diff options
| author | Steven Toth <stoth@hauppauge.com> | 2008-01-10 03:43:11 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2008-01-25 19:04:50 -0200 |
| commit | a57ed8a1f7381aa7e1bec6c55d5f119706f2982d (patch) | |
| tree | 0d9e8777cd884f8faf048c2b892891acec92d8cd /drivers/media | |
| parent | 7b8880140ff6aec6a5bec7929b03ce0b96a7c79a (diff) | |
V4L/DVB (7008): s5h1409: Ensure the silicon is initialized during attach
If not it impacts on analog tuner quality.
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/dvb/frontends/s5h1409.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/media/dvb/frontends/s5h1409.c b/drivers/media/dvb/frontends/s5h1409.c index d3b148ddad2..3391777e0b2 100644 --- a/drivers/media/dvb/frontends/s5h1409.c +++ b/drivers/media/dvb/frontends/s5h1409.c @@ -750,6 +750,7 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, struct i2c_adapter* i2c) { struct s5h1409_state* state = NULL; + u16 reg; /* allocate memory for the internal state */ state = kmalloc(sizeof(struct s5h1409_state), GFP_KERNEL); @@ -763,7 +764,8 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, state->if_freq = S5H1409_VSB_IF_FREQ; /* check if the demod exists */ - if (s5h1409_readreg(state, 0x04) != 0x0066) + reg = s5h1409_readreg(state, 0x04); + if ((reg != 0x0066) && (reg != 0x007f)) goto error; /* create dvb_frontend */ @@ -771,8 +773,14 @@ struct dvb_frontend* s5h1409_attach(const struct s5h1409_config* config, sizeof(struct dvb_frontend_ops)); state->frontend.demodulator_priv = state; + if (s5h1409_init(&state->frontend) != 0) { + printk(KERN_ERR "%s: Failed to initialize correctly\n", + __FUNCTION__); + goto error; + } + /* Note: Leaving the I2C gate open here. */ - s5h1409_writereg(state, 0xf3, 1); + s5h1409_i2c_gate_ctrl(&state->frontend, 1); return &state->frontend; |