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authorHans Verkuil <hans.verkuil@cisco.com>2015-06-15 08:33:31 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-08-11 09:49:30 -0300
commit1f3375e0b257d086efe2b7d3d705e47c3e4a6c2d (patch)
tree399c624f1fa1e29136bd18d1edf42e6be8d03c56 /drivers/media/i2c
parent9212e1d8722d28a06a763f46b783881dcde1fb34 (diff)
[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/media/i2c')
-rw-r--r--drivers/media/i2c/soc_camera/tw9910.c29
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);

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