diff options
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/saa7115.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/media/i2c/saa7115.c b/drivers/media/i2c/saa7115.c index 289f460801db..ca2a863a6d3e 100644 --- a/drivers/media/i2c/saa7115.c +++ b/drivers/media/i2c/saa7115.c @@ -1640,6 +1640,36 @@ static int saa711x_detect_chip(struct i2c_client *client, } } + /* Check if it is a gm7113c */ + if (!memcmp(name, "0000", 4)) { + chip_id = 0; + for (i = 0; i < 4; i++) { + chip_id = chip_id << 1; + chip_id |= (chip_ver[i] & 0x80) ? 1 : 0; + } + + /* + * Note: From the datasheet, only versions 1 and 2 + * exists. However, tests on a device labeled as: + * "GM7113C 1145" returned "10" on all 16 chip + * version (reg 0x00) reads. So, we need to also + * accept at least verion 0. For now, let's just + * assume that a device that returns "0000" for + * the lower nibble is a gm7113c. + */ + + strlcpy(name, "gm7113c", size); + + if (!autodetect && strcmp(name, id->name)) + return -EINVAL; + + v4l_dbg(1, debug, client, + "It seems to be a %s chip (%*ph) @ 0x%x.\n", + name, 16, chip_ver, client->addr << 1); + + return V4L2_IDENT_GM7113C; + } + /* Chip was not discovered. Return its ID and don't bind */ v4l_dbg(1, debug, client, "chip %*ph @ 0x%x is unknown.\n", 16, chip_ver, client->addr << 1); @@ -1669,6 +1699,11 @@ static int saa711x_probe(struct i2c_client *client, if (ident < 0) return ident; + if (ident == V4L2_IDENT_GM7113C) { + v4l_warn(client, "%s not yet supported\n", name); + return -ENODEV; + } + strlcpy(client->name, name, sizeof(client->name)); state = devm_kzalloc(&client->dev, sizeof(*state), GFP_KERNEL); @@ -1754,6 +1789,7 @@ static const struct i2c_device_id saa711x_id[] = { { "saa7114", 0 }, { "saa7115", 0 }, { "saa7118", 0 }, + { "gm7113c", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, saa711x_id); |
