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Message-Id: <20201002165656.16744-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Fri, 2 Oct 2020 17:56:54 +0100
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To: Jacopo Mondi <jacopo@...ndi.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Biju Das <biju.das.jz@...renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v7 1/3] media: i2c: ov772x: Parse endpoint properties
Parse endpoint properties using v4l2_fwnode_endpoint_alloc_parse()
to determine the bus type and store it in the driver structure.
Set bus_type to V4L2_MBUS_PARALLEL as it's the only supported one
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@...ndi.org>
---
drivers/media/i2c/ov772x.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
index 2cc6a678069a..b56f8d7609e6 100644
--- a/drivers/media/i2c/ov772x.c
+++ b/drivers/media/i2c/ov772x.c
@@ -31,6 +31,7 @@
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
#include <media/v4l2-image-sizes.h>
#include <media/v4l2-subdev.h>
@@ -434,6 +435,7 @@ struct ov772x_priv {
#ifdef CONFIG_MEDIA_CONTROLLER
struct media_pad pad;
#endif
+ enum v4l2_mbus_type bus_type;
};
/*
@@ -1348,6 +1350,33 @@ static const struct v4l2_subdev_ops ov772x_subdev_ops = {
.pad = &ov772x_subdev_pad_ops,
};
+static int ov772x_parse_dt(struct i2c_client *client,
+ struct ov772x_priv *priv)
+{
+ struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_PARALLEL };
+ struct fwnode_handle *ep;
+ int ret;
+
+ ep = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
+ NULL);
+ if (!ep) {
+ dev_err(&client->dev, "Endpoint node not found\n");
+ return -EINVAL;
+ }
+
+ ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+ if (ret)
+ goto error_fwnode_put;
+
+ priv->bus_type = bus_cfg.bus_type;
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+
+error_fwnode_put:
+ fwnode_handle_put(ep);
+
+ return ret;
+}
+
/*
* i2c_driver function
*/
@@ -1415,6 +1444,10 @@ static int ov772x_probe(struct i2c_client *client)
goto error_clk_put;
}
+ ret = ov772x_parse_dt(client, priv);
+ if (ret)
+ goto error_clk_put;
+
ret = ov772x_video_probe(priv);
if (ret < 0)
goto error_gpio_put;
--
2.17.1
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