[PATCH v3 07/22] drm/bridge: ite-it66121: get/put the next bridge
From: Luca Ceresoli <luca.ceresoli@bootlin.com>
Date: 2025-12-16 18:00:00
Also in:
dri-devel, imx, linux-amlogic, linux-doc, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for bridge chips, ite it66121 hdmi bridge driver, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Andrzej Hajda, Neil Armstrong, Robert Foss, Phong LE, Linus Torvalds
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