diff options
| author |   Kuninori Morimoto <morimoto.kuninori@renesas.com> | 2009-12-11 11:34:50 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-16 09:27:22 -0200 |
| commit | 88a67c51dfc649c18fc8828970cb4fd09d1871b5 (patch) | |
| tree | 2065ca68091b9d6919ecc00758872dcbe4c87a02 /drivers/media/video/tw9910.c | |
| parent | V4L/DVB (13652): tw9910: Add revision control (diff) | |
| download | linux-dev-88a67c51dfc649c18fc8828970cb4fd09d1871b5.tar.xz linux-dev-88a67c51dfc649c18fc8828970cb4fd09d1871b5.zip | |
V4L/DVB (13653): tw9910: simplify chip ID calculation
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 | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c index e3a4942e0f37..3d8a45f0eb2a 100644 --- a/drivers/media/video/tw9910.c +++ b/drivers/media/video/tw9910.c @@ -863,7 +863,7 @@ static int tw9910_video_probe(struct soc_camera_device *icd, struct i2c_client *client) { struct tw9910_priv *priv = to_tw9910(client); - s32 val; + s32 id; /* * We must have a parent by now. And it cannot be a wrong one. @@ -889,19 +889,20 @@ static int tw9910_video_probe(struct soc_camera_device *icd, * check and show Product ID * So far only revisions 0 and 1 have been seen */ - val = i2c_smbus_read_byte_data(client, ID); - priv->revision = GET_REV(val); + id = i2c_smbus_read_byte_data(client, ID); + priv->revision = GET_REV(id); + id = GET_ID(id); - if (0x0B != GET_ID(val) || + if (0x0B != id || 0x01 < priv->revision) { dev_err(&client->dev, "Product ID error %x:%x\n", - GET_ID(val), priv->revision); + id, priv->revision); return -ENODEV; } dev_info(&client->dev, - "tw9910 Product ID %0x:%0x\n", GET_ID(val), priv->revision); + "tw9910 Product ID %0x:%0x\n", id, priv->revision); icd->vdev->tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL; icd->vdev->current_norm = V4L2_STD_NTSC; |