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V4L/DVB (9419): Bug: unnecessary large current causes large phasor errors

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Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Manu Abraham 2007-10-08 19:04:03 -03:00 committed by Mauro Carvalho Chehab
parent 6199ceef8b
commit cf6efeb670
1 changed files with 12 additions and 1 deletions
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13
drivers/media/dvb/frontends/tda8261.c
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@ -130,6 +130,10 @@ static int tda8261_set_state(struct dvb_frontend *fe,
* (to account for half channel spacing on either side)
*/
frequency = tstate->frequency;
if ((frequency < 950000) || (frequency > 2150000)) {
printk("%s: Frequency beyond limits, frequency=%d\n", __func__, frequency);
return -EINVAL;
}
N = (frequency + (div_tab[config->step_size] - 1)) / div_tab[config->step_size];
printk("%s: Step size=%d, Divider=%d, PG=0x%02x (%d)\n",
__func__, config->step_size, div_tab[config->step_size], N, N);
@ -137,7 +141,14 @@ static int tda8261_set_state(struct dvb_frontend *fe,
buf[0] = (N >> 8) & 0xff;
buf[1] = N & 0xff;
buf[2] = (0x01 << 7) | ((ref_div[config->step_size] & 0x07) << 1);
buf[3] = 0xc0;
if (frequency < 1450000)
buf[3] = 0x00;
if (frequency < 2000000)
buf[3] = 0x40;
if (frequency < 2150000)
buf[3] = 0x80;
/* Set params */
if ((err = tda8261_write(state, buf)) < 0) {
printk("%s: I/O Error\n", __func__);