diff options
Diffstat (limited to 'drivers/media/video/tda8290.c')
| -rw-r--r-- | drivers/media/video/tda8290.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c index abad3d5b04f..2aeae864edc 100644 --- a/drivers/media/video/tda8290.c +++ b/drivers/media/video/tda8290.c @@ -135,7 +135,7 @@ static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq) i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x60; - reg2[1] = 0x7f; + reg2[1] = 0x3f; i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x80; @@ -534,8 +534,8 @@ int tda8290_init(struct i2c_client *c) } if (tuner_addrs == 0) { tuner_addrs = 0x61; - tuner_info ("Could not clearly identify tda8290/8275 tuner address.\n"); - return -1; + tuner_info ("could not clearly identify tuner address, defaulting to %x\n", + tuner_addrs); } else { tuner_addrs = tuner_addrs & 0xff; tuner_info ("setting tuner address to %x\n", tuner_addrs); @@ -567,6 +567,30 @@ int tda8290_init(struct i2c_client *c) return 0; } +int tda8290_probe(struct i2c_client *c) +{ + unsigned char soft_reset[] = { 0x00, 0x00 }; + unsigned char easy_mode_b[] = { 0x01, 0x02 }; + unsigned char easy_mode_g[] = { 0x01, 0x04 }; + unsigned char addr_dto_lsb = 0x07; + unsigned char data; + + i2c_master_send(c, easy_mode_b, 2); + i2c_master_send(c, soft_reset, 2); + i2c_master_send(c, &addr_dto_lsb, 1); + i2c_master_recv(c, &data, 1); + if (data == 0) { + i2c_master_send(c, easy_mode_g, 2); + i2c_master_send(c, soft_reset, 2); + i2c_master_send(c, &addr_dto_lsb, 1); + i2c_master_recv(c, &data, 1); + if (data == 0x7b) { + return 0; + } + } + return -1; +} + /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- |