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net: bcmgenet: power down and up GPHY during suspend/resume

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In case the interface is not used, power down the integrated GPHY during
suspend. Similarly to bcmgenet_open(), bcmgenet_resume() powers on the GPHY
prior to any UniMAC activity.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2015-03-23 15:09:57 -07:00
committed by David S. Miller
parent a642c4f790
commit a6f31f5e3b
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/broadcom/genet/bcmgenet.c
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@@ -3107,6 +3107,8 @@ static int bcmgenet_suspend(struct device *d)
if (device_may_wakeup(d) && priv->wolopts) { if (device_may_wakeup(d) && priv->wolopts) {
ret = bcmgenet_power_down(priv, GENET_POWER_WOL_MAGIC); ret = bcmgenet_power_down(priv, GENET_POWER_WOL_MAGIC);
clk_prepare_enable(priv->clk_wol); clk_prepare_enable(priv->clk_wol);
} else if (phy_is_internal(priv->phydev)) {
ret = bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
} }
/* Turn off the clocks */ /* Turn off the clocks */
@@ -3131,6 +3133,12 @@ static int bcmgenet_resume(struct device *d)
if (ret) if (ret)
return ret; return ret;
/* If this is an internal GPHY, power it back on now, before UniMAC is
* brought out of reset as absolutely no UniMAC activity is allowed
*/
if (phy_is_internal(priv->phydev))
bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
bcmgenet_umac_reset(priv); bcmgenet_umac_reset(priv);
ret = init_umac(priv); ret = init_umac(priv);