Initialize the subdevice format to the default 1280x720 YUV 4:2:2.
The subdevice format is propagated from the frontend (HDMI or AFE) to
the CSI-2 tx, but it was not initialized during the CSI-2 tx
registration.
Use YUYV8 1280x720 as default format as it's supported by both TXes in
all supported configurations (1, 2 or 4 CSI-2 lanes).
Signed-off-by: Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx>
---
drivers/media/i2c/adv748x/adv748x-csi2.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
index 5b265b722394..9da7f6742a2b 100644
--- a/drivers/media/i2c/adv748x/adv748x-csi2.c
+++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
@@ -14,6 +14,13 @@
#include "adv748x.h"
+static const struct v4l2_mbus_framefmt adv748x_csi2_default_fmt = {
+ .width = 1280,
+ .height = 720,
+ .code = MEDIA_BUS_FMT_YUYV8_1X16,
+ .field = V4L2_FIELD_NONE,
+};
+
int adv748x_csi2_set_virtual_channel(struct adv748x_csi2 *tx, unsigned int vc)
{
return tx_write(tx, ADV748X_CSI_VC_REF, vc << ADV748X_CSI_VC_REF_SHIFT);
@@ -311,6 +318,8 @@ int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx)
if (ret)
return ret;
+ tx->format = adv748x_csi2_default_fmt;
+
ret = v4l2_async_subdev_endpoint_add(&tx->sd,
of_fwnode_handle(state->endpoints[tx->port]));
if (ret)
--
2.44.0
