diff options
| author | Ken Sloat <ksloat@aampglobal.com> | 2019-02-04 17:18:13 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-03-19 20:57:06 +0300 |
| commit | d30c4ffc06113d280fd7b5294ab384658a70c1f1 (patch) | |
| tree | a5a355f9c47ee560c32c3f55ba8ebe8c0eab76a1 /drivers/media/platform/atmel/atmel-isc.c | |
| parent | dea255334c97c61b112dc29b77cd1d0ed4b79fca (diff) | |
| download | linux-d30c4ffc06113d280fd7b5294ab384658a70c1f1.tar.xz | |
media: atmel-isc: Add support for BT656 with CRC decoding
The ISC driver currently supports ITU-R 601 encoding which
utilizes the external hsync and vsync signals. ITU-R 656
format removes the need for these pins by embedding the
sync pulses within the data packet.
To support this feature, enable necessary register bits
when this feature is enabled via device tree.
Signed-off-by: Ken Sloat <ksloat@aampglobal.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/platform/atmel/atmel-isc.c')
| -rw-r--r-- | drivers/media/platform/atmel/atmel-isc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/media/platform/atmel/atmel-isc.c b/drivers/media/platform/atmel/atmel-isc.c index 50178968b8a6..9a399aa7ca92 100644 --- a/drivers/media/platform/atmel/atmel-isc.c +++ b/drivers/media/platform/atmel/atmel-isc.c @@ -1095,7 +1095,8 @@ static int isc_configure(struct isc_device *isc) pfe_cfg0 |= subdev->pfe_cfg0 | ISC_PFE_CFG0_MODE_PROGRESSIVE; mask = ISC_PFE_CFG0_BPS_MASK | ISC_PFE_CFG0_HPOL_LOW | ISC_PFE_CFG0_VPOL_LOW | ISC_PFE_CFG0_PPOL_LOW | - ISC_PFE_CFG0_MODE_MASK; + ISC_PFE_CFG0_MODE_MASK | ISC_PFE_CFG0_CCIR_CRC | + ISC_PFE_CFG0_CCIR656; regmap_update_bits(regmap, ISC_PFE_CFG0, mask, pfe_cfg0); @@ -2084,6 +2085,10 @@ static int isc_parse_dt(struct device *dev, struct isc_device *isc) if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) subdev_entity->pfe_cfg0 |= ISC_PFE_CFG0_PPOL_LOW; + if (v4l2_epn.bus_type == V4L2_MBUS_BT656) + subdev_entity->pfe_cfg0 |= ISC_PFE_CFG0_CCIR_CRC | + ISC_PFE_CFG0_CCIR656; + subdev_entity->asd->match_type = V4L2_ASYNC_MATCH_FWNODE; subdev_entity->asd->match.fwnode = of_fwnode_handle(rem); |