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net: hns: Fix wrong read accesses via Clause 45 MDIO protocol

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When reading phy registers via Clause 45 MDIO protocol, after write
address operation, the driver use another write address operation, so
can not read the right value of any phy registers. This patch fixes it.

Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yonglong Liu 2019-01-26 17:18:27 +08:00 committed by David S. Miller
parent ed29ca8b95
commit cec8abba13
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/hisilicon/hns_mdio.c
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@ -321,7 +321,7 @@ static int hns_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
}
hns_mdio_cmd_write(mdio_dev, is_c45,
MDIO_C45_WRITE_ADDR, phy_id, devad);
MDIO_C45_READ, phy_id, devad);
}
/* Step 5: waitting for MDIO_COMMAND_REG 's mdio_start==0,*/