[PATCH v3 07/22] drm/bridge: ite-it66121: get/put the next bridge

Luca Ceresoli
2025-12-16T18:00:02Z

This driver obtains a bridge pointer from of_drm_find_bridge() in the probe
function and stores it until driver removal. of_drm_find_bridge() is
deprecated. Move to of_drm_find_and_get_bridge() for the bridge to be
refcounted and use bridge->next_bridge to put the reference on
deallocation.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
---
drivers/gpu/drm/bridge/ite-it66121.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 0185f61e6e59..9246e9c15a6e 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -298,7 +298,6 @@ struct it66121_chip_info {
struct it66121_ctx {
struct regmap *regmap;
struct drm_bridge bridge;
- struct drm_bridge *next_bridge;
struct drm_connector *connector;
struct device *dev;
struct gpio_desc *gpio_reset;
@@ -596,7 +595,7 @@ static int it66121_bridge_attach(struct drm_bridge *bridge,
if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
return -EINVAL;

- ret = drm_bridge_attach(encoder, ctx->next_bridge, bridge, flags);
+ ret = drm_bridge_attach(encoder, ctx->bridge.next_bridge, bridge, flags);
if (ret)
return ret;

@@ -1543,9 +1542,9 @@ static int it66121_probe(struct i2c_client *client)
return -EINVAL;
}

- ctx->next_bridge = of_drm_find_bridge(ep);
+ ctx->bridge.next_bridge = of_drm_find_and_get_bridge(ep);
of_node_put(ep);
- if (!ctx->next_bridge) {
+ if (!ctx->bridge.next_bridge) {
dev_dbg(ctx->dev, "Next bridge not found, deferring probe\n");
return -EPROBE_DEFER;
}

--
2.52.0