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[media] Sanity check when initializing DVB-S/S2 demodulator

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Avoid error message:
cxd2841er_read_status_s(): invalid state 1
Always force demod to shutdown state before initializing

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Abylay Ospan 2016-04-05 15:02:37 -03:00 committed by Mauro Carvalho Chehab
parent c5ea46dae9
commit 30ae3307ad
1 changed files with 12 additions and 0 deletions
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12
drivers/media/dvb-frontends/cxd2841er.c
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@ -3133,6 +3133,18 @@ static int cxd2841er_init_s(struct dvb_frontend *fe)
{
struct cxd2841er_priv *priv = fe->demodulator_priv;
/* sanity. force demod to SHUTDOWN state */
if (priv->state == STATE_SLEEP_S) {
dev_dbg(&priv->i2c->dev, "%s() forcing sleep->shutdown\n",
__func__);
cxd2841er_sleep_s_to_shutdown(priv);
} else if (priv->state == STATE_ACTIVE_S) {
dev_dbg(&priv->i2c->dev, "%s() forcing active->sleep->shutdown\n",
__func__);
cxd2841er_active_s_to_sleep_s(priv);
cxd2841er_sleep_s_to_shutdown(priv);
}
dev_dbg(&priv->i2c->dev, "%s()\n", __func__);
cxd2841er_shutdown_to_sleep_s(priv);
/* SONY_DEMOD_CONFIG_SAT_IFAGCNEG set to 1 */