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media: sun8i-a83t-mipi-csi2: Require both pads to be connected for streaming

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[ Upstream commit 8985fc724b ]

The bridge needs both its pads connected to be able to stream data.
Enforcing this is useful to produce an error when no sensor is
connected.

Fixes: 576d196c52 ("media: sunxi: Add support for the A83T MIPI CSI-2 controller")
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Paul Kocialkowski 2022-09-09 14:39:52 +01:00 committed by Greg Kroah-Hartman
parent daf248d2d6
commit 6c1c8499cd
1 changed files with 4 additions and 2 deletions
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6
drivers/media/platform/sunxi/sun8i-a83t-mipi-csi2/sun8i_a83t_mipi_csi2.c
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@ -557,8 +557,10 @@ sun8i_a83t_mipi_csi2_bridge_setup(struct sun8i_a83t_mipi_csi2_device *csi2_dev)
/* Media Pads */
pads[SUN8I_A83T_MIPI_CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
pads[SUN8I_A83T_MIPI_CSI2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
pads[SUN8I_A83T_MIPI_CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK |
MEDIA_PAD_FL_MUST_CONNECT;
pads[SUN8I_A83T_MIPI_CSI2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE |
MEDIA_PAD_FL_MUST_CONNECT;
ret = media_entity_pads_init(&subdev->entity,
SUN8I_A83T_MIPI_CSI2_PAD_COUNT, pads);