The AVDD regulator is only enabled when the RF section is active TX_ON
(PLL_ON) state. Since commit 7dcbd22a97eb0689e6c583ad630ae0e7341e34c1
("ieee802154: ensure that first RF212 state comes from TRX_OFF").
We are in TRX_OFF state at the time at86rf230_hw_init is run.
Note that this test would only fail in case of a severe hardware
malfunction (faulty/shorted power supply, etc.) so it wasn't all that
useful in the first place.
Signed-off-by: Alexander Aring <alex.ar...@gmail.com>
Reviewed-by: Werner Almesberger <wer...@almesberger.net>
---
drivers/net/ieee802154/at86rf230.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/net/ieee802154/at86rf230.c
b/drivers/net/ieee802154/at86rf230.c
index 430bb0d..e102eef 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -1025,14 +1025,6 @@ static int at86rf230_hw_init(struct at86rf230_local *lp)
return -EINVAL;
}
- rc = at86rf230_read_subreg(lp, SR_AVDD_OK, &status);
- if (rc)
- return rc;
- if (!status) {
- dev_err(&lp->spi->dev, "AVDD error\n");
- return -EINVAL;
- }
-
return 0;
}
--
1.9.2
------------------------------------------------------------------------------
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