This is used e.g. by imx6-mipi-csi2.c to determine the CSI2 lane count.
Implement the callback in isl7998x driver so it can be used with i.MX6
CSI2 receiver.
Signed-off-by: Marek Vasut <marex@xxxxxxx>
---
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Michael Tretter <m.tretter@xxxxxxxxxxxxxx>
Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
Cc: linux-media@xxxxxxxxxxxxxxx
---
drivers/media/i2c/isl7998x.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/media/i2c/isl7998x.c b/drivers/media/i2c/isl7998x.c
index 7d2799e498520..560f4845b5e62 100644
--- a/drivers/media/i2c/isl7998x.c
+++ b/drivers/media/i2c/isl7998x.c
@@ -1045,6 +1045,17 @@ static int isl7998x_set_fmt(struct v4l2_subdev *sd,
return 0;
}
+static int isl7998x_get_mbus_config(struct v4l2_subdev *sd, unsigned int pad,
+ struct v4l2_mbus_config *cfg)
+{
+ struct isl7998x *isl7998x = sd_to_isl7998x(sd);
+
+ cfg->type = V4L2_MBUS_CSI2_DPHY;
+ cfg->bus.mipi_csi2.num_data_lanes = isl7998x->nr_mipi_lanes;
+
+ return 0;
+}
+
static int isl7998x_set_ctrl(struct v4l2_ctrl *ctrl)
{
struct isl7998x *isl7998x = container_of(ctrl->handler,
@@ -1104,6 +1115,7 @@ static const struct v4l2_subdev_pad_ops isl7998x_subdev_pad_ops = {
.enum_frame_size = isl7998x_enum_frame_size,
.get_fmt = isl7998x_get_fmt,
.set_fmt = isl7998x_set_fmt,
+ .get_mbus_config = isl7998x_get_mbus_config,
};
static const struct v4l2_subdev_ops isl7998x_subdev_ops = {
--
2.43.0
