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Subject[PATCH 01/30] drm: Introduce drm_bridge_init()
Date
A simple convenience function to initialize the struct drm_bridge.

Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
---
drivers/gpu/drm/drm_bridge.c | 29 +++++++++++++++++++++++++++++
include/drm/drm_bridge.h | 4 ++++
2 files changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index cba537c99e43..cbe680aa6eac 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -89,6 +89,35 @@ void drm_bridge_remove(struct drm_bridge *bridge)
}
EXPORT_SYMBOL(drm_bridge_remove);

+/**
+ * drm_bridge_init - initialise a drm_bridge structure
+ *
+ * @bridge: bridge control structure
+ * @funcs: control functions
+ * @dev: device
+ * @timings: timing specification for the bridge; optional (may be NULL)
+ * @driver_private: pointer to the bridge driver internal context (may be NULL)
+ */
+void drm_bridge_init(struct drm_bridge *bridge, struct device *dev,
+ const struct drm_bridge_funcs *funcs,
+ const struct drm_bridge_timings *timings,
+ void *driver_private)
+{
+ WARN_ON(!funcs);
+
+ bridge->dev = NULL;
+ bridge->encoder = NULL;
+ bridge->next = NULL;
+
+#ifdef CONFIG_OF
+ bridge->of_node = dev->of_node;
+#endif
+ bridge->timings = timings;
+ bridge->funcs = funcs;
+ bridge->driver_private = driver_private;
+}
+EXPORT_SYMBOL(drm_bridge_init);
+
/**
* drm_bridge_attach - attach the bridge to an encoder's chain
*
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index c0a2286a81e9..d6d9d5301551 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -402,6 +402,10 @@ struct drm_bridge {

void drm_bridge_add(struct drm_bridge *bridge);
void drm_bridge_remove(struct drm_bridge *bridge);
+void drm_bridge_init(struct drm_bridge *bridge, struct device *dev,
+ const struct drm_bridge_funcs *funcs,
+ const struct drm_bridge_timings *timings,
+ void *driver_private);
struct drm_bridge *of_drm_find_bridge(struct device_node *np);
int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,
struct drm_bridge *previous);
--
2.23.0
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