net: ieee802154: adf7242: Fix erroneous RX enable

Only enable RX mode if the netdev is opened.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>

drivers/net/ieee802154/adf7242.c

@@ -719,7 +719,10 @@ static int adf7242_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
 	adf7242_write_reg(lp, REG_CH_FREQ1, freq >> 8);
 	adf7242_write_reg(lp, REG_CH_FREQ2, freq >> 16);
 
-	return adf7242_cmd(lp, CMD_RC_RX);
+	if (test_bit(FLAG_START, &lp->flags))
+		return adf7242_cmd_rx(lp);
+	else
+		return adf7242_cmd(lp, CMD_RC_PHY_RDY);
 }
 
 static int adf7242_set_hw_addr_filt(struct ieee802154_hw *hw,