diff options
Diffstat (limited to 'linux/drivers/media/video/saa7115.c')
| -rw-r--r-- | linux/drivers/media/video/saa7115.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/linux/drivers/media/video/saa7115.c b/linux/drivers/media/video/saa7115.c index b02c43278..fc4c17bbd 100644 --- a/linux/drivers/media/video/saa7115.c +++ b/linux/drivers/media/video/saa7115.c @@ -1467,14 +1467,19 @@ static int saa7115_probe(struct i2c_client *client, struct saa711x_state *state; int i; char name[17]; - u8 chip_id; + char chip_id; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) + int autodetect = !id || id->driver_data == 1; +#endif /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; +#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 26) snprintf(client->name, sizeof(client->name) - 1, "saa7115"); +#endif for (i = 0; i < 0x0f; i++) { saa711x_write(client, 0, i); name[i] = (saa711x_read(client, 0) & 0x0f) + '0'; @@ -1483,8 +1488,7 @@ static int saa7115_probe(struct i2c_client *client, } name[i] = '\0'; - saa711x_write(client, 0, 5); - chip_id = saa711x_read(client, 0) & 0x0f; + chip_id = name[5]; /* Check whether this chip is part of the saa711x series */ if (memcmp(name, "1f711", 5)) { @@ -1493,8 +1497,16 @@ static int saa7115_probe(struct i2c_client *client, return -ENODEV; } - 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, client->addr << 1, client->adapter->name); +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) + /* Safety check */ + if (!autodetect && id->name[6] != chip_id) { + v4l_warn(client, "found saa711%c while %s was expected\n", + chip_id, id->name); + } +#endif + snprintf(client->name, sizeof(client->name), "saa711%c", chip_id); + v4l_info(client, "saa711%c found (%s) @ 0x%x (%s)\n", chip_id, name, + client->addr << 1, client->adapter->name); state = kzalloc(sizeof(struct saa711x_state), GFP_KERNEL); i2c_set_clientdata(client, state); @@ -1510,19 +1522,19 @@ static int saa7115_probe(struct i2c_client *client, state->hue = 0; state->sat = 64; switch (chip_id) { - case 1: + case '1': state->ident = V4L2_IDENT_SAA7111; break; - case 3: + case '3': state->ident = V4L2_IDENT_SAA7113; break; - case 4: + case '4': state->ident = V4L2_IDENT_SAA7114; break; - case 5: + case '5': state->ident = V4L2_IDENT_SAA7115; break; - case 8: + case '8': state->ident = V4L2_IDENT_SAA7118; break; default: @@ -1564,6 +1576,19 @@ static int saa7115_remove(struct i2c_client *client) return 0; } +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) +static const struct i2c_device_id saa7115_id[] = { + { "saa711x", 1 }, /* autodetect */ + { "saa7111", 0 }, + { "saa7113", 0 }, + { "saa7114", 0 }, + { "saa7115", 0 }, + { "saa7118", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, saa7115_id); + +#endif static struct v4l2_i2c_driver_data v4l2_i2c_data = { .name = "saa7115", .driverid = I2C_DRIVERID_SAA711X, @@ -1573,6 +1598,9 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = { #ifdef I2C_CLASS_TV_ANALOG .legacy_class = I2C_CLASS_TV_ANALOG | I2C_CLASS_TV_DIGITAL, #endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26) + .id_table = saa7115_id, +#endif }; #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0) |