diff mbox series

[V3,2/5] net: stmmac: start phylink instance before stmmac_hw_setup()

Message ID 20201207105141.12550-3-qiangqing.zhang@nxp.com (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series patches for stmmac | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Joakim Zhang Dec. 7, 2020, 10:51 a.m. UTC 
From: Fugang Duan <fugang.duan@nxp.com>

Start phylink instance and resume back the PHY to supply
RX clock to MAC before MAC layer initialization by calling
.stmmac_hw_setup(), since DMA reset depends on the RX clock,
otherwise DMA reset cost maximum timeout value then finally
timeout.

Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
---
 .../net/ethernet/stmicro/stmmac/stmmac_main.c    | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ba45fe237512..0cef414f1289 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -5247,6 +5247,14 @@  int stmmac_resume(struct device *dev)
 			return ret;
 	}
 
+	if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
+		rtnl_lock();
+		phylink_start(priv->phylink);
+		/* We may have called phylink_speed_down before */
+		phylink_speed_up(priv->phylink);
+		rtnl_unlock();
+	}
+
 	rtnl_lock();
 	mutex_lock(&priv->lock);
 
@@ -5265,14 +5273,6 @@  int stmmac_resume(struct device *dev)
 	mutex_unlock(&priv->lock);
 	rtnl_unlock();
 
-	if (!device_may_wakeup(priv->device) || !priv->plat->pmt) {
-		rtnl_lock();
-		phylink_start(priv->phylink);
-		/* We may have called phylink_speed_down before */
-		phylink_speed_up(priv->phylink);
-		rtnl_unlock();
-	}
-
 	phylink_mac_change(priv->phylink, true);
 
 	netif_device_attach(ndev);