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media: imx: imx7_mipi_csis: Ensure pads are connected

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The CSI-2 receiver requires both its sink pad and its source pad to be
connected through enabled links in order to be started. Ensure this by
setting the MEDIA_PAD_FL_MUST_CONNECT flag on both pads.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Laurent Pinchart 2021-01-08 01:05:19 +01:00 committed by Mauro Carvalho Chehab
parent a791960d2d
commit 33f643817f
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/media/imx/imx7-mipi-csis.c
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@ -1065,8 +1065,10 @@ static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd,
v4l2_set_subdevdata(mipi_sd, &pdev->dev);
state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
state->pads[CSIS_PAD_SINK].flags = MEDIA_PAD_FL_SINK
| MEDIA_PAD_FL_MUST_CONNECT;
state->pads[CSIS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE
| MEDIA_PAD_FL_MUST_CONNECT;
return media_entity_pads_init(&mipi_sd->entity, CSIS_PADS_NUM,
state->pads);
}