if the configuration option 'delay_cal' is set, prevent any register
access during attach(), delaying both IR & RF calibration until init()
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@xxxxxxxxxxx>
---
drivers/media/tuners/tda18271-fe.c | 5 +++++
drivers/media/tuners/tda18271.h | 5 +++++
2 files changed, 10 insertions(+)
diff --git a/drivers/media/tuners/tda18271-fe.c b/drivers/media/tuners/tda18271-fe.c
index de21197..ca202da 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 640bae4..89b6c6d 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;
};
--
1.7.9.5
--
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