diff options
| author | Kuninori Morimoto <morimoto.kuninori@renesas.com> | 2009-12-11 11:53:55 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-16 09:27:40 -0200 |
| commit | 70da92e5740a6ab8bfe0db826c345c85e795f109 (patch) | |
| tree | 45d812f362334569df09f37c5885850457b04232 /drivers/media/video/tw9910.c | |
| parent | c1d7b06cc37af3a958f7573af69ce2d0920ca79d (diff) | |
V4L/DVB (13669): tw9910: Add sync polarity support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/tw9910.c')
| -rw-r--r-- | drivers/media/video/tw9910.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c index e70905ceef4..5b801a6e1ee 100644 --- a/drivers/media/video/tw9910.c +++ b/drivers/media/video/tw9910.c @@ -512,12 +512,21 @@ static int tw9910_set_bus_param(struct soc_camera_device *icd, { struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct i2c_client *client = sd->priv; + u8 val = VSSL_VVALID | HSSL_DVALID; /* * set OUTCTR1 + * + * We use VVALID and DVALID signals to control VSYNC and HSYNC + * outputs, in this mode their polarity is inverted. */ - return i2c_smbus_write_byte_data(client, OUTCTR1, - VSSL_VVALID | HSSL_DVALID); + if (flags & SOCAM_HSYNC_ACTIVE_LOW) + val |= HSP_HI; + + if (flags & SOCAM_VSYNC_ACTIVE_LOW) + val |= VSP_HI; + + return i2c_smbus_write_byte_data(client, OUTCTR1, val); } static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd) @@ -527,6 +536,7 @@ static unsigned long tw9910_query_bus_param(struct soc_camera_device *icd) struct soc_camera_link *icl = to_soc_camera_link(icd); unsigned long flags = SOCAM_PCLK_SAMPLE_RISING | SOCAM_MASTER | SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_HIGH | + SOCAM_VSYNC_ACTIVE_LOW | SOCAM_HSYNC_ACTIVE_LOW | SOCAM_DATA_ACTIVE_HIGH | priv->info->buswidth; return soc_camera_apply_sensor_flags(icl, flags); |