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Subject[PATCH v5 2/3] media: i2c: ov772x: Add support for BT.656 mode
Date
Add support to read the bus-type for V4L2_MBUS_BT656 and
enable BT.656 mode in the sensor if needed.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
---
drivers/media/i2c/ov772x.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
index 4ab4b3c883d0..869f2d94faec 100644
--- a/drivers/media/i2c/ov772x.c
+++ b/drivers/media/i2c/ov772x.c
@@ -583,6 +583,13 @@ 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)
@@ -1436,9 +1443,17 @@ static int ov772x_probe(struct i2c_client *client)
ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
priv->bus_type = bus_cfg.bus_type;
v4l2_fwnode_endpoint_free(&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) {
+ fwnode_handle_put(ep);
+ goto error_clk_put;
+ }
+ priv->bus_type = bus_cfg.bus_type;
+ }
fwnode_handle_put(ep);
- if (ret)
- goto error_clk_put;

ret = ov772x_video_probe(priv);
if (ret < 0)
--
2.17.1
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