mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
[media] si2165: only write agc registers after reset before start_syncro
Datasheet says they must be rewritten after reset. But it only makes sense to write them when trying to tune afterwards. Signed-off-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
parent
a5293dbd70
commit
eae56684a0
1 changed files with 15 additions and 17 deletions
|
@ -690,23 +690,6 @@ static int si2165_init(struct dvb_frontend *fe)
|
|||
goto error;
|
||||
}
|
||||
|
||||
/* write adc values after each reset*/
|
||||
ret = si2165_writereg8(state, 0x012a, 0x46);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
ret = si2165_writereg8(state, 0x012c, 0x00);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
ret = si2165_writereg8(state, 0x012e, 0x0a);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
ret = si2165_writereg8(state, 0x012f, 0xff);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
ret = si2165_writereg8(state, 0x0123, 0x70);
|
||||
if (ret < 0)
|
||||
goto error;
|
||||
|
||||
return 0;
|
||||
error:
|
||||
return ret;
|
||||
|
@ -788,6 +771,14 @@ static int si2165_set_if_freq_shift(struct si2165_state *state, u32 IF)
|
|||
return si2165_writereg32(state, 0x00e8, reg_value);
|
||||
}
|
||||
|
||||
static const struct si2165_reg_value_pair agc_rewrite[] = {
|
||||
{ 0x012a, 0x46 },
|
||||
{ 0x012c, 0x00 },
|
||||
{ 0x012e, 0x0a },
|
||||
{ 0x012f, 0xff },
|
||||
{ 0x0123, 0x70 }
|
||||
};
|
||||
|
||||
static int si2165_set_frontend(struct dvb_frontend *fe)
|
||||
{
|
||||
int ret;
|
||||
|
@ -924,6 +915,13 @@ static int si2165_set_frontend(struct dvb_frontend *fe)
|
|||
ret = si2165_writereg32(state, 0x0384, 0x00000000);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* write adc values after each reset*/
|
||||
ret = si2165_write_reg_list(state, agc_rewrite,
|
||||
ARRAY_SIZE(agc_rewrite));
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* start_synchro */
|
||||
ret = si2165_writereg8(state, 0x02e0, 0x01);
|
||||
if (ret < 0)
|
||||
|
|
Loading…
Reference in a new issue