linux-kernel - [PATCH] media: i2c: max9286: Pass default bus type when parsing fwnode endpoint

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Date:   Tue,  1 Oct 2019 20:25:03 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     jacopo+renesas@...ndi.org, kieran.bingham+renesas@...asonboard.com,
        laurent.pinchart+renesas@...asonboard.com,
        niklas.soderlund+renesas@...natech.se, mchehab@...nel.org
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH] media: i2c: max9286: Pass default bus type when parsing fwnode endpoint

The caller of v4l2_fwnode_endpoint_alloc_parse() is expected to pass a
valid bus_type parameter for proper working of this API. Hence, pass
V4L2_MBUS_CSI2_DPHY as the bus_type parameter as this driver only supports
MIPI CSI2 for now. Without this commit, the API fails on 96Boards
Dragonboard410c connected to MAX9286 deserializer.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---

This patch depends on the latest "MAX9286 GMSL Support" series posted
by Kieran Bingham.

 drivers/media/i2c/max9286.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c
index 9390edf5ad9c..6e1299f15493 100644
--- a/drivers/media/i2c/max9286.c
+++ b/drivers/media/i2c/max9286.c
@@ -976,7 +976,9 @@ static int max9286_parse_dt(struct max9286_device *max9286)
 
 		/* For the source endpoint just parse the bus configuration. */
 		if (ep.port == MAX9286_SRC_PAD) {
-			struct v4l2_fwnode_endpoint vep;
+			struct v4l2_fwnode_endpoint vep = {
+				.bus_type = V4L2_MBUS_CSI2_DPHY
+			};
 			int ret;
 
 			ret = v4l2_fwnode_endpoint_alloc_parse(
-- 
2.17.1