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| author | Michael Krufky <mkrufky@linuxtv.org> | 2012-10-02 04:50:37 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-02 20:16:04 +0200 |
| commit | 6b82e0cfc15ec7e635eea83b04e1544ab64f81ad (patch) | |
| tree | b123695c84c829ef6f32de02c0dd4e990701fc06 /drivers/media | |
| parent | [media] MAINTAINERS: add Michael Krufky as tda827x maintainer (diff) | |
| download | linux-6b82e0cfc15ec7e635eea83b04e1544ab64f81ad.tar.xz linux-6b82e0cfc15ec7e635eea83b04e1544ab64f81ad.zip | |
[media] tda18271: delay IR & RF calibration until init() if delay_cal is set
if the configuration option 'delay_cal' is set, delay both IR & RF
calibration until init() is called.
both module option 'cal' or configuration option 'rf_cal_on_startup'
will override this delay. it makes no sense to mix 'delay_cal' with
'rf_cal_on_startup' as these options conflict with each other.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/tuners/tda18271-fe.c | 5 | ||||
| -rw-r--r-- | drivers/media/tuners/tda18271.h | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/tuners/tda18271-fe.c b/drivers/media/tuners/tda18271-fe.c index de21197ca4b9..ca202da9d4c9 100644 --- a/drivers/media/tuners/tda18271-fe.c +++ b/drivers/media/tuners/tda18271-fe.c @@ -1278,6 +1278,11 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, if (tda_fail(ret)) goto fail; + /* if delay_cal is set, delay IR & RF calibration until init() + * module option 'cal' overrides this delay */ + if ((cfg->delay_cal) && (!tda18271_need_cal_on_startup(cfg))) + break; + mutex_lock(&priv->lock); tda18271_init_regs(fe); diff --git a/drivers/media/tuners/tda18271.h b/drivers/media/tuners/tda18271.h index 640bae4e6a5a..89b6c6d93fec 100644 --- a/drivers/media/tuners/tda18271.h +++ b/drivers/media/tuners/tda18271.h @@ -105,6 +105,11 @@ struct tda18271_config { /* force rf tracking filter calibration on startup */ unsigned int rf_cal_on_startup:1; + /* prevent any register access during attach(), + * delaying both IR & RF calibration until init() + * module option 'cal' overrides this delay */ + unsigned int delay_cal:1; + /* interface to saa713x / tda829x */ unsigned int config; }; |