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authorKuninori Morimoto <morimoto.kuninori@renesas.com>2009-12-11 11:34:50 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-12-16 09:27:22 -0200
commit88a67c51dfc649c18fc8828970cb4fd09d1871b5 (patch)
tree2065ca68091b9d6919ecc00758872dcbe4c87a02 /drivers/media/video/tw9910.c
parent6d74e5f361bdacfdcfe14220868d562368aaadc2 (diff)
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.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/media/video/tw9910.c b/drivers/media/video/tw9910.c
index e3a4942e0f3..3d8a45f0eb2 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;