diff options
| author | Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2016-09-02 19:44:57 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-09-19 22:31:20 +0300 |
| commit | 7e13a8a45e3ec1c712f1f3995f7f3daf7fa07ecc (patch) | |
| tree | aedc3833b4fd18630694cdc7148efd6bf47da864 /drivers/media | |
| parent | e0ad7a9b90a7a6fc077c975dbbb00142c0a28645 (diff) | |
| download | linux-7e13a8a45e3ec1c712f1f3995f7f3daf7fa07ecc.tar.xz | |
[media] media: rcar-vin: make V4L2_FIELD_INTERLACED standard dependent
The field V4L2_FIELD_INTERLACED is standard dependent and should not
unconditionally be equivalent to V4L2_FIELD_INTERLACED_TB.
This patch adds a check to see if the video standard can be obtained and
if it's a 60 Hz format. If the condition is met V4L2_FIELD_INTERLACED
is treated as V4L2_FIELD_INTERLACED_BT if not as
V4L2_FIELD_INTERLACED_TB.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-dma.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index 8397125a8968..01182e0a86f8 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -131,6 +131,7 @@ static u32 rvin_read(struct rvin_dev *vin, u32 offset) static int rvin_setup(struct rvin_dev *vin) { u32 vnmc, dmr, dmr2, interrupts; + v4l2_std_id std; bool progressive = false, output_is_yuv = false, input_is_yuv = false; switch (vin->format.field) { @@ -141,6 +142,14 @@ static int rvin_setup(struct rvin_dev *vin) vnmc = VNMC_IM_EVEN; break; case V4L2_FIELD_INTERLACED: + /* Default to TB */ + vnmc = VNMC_IM_FULL; + /* Use BT if video standard can be read and is 60 Hz format */ + if (!v4l2_subdev_call(vin_to_source(vin), video, g_std, &std)) { + if (std & V4L2_STD_525_60) + vnmc = VNMC_IM_FULL | VNMC_FOC; + } + break; case V4L2_FIELD_INTERLACED_TB: vnmc = VNMC_IM_FULL; break; |