diff options
| author | Douglas Anderson <dianders@chromium.org> | 2022-02-04 16:13:41 -0800 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2022-02-15 15:25:18 -0800 |
| commit | 2509969a9862b522d2208e8663057fb227556687 (patch) | |
| tree | ff52cebcc0aece228591915b6f6840f5cf7ecff9 /include/drm | |
| parent | e283820cbf8092c87a8d6461260d5bc525da72c9 (diff) | |
drm: Plumb debugfs_init through to panels
We'd like panels to be able to add things to debugfs underneath the
connector's directory. Let's plumb it through. A panel will be able to
put things in a "panel" directory under the connector's
directory. Note that debugfs is not ABI and so it's always possible
that the location that the panel gets for its debugfs could change in
the future.
NOTE: this currently only works if you're using a modern
architecture. Specifically the plumbing relies on _both_
drm_bridge_connector and drm_panel_bridge. If you're not using one or
both of these things then things won't be plumbed through.
As a side effect of this change, drm_bridges can also get callbacks to
put stuff underneath the connector's debugfs directory. At the moment
all bridges in the chain have their debugfs_init() called with the
connector's root directory.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204161245.v2.2.Ib0bd5346135cbb0b63006b69b61d4c8af6484740@changeid
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_bridge.h | 7 | ||||
| -rw-r--r-- | include/drm/drm_connector.h | 7 | ||||
| -rw-r--r-- | include/drm/drm_panel.h | 8 |
3 files changed, 22 insertions, 0 deletions
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 061d87313fac..f27b4060faa2 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -649,6 +649,13 @@ struct drm_bridge_funcs { * the DRM_BRIDGE_OP_HPD flag in their &drm_bridge->ops. */ void (*hpd_disable)(struct drm_bridge *bridge); + + /** + * @debugfs_init: + * + * Allows bridges to create bridge-specific debugfs files. + */ + void (*debugfs_init)(struct drm_bridge *bridge, struct dentry *root); }; /** diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 5e36eb3df66f..5166186146f4 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1142,6 +1142,13 @@ struct drm_connector_funcs { * has been received from a source outside the display driver / device. */ void (*oob_hotplug_event)(struct drm_connector *connector); + + /** + * @debugfs_init: + * + * Allows connectors to create connector-specific debugfs files. + */ + void (*debugfs_init)(struct drm_connector *connector, struct dentry *root); }; /** diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 4602f833eb51..1ba2d424a53f 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -29,6 +29,7 @@ #include <linux/list.h> struct backlight_device; +struct dentry; struct device_node; struct drm_connector; struct drm_device; @@ -125,6 +126,13 @@ struct drm_panel_funcs { */ int (*get_timings)(struct drm_panel *panel, unsigned int num_timings, struct display_timing *timings); + + /** + * @debugfs_init: + * + * Allows panels to create panels-specific debugfs files. + */ + void (*debugfs_init)(struct drm_panel *panel, struct dentry *root); }; /** |