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sh_eth: do not reset PHY needlessly 

There's no need anymore to call phy_init_hw() to reset/resume the PHY from the
driver, as the call chain in phylib already has reached it, and so reset/resumed
the PHY (even resuming it twice). This duplicate reset is not only  needless, it
e.g. clears the PHY's interrupt enables just setup by phylib and so prevents the
expected IRQs from the PHY.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sergei Shtylyov 2013-12-20 01:41:12 +03:00 committed by David S. Miller
parent 18be099bad
commit 4174ecd78f
1 changed files with 0 additions and 5 deletions
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5
drivers/net/ethernet/renesas/sh_eth.c
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@ -1703,11 +1703,6 @@ static int sh_eth_phy_start(struct net_device *ndev)
if (ret) if (ret)
return ret; return ret;
/* reset phy - this also wakes it from PDOWN */
ret = phy_init_hw(mdp->phydev);
if (ret)
return ret;
phy_start(mdp->phydev); phy_start(mdp->phydev);
return 0; return 0;