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[media] af9013: use .get_if_frequency() when possible

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Get IF frequency from tuner if tuner provides it.

Remove TDA18271 and TDA18218 IF frequency hacks since both tuners provides .get_if_frequency().

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Antti Palosaari 2011-11-13 00:26:17 -03:00 committed by Mauro Carvalho Chehab
parent 522fdf7319
commit 6d42b218b4
1 changed files with 9 additions and 32 deletions
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41
drivers/media/dvb/frontends/af9013.c
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@ -303,7 +303,8 @@ error:
return ret;
}
static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw)
static int af9013_set_freq_ctrl(struct af9013_state *state,
struct dvb_frontend *fe)
{
int ret;
u16 addr;
@ -324,37 +325,13 @@ static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw)
bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1;
}
adc_freq = state->config.adc_clock * 1000;
if_sample_freq = state->config.tuner_if * 1000;
adc_freq = state->config.adc_clock * 1000;
/* TDA18271 uses different sampling freq for every bw */
if (state->config.tuner == AF9013_TUNER_TDA18271) {
switch (bw) {
case BANDWIDTH_6_MHZ:
if_sample_freq = 3300000; /* 3.3 MHz */
break;
case BANDWIDTH_7_MHZ:
if_sample_freq = 3500000; /* 3.5 MHz */
break;
case BANDWIDTH_8_MHZ:
default:
if_sample_freq = 4000000; /* 4.0 MHz */
break;
}
} else if (state->config.tuner == AF9013_TUNER_TDA18218) {
switch (bw) {
case BANDWIDTH_6_MHZ:
if_sample_freq = 3000000; /* 3 MHz */
break;
case BANDWIDTH_7_MHZ:
if_sample_freq = 3500000; /* 3.5 MHz */
break;
case BANDWIDTH_8_MHZ:
default:
if_sample_freq = 4000000; /* 4 MHz */
break;
}
}
/* get used IF frequency */
if (fe->ops.tuner_ops.get_if_frequency)
fe->ops.tuner_ops.get_if_frequency(fe, &if_sample_freq);
else
if_sample_freq = state->config.tuner_if * 1000;
while (if_sample_freq > (adc_freq / 2))
if_sample_freq = if_sample_freq - adc_freq;
@ -639,7 +616,7 @@ static int af9013_set_frontend(struct dvb_frontend *fe,
goto error;
/* program frequency control */
ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth);
ret = af9013_set_freq_ctrl(state, fe);
if (ret)
goto error;