[PATCH 1/5] media: i2c: ov5675: Wait for endpoint

[Antti Laakso <antti.laakso@linux.intel.com>]

Defer probe if endpoint is not yet available. And do it before acquiring
clock, gpio and regulators.

Signed-off-by: Antti Laakso <antti.laakso@linux.intel.com>
---
 drivers/media/i2c/ov5675.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/media/i2c/ov5675.c b/drivers/media/i2c/ov5675.c
index ea26df328189..81916fa8c117 100644
--- a/drivers/media/i2c/ov5675.c
+++ b/drivers/media/i2c/ov5675.c
@@ -1181,6 +1181,13 @@ static int ov5675_get_hwcfg(struct ov5675 *ov5675)
 	if (!fwnode)
 		return -ENXIO;
 
+	ep = fwnode_graph_get_endpoint_by_id(fwnode, 0, 0,
+					     FWNODE_GRAPH_ENDPOINT_NEXT);
+	ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+	fwnode_handle_put(ep);
+	if (ret)
+		return ret;
+
 	ov5675->xvclk = devm_v4l2_sensor_clk_get(dev, NULL);
 	if (IS_ERR(ov5675->xvclk))
 		return dev_err_probe(dev, PTR_ERR(ov5675->xvclk),
@@ -1210,15 +1217,6 @@ static int ov5675_get_hwcfg(struct ov5675 *ov5675)
 	if (ret)
 		return ret;
 
-	ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
-	if (!ep)
-		return -ENXIO;
-
-	ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
-	fwnode_handle_put(ep);
-	if (ret)
-		return ret;
-
 	if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV5675_DATA_LANES) {
 		dev_err(dev, "number of CSI2 data lanes %d is not supported",
 			bus_cfg.bus.mipi_csi2.num_data_lanes);
-- 
2.53.0