diff options
| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2018-04-14 07:57:13 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-04-20 10:01:12 -0400 |
| commit | 90dedce9bc5446411fde1229e212a9d2b07cd263 (patch) | |
| tree | 39c443813a365251e3d347c05ccac02faa8f4ef5 /drivers/media/platform/rcar-vin/rcar-vin.h | |
| parent | 4394eb24a8d4088c80886a6823bbc132ac1a320c (diff) | |
media: rcar-vin: add function to manipulate Gen3 chsel value
On Gen3 the CSI-2 routing is controlled by the VnCSI_IFMD register. One
feature of this register is that it's only present in the VIN0 and VIN4
instances. The register in VIN0 controls the routing for VIN0-3 and the
register in VIN4 controls routing for VIN4-7.
To be able to control routing from a media device this function is need
to control runtime PM for the subgroup master (VIN0 and VIN4). The
subgroup master must be switched on before the register is manipulated,
once the operation is complete it's safe to switch the master off and
the new routing will still be in effect.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/platform/rcar-vin/rcar-vin.h')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-vin.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index 321283f1618a..c19ddc5e08cb 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -169,4 +169,6 @@ const struct rvin_video_format *rvin_format_from_pixel(u32 pixelformat); /* Cropping, composing and scaling */ void rvin_crop_scale_comp(struct rvin_dev *vin); +int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel); + #endif |