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.
Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
---
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 4277bf4f032b..56ac51b257b9 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>
@@ -367,6 +368,44 @@ 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 d434ab416ad4..e37a419ac2b4 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -930,6 +930,8 @@ 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);
#else
static inline bool drm_bridge_is_panel(const struct drm_bridge *bridge)
--
2.36.1
