Commit efcb7dda authored by Lad Prabhakar's avatar Lad Prabhakar Committed by Mauro Carvalho Chehab
Browse files

media: i2c: ov772x: Add support for BT.656 mode 



Add support to read the bus-type for V4L2_MBUS_BT656 and enable BT.656
mode in the sensor if needed.

For backward compatibility with older DTS where the bus-type property was
not mandatory, assume V4L2_MBUS_PARALLEL as it was the only supported bus
at the time. v4l2_fwnode_endpoint_alloc_parse() will not fail if
'bus-type' is not specified.

Signed-off-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
parent 8a10b4e3

drivers/media/i2c/ov772x.c

+22 −2
Original line number Diff line number Diff line
@@ -583,6 +583,14 @@ static int ov772x_s_stream(struct v4l2_subdev *sd, int enable) 
	if (priv->streaming == enable)

		goto done;



	if (priv->bus_type == V4L2_MBUS_BT656) {

		ret = regmap_update_bits(priv->regmap, COM7, ITU656_ON_OFF,

					 enable ?

					 ITU656_ON_OFF : ~ITU656_ON_OFF);

		if (ret)

			goto done;

	}



	ret = regmap_update_bits(priv->regmap, COM2, SOFT_SLEEP_MODE,

				 enable ? 0 : SOFT_SLEEP_MODE);

	if (ret)
@@ -1365,9 +1373,21 @@ static int ov772x_parse_dt(struct i2c_client *client, 
		return -EINVAL;

	}



	/*

	 * For backward compatibility with older DTS where the

	 * bus-type property was not mandatory, assume

	 * V4L2_MBUS_PARALLEL as it was the only supported bus at the

	 * time. v4l2_fwnode_endpoint_alloc_parse() will not fail if

	 * 'bus-type' is not specified.

	 */

	ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);

	if (ret) {

		bus_cfg = (struct v4l2_fwnode_endpoint)

			  { .bus_type = V4L2_MBUS_BT656 };

		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);