diff options
| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2020-10-16 01:14:06 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-11-16 10:31:10 +0100 |
| commit | 43e36a222a33bf9a0ea33f2e3eb1d7881f965ff8 (patch) | |
| tree | 1b7c7f6a40e91f0b628b79d25c232486238992e9 /drivers | |
| parent | b83a18cca8924a11eb3317354de30a5a4220aec9 (diff) | |
media: rcar-vin: Cache the CSI-2 channel selection value
In preparation of suspend/resume support cache the chsel value when
written to the register so it can be restored on resume if needed.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-dma.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-vin.h | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index 680160f9f851..f65deac4c2db 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -1456,6 +1456,8 @@ int rvin_set_channel_routing(struct rvin_dev *vin, u8 chsel) vin_dbg(vin, "Set IFMD 0x%x\n", ifmd); + vin->chsel = chsel; + /* Restore VNMC. */ rvin_write(vin, vnmc, VNMC_REG); diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h index 8396e0e45478..2fef23470e3d 100644 --- a/drivers/media/platform/rcar-vin/rcar-vin.h +++ b/drivers/media/platform/rcar-vin/rcar-vin.h @@ -189,6 +189,7 @@ struct rvin_info { * @state: keeps track of operation state * * @is_csi: flag to mark the VIN as using a CSI-2 subdevice + * @chsel Cached value of the current CSI-2 channel selection * * @mbus_code: media bus format code * @format: active V4L2 pixel format @@ -232,6 +233,7 @@ struct rvin_dev { enum rvin_dma_state state; bool is_csi; + unsigned int chsel; u32 mbus_code; struct v4l2_pix_format format; |