[PATCH 2/2] drm/bridge: it66121: Wait for next bridge to be probed

[Paul Cercueil]

If run before the next bridge is initialized, of_drm_find_bridge() will
give us a NULL pointer.

If that's the case, return -EPROBE_DEFER; we may have more luck next
time.

Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/bridge/ite-it66121.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index b130d01147c6..9dc41a7b9136 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -924,6 +924,9 @@ static int it66121_probe(struct i2c_client *client,
 	ctx->next_bridge = of_drm_find_bridge(ep);
 	of_node_put(ep);
 
+	if (!ctx->next_bridge)
+		return -EPROBE_DEFER;
+
 	i2c_set_clientdata(client, ctx);
 	mutex_init(&ctx->lock);
 
-- 
2.33.0