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/meson/meson_encoder_dsi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_encoder_dsi.c b/drivers/gpu/drm/meson/meson_encoder_dsi.c
index 6c6624f9ba24..eba246791c68 100644
--- a/drivers/gpu/drm/meson/meson_encoder_dsi.c
+++ b/drivers/gpu/drm/meson/meson_encoder_dsi.c
@@ -25,7 +25,6 @@
 struct meson_encoder_dsi {
 	struct drm_encoder encoder;
 	struct drm_bridge bridge;
-	struct drm_bridge *next_bridge;
 	struct meson_drm *priv;
 };
 
@@ -38,7 +37,7 @@ static int meson_encoder_dsi_attach(struct drm_bridge *bridge,
 {
 	struct meson_encoder_dsi *encoder_dsi = bridge_to_meson_encoder_dsi(bridge);
 
-	return drm_bridge_attach(encoder, encoder_dsi->next_bridge,
+	return drm_bridge_attach(encoder, encoder_dsi->bridge.next_bridge,
 				 &encoder_dsi->bridge, flags);
 }
 
@@ -120,8 +119,8 @@ int meson_encoder_dsi_probe(struct meson_drm *priv)
 		return 0;
 	}
 
-	meson_encoder_dsi->next_bridge = of_drm_find_bridge(remote);
-	if (!meson_encoder_dsi->next_bridge)
+	meson_encoder_dsi->bridge.next_bridge = of_drm_find_and_get_bridge(remote);
+	if (!meson_encoder_dsi->bridge.next_bridge)
 		return dev_err_probe(priv->dev, -EPROBE_DEFER,
 				     "Failed to find DSI transceiver bridge\n");
 

-- 
2.52.0

On Tue, 16 Dec 2025 18:58:44 +0100, Luca Ceresoli wrote:
> 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.
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime