add48899a88d.tar.gz lwn-87ea95808d53e56b03e620e8f8f3add48899a88d.zip | |
drm/bridge: Add a function to abstract away panels
Display drivers so far need to have a lot of boilerplate to first
retrieve either the panel or bridge that they are connected to using
drm_of_find_panel_or_bridge(), and then either deal with each with ad-hoc
functions or create a drm panel bridge through drm_panel_bridge_add.
In order to reduce the boilerplate and hopefully create a path of least
resistance towards using the DRM panel bridge layer, let's create the
function devm_drm_of_get_bridge() to reduce that boilerplate.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210910130941.1740182-2-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/drm_of.c')
| -rw-r--r-- | drivers/gpu/drm/drm_of.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index 997b8827fed2..37c34146eea8 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -231,6 +231,9 @@ EXPORT_SYMBOL_GPL(drm_of_encoder_active_endpoint); * return either the associated struct drm_panel or drm_bridge device. Either * @panel or @bridge must not be NULL. * + * This function is deprecated and should not be used in new drivers. Use + * devm_drm_of_get_bridge() instead. + * * Returns zero if successful, or one of the standard error codes if it fails. */ int drm_of_find_panel_or_bridge(const struct device_node *np, |