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V4L/DVB (7837): tda18271: fix error handling in init and sleep paths 

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Michael Krufky 2008-05-03 18:20:21 -03:00 committed by Mauro Carvalho Chehab
parent dc9d522a13
commit d35fccaffd
2 changed files with 27 additions and 18 deletions
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7
drivers/media/common/tuners/tda18271-common.c
View File

@ -227,9 +227,8 @@ int tda18271_charge_pump_source(struct dvb_frontend *fe,
regs[r_cp] &= ~0x20;
regs[r_cp] |= ((force & 1) << 5);
tda18271_write_regs(fe, r_cp, 1);
return 0;
return tda18271_write_regs(fe, r_cp, 1);
}
int tda18271_init_regs(struct dvb_frontend *fe)
@ -494,9 +493,7 @@ int tda18271_set_standby_mode(struct dvb_frontend *fe,
sm_lt ? (1 << 6) : 0 |
sm_xt ? (1 << 5) : 0;
tda18271_write_regs(fe, R_EP3, 1);
return 0;
return tda18271_write_regs(fe, R_EP3, 1);
}
/*---------------------------------------------------------------------*/

38
drivers/media/common/tuners/tda18271-fe.c
View File

@ -719,45 +719,56 @@ static int tda18271_ir_cal_init(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
unsigned char *regs = priv->tda18271_regs;
int ret;
tda18271_read_regs(fe);
ret = tda18271_read_regs(fe);
if (ret < 0)
goto fail;
/* test IR_CAL_OK to see if we need init */
if ((regs[R_EP1] & 0x08) == 0)
tda18271_init_regs(fe);
return 0;
ret = tda18271_init_regs(fe);
fail:
return ret;
}
static int tda18271_init(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
int ret;
mutex_lock(&priv->lock);
/* power up */
tda18271_set_standby_mode(fe, 0, 0, 0);
ret = tda18271_set_standby_mode(fe, 0, 0, 0);
if (ret < 0)
goto fail;
/* initialization */
tda18271_ir_cal_init(fe);
ret = tda18271_ir_cal_init(fe);
if (ret < 0)
goto fail;
if (priv->id == TDA18271HDC2)
tda18271c2_rf_cal_init(fe);
fail:
mutex_unlock(&priv->lock);
return 0;
return ret;
}
static int tda18271_tune(struct dvb_frontend *fe,
struct tda18271_std_map_item *map, u32 freq, u32 bw)
{
struct tda18271_priv *priv = fe->tuner_priv;
int ret;
tda_dbg("freq = %d, ifc = %d, bw = %d, agc_mode = %d, std = %d\n",
freq, map->if_freq, bw, map->agc_mode, map->std);
tda18271_init(fe);
ret = tda18271_init(fe);
if (ret < 0)
goto fail;
mutex_lock(&priv->lock);
@ -772,8 +783,8 @@ static int tda18271_tune(struct dvb_frontend *fe,
tda18271_channel_configuration(fe, map, freq, bw);
mutex_unlock(&priv->lock);
return 0;
fail:
return ret;
}
/* ------------------------------------------------------------------ */
@ -905,16 +916,17 @@ fail:
static int tda18271_sleep(struct dvb_frontend *fe)
{
struct tda18271_priv *priv = fe->tuner_priv;
int ret;
mutex_lock(&priv->lock);
/* standby mode w/ slave tuner output
* & loop thru & xtal oscillator on */
tda18271_set_standby_mode(fe, 1, 0, 0);
ret = tda18271_set_standby_mode(fe, 1, 0, 0);
mutex_unlock(&priv->lock);
return 0;
return ret;
}
static int tda18271_release(struct dvb_frontend *fe)