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* [PATCH net v1 1/1] net: stmmac: fix EEE init issue when paired with EEE capable PHYs
@ 2021-09-30  6:44 ` Wong Vee Khee
  0 siblings, 0 replies; 8+ messages in thread
From: Wong Vee Khee @ 2021-09-30  6:44 UTC (permalink / raw)
  To: Giuseppe Cavallaro, Alexandre Torgue, Jose Abreu,
	David S . Miller, Jakub Kicinski, Maxime Coquelin
  Cc: netdev, linux-stm32, linux-arm-kernel, linux-kernel,
	Michael Sit Wei Hong, Wong Vee Khee

When STMMAC is paired with Energy-Efficient Ethernet(EEE) capable PHY,
and the PHY is advertising EEE by default, we need to enable EEE on the
xPCS side too, instead of having user to manually trigger the enabling
config via ethtool.

Fixed this by adding xpcs_config_eee() call in stmmac_eee_init().

Fixes: 7617af3d1a5e ("net: pcs: Introducing support for DWC xpcs Energy Efficient Ethernet")
Cc: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 553c4403258a..981ccf47dcea 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -486,6 +486,10 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
 		timer_setup(&priv->eee_ctrl_timer, stmmac_eee_ctrl_timer, 0);
 		stmmac_set_eee_timer(priv, priv->hw, STMMAC_DEFAULT_LIT_LS,
 				     eee_tw_timer);
+		if (priv->hw->xpcs)
+			xpcs_config_eee(priv->hw->xpcs,
+					priv->plat->mult_fact_100ns,
+					true);
 	}
 
 	if (priv->plat->has_gmac4 && priv->tx_lpi_timer <= STMMAC_ET_MAX) {
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2021-10-05 11:18 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-30  6:44 [PATCH net v1 1/1] net: stmmac: fix EEE init issue when paired with EEE capable PHYs Wong Vee Khee
2021-09-30  6:44 ` Wong Vee Khee
2021-09-30 13:20 ` patchwork-bot+netdevbpf
2021-09-30 13:20   ` patchwork-bot+netdevbpf
2021-09-30 23:31 ` Andrew Lunn
2021-09-30 23:31   ` Andrew Lunn
2021-10-05 11:15   ` Wong Vee Khee
2021-10-05 11:15     ` Wong Vee Khee

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