[PATCH net] net: bcmgenet: Restore phy_stop() depending upon suspend/close

From: Florian Fainelli
Date: Tue May 09 2023 - 19:00:01 EST


Removing the phy_stop() from bcmgenet_netif_stop() ended up causing
warnings from the PHY library that phy_start() is called from the
RUNNING state since we are no longer stopping the PHY state machine.

Restore the call to phy_stop() but make it conditional on being called
fro the close or suspend path.

Fixes: 93e0401e0fc0 ("net: bcmgenet: Remove phy_stop() from bcmgenet_netif_stop()")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index bbd9d4b73402..a6fb913fa32e 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -3462,7 +3462,7 @@ static int bcmgenet_open(struct net_device *dev)
return ret;
}

-static void bcmgenet_netif_stop(struct net_device *dev)
+static void bcmgenet_netif_stop(struct net_device *dev, bool stop_phy)
{
struct bcmgenet_priv *priv = netdev_priv(dev);

@@ -3477,6 +3477,8 @@ static void bcmgenet_netif_stop(struct net_device *dev)
/* Disable MAC transmit. TX DMA disabled must be done before this */
umac_enable_set(priv, CMD_TX_EN, false);

+ if (stop_phy)
+ phy_stop(dev->phydev);
bcmgenet_disable_rx_napi(priv);
bcmgenet_intr_disable(priv);

@@ -3497,7 +3499,7 @@ static int bcmgenet_close(struct net_device *dev)

netif_dbg(priv, ifdown, dev, "bcmgenet_close\n");

- bcmgenet_netif_stop(dev);
+ bcmgenet_netif_stop(dev, false);

/* Really kill the PHY state machine and disconnect from it */
phy_disconnect(dev->phydev);
@@ -4315,7 +4317,7 @@ static int bcmgenet_suspend(struct device *d)

netif_device_detach(dev);

- bcmgenet_netif_stop(dev);
+ bcmgenet_netif_stop(dev, true);

if (!device_may_wakeup(d))
phy_suspend(dev->phydev);
--
2.34.1