From: Florian Fainelli f.fainelli@gmail.com
[ Upstream commit 225c657945c4a6307741cb3cc89467eadcc26e9b ]
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 during bcmgenet_suspend().
Restore the call to phy_stop() but make it conditional on being called from the close or suspend path.
Fixes: c96e731c93ff ("net: bcmgenet: connect and disconnect from the PHY state machine") Fixes: 93e0401e0fc0 ("net: bcmgenet: Remove phy_stop() from bcmgenet_netif_stop()") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Reviewed-by: Pavan Chebbi pavan.chebbi@broadcom.com Link: https://lore.kernel.org/r/20230515025608.2587012-1-f.fainelli@gmail.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 35bf840716d57..9d4f406408c9d 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3401,7 +3401,7 @@ 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);
@@ -3416,6 +3416,8 @@ 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);
@@ -3441,7 +3443,7 @@ 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); @@ -4241,7 +4243,7 @@ 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);