From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@broadcom.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net] net: bcmsysport: Indicate MAC is in charge of PHY PM
Date: Tue, 25 Oct 2022 16:42:01 -0700 [thread overview]
Message-ID: <20221025234201.2549360-1-f.fainelli@gmail.com> (raw)
Avoid the PHY library call unnecessarily into the suspend/resume
functions by setting phydev->mac_managed_pm to true. The SYSTEMPORT
driver essentially does exactly what mdio_bus_phy_resume() does by
calling phy_resume().
Fixes: fba863b81604 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/net/ethernet/broadcom/bcmsysport.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 867f14c30e09..425d6ccd5413 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -1991,6 +1991,9 @@ static int bcm_sysport_open(struct net_device *dev)
goto out_clk_disable;
}
+ /* Indicate that the MAC is responsible for PHY PM */
+ phydev->mac_managed_pm = true;
+
/* Reset house keeping link status */
priv->old_duplex = -1;
priv->old_link = -1;
--
2.25.1
next reply other threads:[~2022-10-25 23:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-25 23:42 Florian Fainelli [this message]
2022-10-27 14:00 ` patchwork-bot+netdevbpf
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