Unlike what can be found for other entities, there's no DRM-managed function to create a panel_bridge instance from a panel.
Let's introduce one.
Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/bridge/panel.c | 39 ++++++++++++++++++++++++++++++++++ include/drm/drm_bridge.h | 2 ++ 2 files changed, 41 insertions(+)
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 0ee563eb2b6f..07d720aa38c6 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -8,6 +8,7 @@ #include <drm/drm_bridge.h> #include <drm/drm_connector.h> #include <drm/drm_encoder.h> +#include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> @@ -333,6 +334,44 @@ struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev, } EXPORT_SYMBOL(devm_drm_panel_bridge_add_typed);
+static void drmm_drm_panel_bridge_release(struct drm_device *drm, void *ptr) +{ + struct drm_bridge *bridge = ptr; + + drm_panel_bridge_remove(bridge); +} + +/** + * drmm_panel_bridge_add - Creates a DRM-managed &drm_bridge and + * &drm_connector that just calls the + * appropriate functions from &drm_panel. + * + * @dev: DRM device to tie the bridge lifetime to + * @panel: The drm_panel being wrapped. Must be non-NULL. + * + * This is the DRM-managed version of drm_panel_bridge_add() which + * automatically calls drm_panel_bridge_remove() when @dev is cleaned + * up. + */ +struct drm_bridge *drmm_panel_bridge_add(struct drm_device *drm, + struct drm_panel *panel) +{ + struct drm_bridge *bridge; + int ret; + + bridge = drm_panel_bridge_add_typed(panel, panel->connector_type); + if (IS_ERR(bridge)) + return bridge; + + ret = drmm_add_action_or_reset(drm, drmm_drm_panel_bridge_release, + bridge); + if (ret) + return ERR_PTR(ret); + + return bridge; +} +EXPORT_SYMBOL(drmm_panel_bridge_add); + /** * drm_panel_bridge_connector - return the connector for the panel bridge * @bridge: The drm_bridge. diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 42aec8612f37..8100a15dd9c2 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -927,6 +927,8 @@ struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev, struct drm_panel *panel, u32 connector_type); +struct drm_bridge *drmm_panel_bridge_add(struct drm_device *drm, + struct drm_panel *panel); struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge); #endif