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| author |  Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
| 2020-10-03 00:23:22 +0200 |
|---|---|---|
| committer |  Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| 2020-11-16 10:31:14 +0100 |
| commit | efcb7dda9b53d4569d08906eedc95aa51d2d5555 (patch) | |
| tree | 085a934bcb8c979602400e26af5e843082908d6a | |
| parent | media: i2c: ov772x: Parse endpoint properties (diff) | |
| download | linux-efcb7dda9b53d4569d08906eedc95aa51d2d5555.tar.gz linux-efcb7dda9b53d4569d08906eedc95aa51d2d5555.tar.bz2 linux-efcb7dda9b53d4569d08906eedc95aa51d2d5555.zip | |
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: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| -rw-r--r-- | drivers/media/i2c/ov772x.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c index afe2446dfb68..86e542b77ee5 100644 --- a/drivers/media/i2c/ov772x.c +++ b/drivers/media/i2c/ov772x.c @@ -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) - goto error_fwnode_put; + 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); |