atusb: don't change csma settings while set channel

This patch fixes the behaviour to not overwrite csma settings when
set channel afterwards.

Cc: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

diff --git a/drivers/net/ieee802154/atusb.c b/drivers/net/ieee802154/atusb.c
index 52c9051..1056ed1 100644 (file)
--- a/drivers/net/ieee802154/atusb.c
+++ b/drivers/net/ieee802154/atusb.c
@@ -366,11 +366,7 @@ static int atusb_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
        struct atusb *atusb = hw->priv;
        int ret;
 
-       /* This implicitly sets the CCA (Clear Channel Assessment) mode to 0,
-        * "Mode 3a, Carrier sense OR energy above threshold".
-        * We should probably make this configurable. @@@
-        */
-       ret = atusb_write_reg(atusb, RG_PHY_CC_CCA, channel);
+       ret = atusb_write_subreg(atusb, SR_CHANNEL, channel);
        if (ret < 0)
                return ret;
        msleep(1);      /* @@@ ugly synchronization */