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[3/4] media: i2c: adv748x: Implement get_mbus_config

Message ID 20200313144035.401430-4-jacopo+renesas@jmondi.org
State New
Headers show
Series [1/4] media: i2c: adv748x: Adjust TXA data lanes number | expand

Commit Message

Jacopo Mondi March 13, 2020, 2:40 p.m. UTC 
Implement the newly introduced get_mbus_config operation to report the
number of currently used data lanes on the MIPI CSI-2 interface.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
---
 drivers/media/i2c/adv748x/adv748x-csi2.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 2091cda50935..f13563da3ff3 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -214,9 +214,24 @@  static int adv748x_csi2_set_format(struct v4l2_subdev *sd,
 	return ret;
 }
 
+static int adv748x_csi2_get_mbus_config(struct v4l2_subdev *sd, unsigned int pad,
+					struct v4l2_mbus_pad_config *config)
+{
+	struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
+
+	if (pad != ADV748X_CSI2_SOURCE)
+		return -EINVAL;
+
+	config->type = V4L2_MBUS_CSI2_DPHY;
+	config->csi2_dphy.data_lanes = tx->active_lanes;
+
+	return 0;
+}
+
 static const struct v4l2_subdev_pad_ops adv748x_csi2_pad_ops = {
 	.get_fmt = adv748x_csi2_get_format,
 	.set_fmt = adv748x_csi2_set_format,
+	.get_mbus_config = adv748x_csi2_get_mbus_config,
 };
 
 /* -----------------------------------------------------------------------------