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Subject[PATCH RFC v1 6/7] net: mvneta: resume/suspend PHY on port start/stop
Date
Network PHYs consume a noticable amount of power. This adds phy_resume
on start_dev and phy_suspend on stop_dev to save this power if the
port is down anyway.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
---
drivers/net/ethernet/marvell/mvneta.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index b8e232b..8688e91 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2194,6 +2194,7 @@ static void mvneta_start_dev(struct mvneta_port *pp)
mvreg_write(pp, MVNETA_INTR_NEW_MASK,
MVNETA_RX_INTR_MASK(rxq_number));

+ phy_resume(pp->phy_dev);
phy_start(pp->phy_dev);
netif_tx_start_all_queues(pp->dev);
}
@@ -2201,6 +2202,7 @@ static void mvneta_start_dev(struct mvneta_port *pp)
static void mvneta_stop_dev(struct mvneta_port *pp)
{
phy_stop(pp->phy_dev);
+ phy_suspend(pp->phy_dev);

napi_disable(&pp->napi);

--
1.7.2.5


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