netdev - [PATCH (net.git) 3/4 (v2)] stmmac: never check EEE in case of a switch is attached

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Date:	Thu, 28 Aug 2014 08:11:43 +0200
From:	Giuseppe Cavallaro <peppe.cavallaro@...com>
To:	<netdev@...r.kernel.org>
Cc:	<davem@...emloft.net>, Giuseppe CAVALLARO <peppe.cavallaro@...com>
Subject: [PATCH (net.git) 3/4 (v2)] stmmac: never check EEE in case of a switch is attached

From: Giuseppe CAVALLARO <peppe.cavallaro@...com>

This patch is to skip the EEE initialisation when the stmmac
is using a switch (with a fixed phy support).

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@...com>
---

v2: review local variable declarations

 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 51a89d4..b8d931e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -275,6 +275,7 @@ static void stmmac_eee_ctrl_timer(unsigned long arg)
  */
 bool stmmac_eee_init(struct stmmac_priv *priv)
 {
+	char *phy_bus_name = priv->plat->phy_bus_name;
 	bool ret = false;
 
 	/* Using PCS we cannot dial with the phy registers at this stage
@@ -284,6 +285,10 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
 	    (priv->pcs == STMMAC_PCS_RTBI))
 		goto out;
 
+	/* Never init EEE in case of a switch is attached */
+	if (phy_bus_name && (!strcmp(phy_bus_name, "fixed")))
+		goto out;
+
 	/* MAC core supports the EEE feature. */
 	if (priv->dma_cap.eee) {
 		int tx_lpi_timer = priv->tx_lpi_timer;
-- 
1.7.4.4

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