xc2028 power state handling is broken.
I2C read/write operations fail when the device is powered down at that moment,
which causes the get_rf_strength and get_rf_strength callbacks (and probably
others, too) to fail.
I don't know how to fix this properly, so disable the device power-down until
anyone comes up with a better solution.
Signed-off-by: Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx>
---
drivers/media/tuners/tuner-xc2028.c | 4 +++-
1 Datei geändert, 3 Zeilen hinzugefügt(+), 1 Zeile entfernt(-)
diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index 4be5cf8..cb3dc5e 100644
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -1291,16 +1291,18 @@ static int xc2028_sleep(struct dvb_frontend *fe)
dump_stack();
}
+ /* FIXME: device power-up/-down handling is broken */
+/*
mutex_lock(&priv->lock);
if (priv->firm_version < 0x0202)
rc = send_seq(priv, {0x00, XREG_POWER_DOWN, 0x00, 0x00});
else
rc = send_seq(priv, {0x80, XREG_POWER_DOWN, 0x00, 0x00});
-
priv->state = XC2028_SLEEP;
mutex_unlock(&priv->lock);
+*/
return rc;
}
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
