diff options
Diffstat (limited to 'drivers/media/video/saa7115.c')
| -rw-r--r-- | drivers/media/video/saa7115.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/media/video/saa7115.c b/drivers/media/video/saa7115.c index c5719f7bd1ac..f28398dd9d93 100644 --- a/drivers/media/video/saa7115.c +++ b/drivers/media/video/saa7115.c @@ -1464,8 +1464,6 @@ static int saa711x_attach(struct i2c_adapter *adapter, int address, int kind) client->driver = &i2c_driver_saa711x; snprintf(client->name, sizeof(client->name) - 1, "saa7115"); - v4l_dbg(1, debug, client, "detecting saa7115 client on address 0x%x\n", address << 1); - for (i=0;i<0x0f;i++) { saa711x_write(client, 0, i); name[i] = (saa711x_read(client, 0) &0x0f) +'0'; @@ -1477,6 +1475,13 @@ static int saa711x_attach(struct i2c_adapter *adapter, int address, int kind) saa711x_write(client, 0, 5); chip_id = saa711x_read(client, 0) & 0x0f; + /* Check whether this chip is part of the saa711x series */ + if (memcmp(name, "1f711", 5)) { + v4l_dbg(1, debug, client, "chip found @ 0x%x (ID %s) does not match a known saa711x chip.\n", + address << 1, name); + return 0; + } + snprintf(client->name, sizeof(client->name) - 1, "saa711%d",chip_id); v4l_info(client, "saa711%d found (%s) @ 0x%x (%s)\n", chip_id, name, address << 1, adapter->name); |