net: hns: support deferred probe when no mdio
authorlipeng <lipeng321@huawei.com>
Fri, 28 Apr 2017 06:49:47 +0000 (14:49 +0800)
committerDavid S. Miller <davem@davemloft.net>
Mon, 1 May 2017 02:39:24 +0000 (22:39 -0400)
commit804ffe5c6197fc2696681c597ce096d93eb24af5
tree41e34fb827d6d60c6aad55c7d40757eca80becdf
parent2fdd6bafe37db6b417c9609271db4ea5a92550c0
net: hns: support deferred probe when no mdio

In the hip06 and hip07 SoCs, phy connect to mdio bus.The mdio
module is probed with module_init, and, as such,
is not guaranteed to probe before the HNS driver. So we need
to support deferred probe.

We check for probe deferral in the mac init, so we not init DSAF
when there is no mdio, and free all resource, to later learn that
we need to defer the probe.

Signed-off-by: lipeng <lipeng321@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c