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[media] si2157: Move chip initialization to si2157_init

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Move chip initialization related code from si2157_set_params to
si2157_init.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Olli Salonen 2014-07-13 10:52:19 -03:00 committed by Mauro Carvalho Chehab
parent c9cb0820d5
commit b154121c64
1 changed files with 30 additions and 41 deletions
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71
drivers/media/tuners/si2157.c
View file

@ -80,12 +80,41 @@ static int si2157_cmd_execute(struct si2157 *s, struct si2157_cmd *cmd)
static int si2157_init(struct dvb_frontend *fe)
{
struct si2157 *s = fe->tuner_priv;
int ret;
struct si2157_cmd cmd;
dev_dbg(&s->client->dev, "%s:\n", __func__);
/* configure? */
memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
cmd.wlen = 15;
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
/* query chip revision */
memcpy(cmd.args, "\x02", 1);
cmd.wlen = 1;
cmd.rlen = 13;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
/* reboot the tuner with new firmware? */
memcpy(cmd.args, "\x01\x01", 2);
cmd.wlen = 2;
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
s->active = true;
return 0;
err:
dev_dbg(&s->client->dev, "%s: failed=%d\n", __func__, ret);
return ret;
}
static int si2157_sleep(struct dvb_frontend *fe)
@ -128,48 +157,8 @@ static int si2157_set_params(struct dvb_frontend *fe)
goto err;
}
/* configure? */
cmd.args[0] = 0xc0;
cmd.args[1] = 0x00;
cmd.args[2] = 0x0c;
cmd.args[3] = 0x00;
cmd.args[4] = 0x00;
cmd.args[5] = 0x01;
cmd.args[6] = 0x01;
cmd.args[7] = 0x01;
cmd.args[8] = 0x01;
cmd.args[9] = 0x01;
cmd.args[10] = 0x01;
cmd.args[11] = 0x02;
cmd.args[12] = 0x00;
cmd.args[13] = 0x00;
cmd.args[14] = 0x01;
cmd.wlen = 15;
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
cmd.args[0] = 0x02;
cmd.wlen = 1;
cmd.rlen = 13;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
cmd.args[0] = 0x01;
cmd.args[1] = 0x01;
cmd.wlen = 2;
cmd.rlen = 1;
ret = si2157_cmd_execute(s, &cmd);
if (ret)
goto err;
/* set frequency */
cmd.args[0] = 0x41;
cmd.args[1] = 0x00;
cmd.args[2] = 0x00;
cmd.args[3] = 0x00;
memcpy(cmd.args, "\x41\x00\x00\x00\x00\x00\x00\x00", 8);
cmd.args[4] = (c->frequency >> 0) & 0xff;
cmd.args[5] = (c->frequency >> 8) & 0xff;
cmd.args[6] = (c->frequency >> 16) & 0xff;