diff options
Diffstat (limited to 'drivers/media/i2c/soc_camera')
| -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); |