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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-06-15 14:33:31 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-08-11 15:49:30 +0300 |
| commit | 1f3375e0b257d086efe2b7d3d705e47c3e4a6c2d (patch) | |
| tree | 399c624f1fa1e29136bd18d1edf42e6be8d03c56 /drivers | |
| parent | 9212e1d8722d28a06a763f46b783881dcde1fb34 (diff) | |
| download | linux-1f3375e0b257d086efe2b7d3d705e47c3e4a6c2d.tar.xz | |
[media] tw9910: init priv->scale and update standard
When the standard changes the VACTIVE and VDELAY values need to be updated.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/i2c/soc_camera/tw9910.c | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/drivers/media/i2c/soc_camera/tw9910.c b/drivers/media/i2c/soc_camera/tw9910.c index df664173cc1b..e939c24bfd3c 100644 --- a/drivers/media/i2c/soc_camera/tw9910.c +++ b/drivers/media/i2c/soc_camera/tw9910.c @@ -510,13 +510,39 @@ static int tw9910_s_std(struct v4l2_subdev *sd, v4l2_std_id norm) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct tw9910_priv *priv = to_tw9910(client); + const unsigned hact = 720; + const unsigned hdelay = 15; + unsigned vact; + unsigned vdelay; + int ret; if (!(norm & (V4L2_STD_NTSC | V4L2_STD_PAL))) return -EINVAL; priv->norm = norm; + if (norm & V4L2_STD_525_60) { + vact = 240; + vdelay = 18; + ret = tw9910_mask_set(client, VVBI, 0x10, 0x10); + } else { + vact = 288; + vdelay = 24; + ret = tw9910_mask_set(client, VVBI, 0x10, 0x00); + } + if (!ret) + ret = i2c_smbus_write_byte_data(client, CROP_HI, + ((vdelay >> 2) & 0xc0) | + ((vact >> 4) & 0x30) | + ((hdelay >> 6) & 0x0c) | + ((hact >> 8) & 0x03)); + if (!ret) + ret = i2c_smbus_write_byte_data(client, VDELAY_LO, + vdelay & 0xff); + if (!ret) + ret = i2c_smbus_write_byte_data(client, VACTIVE_LO, + vact & 0xff); - return 0; + return ret; } #ifdef CONFIG_VIDEO_ADV_DEBUG @@ -820,6 +846,7 @@ static int tw9910_video_probe(struct i2c_client *client) "tw9910 Product ID %0x:%0x\n", id, priv->revision); priv->norm = V4L2_STD_NTSC; + priv->scale = &tw9910_ntsc_scales[0]; done: tw9910_s_power(&priv->subdev, 0); |