From mboxrd@z Thu Jan 1 00:00:00 1970 From: sebastian.hesselbarth@gmail.com (Sebastian Hesselbarth) Date: Wed, 20 Nov 2013 21:21:53 +0100 Subject: [PATCH RFC v1 7/7] net: cpsw: resume/suspend PHY on port start/stop In-Reply-To: <1384978913-8052-1-git-send-email-sebastian.hesselbarth@gmail.com> References: <1384978913-8052-1-git-send-email-sebastian.hesselbarth@gmail.com> Message-ID: <1384978913-8052-8-git-send-email-sebastian.hesselbarth@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Network PHYs consume a noticable amount of power. This adds phy_resume on slave_open and phy_suspend on slave_stop to save this power if the port is down anyway. Signed-off-by: Sebastian Hesselbarth --- Cc: David S. Miller Cc: netdev at vger.kernel.org Cc: linux-arm-kernel at lists.infradead.org Cc: linux-kernel at vger.kernel.org --- drivers/net/ethernet/ti/cpsw.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 90d41d2..f1dc54f 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1013,6 +1013,7 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv) } else { dev_info(priv->dev, "phy found : id is : 0x%x\n", slave->phy->phy_id); + phy_resume(slave->phy); phy_start(slave->phy); /* Configure GMII_SEL register */ @@ -1081,6 +1082,7 @@ static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv) if (!slave->phy) return; phy_stop(slave->phy); + phy_suspend(slave->phy); phy_disconnect(slave->phy); slave->phy = NULL; } -- 1.7.2.5