net: stmmac: split stmmac_init_eee() and move to phylink methods

Move the appropriate parts of stmmac_init_eee() into the phylink
mac_enable_tx_lpi() and mac_disable_tx_lpi() methods.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

1 files changed, 63 insertions, 70 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 523644ee5ab7..dbda683f2f77 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -466,74 +466,6 @@ static void stmmac_eee_ctrl_timer(struct timer_list *t)
 	stmmac_try_to_start_sw_lpi(priv);
 }
 
-/**
- * stmmac_eee_init - init EEE
- * @priv: driver private structure
- * @active: indicates whether EEE should be enabled.
- * Description:
- *  if the GMAC supports the EEE (from the HW cap reg) and the phy device
- *  can also manage EEE, this function enable the LPI state and start related
- *  timer.
- */
-static void stmmac_eee_init(struct stmmac_priv *priv, bool active)
-{
-	priv->eee_active = active;
-
-	/* Check if MAC core supports the EEE feature. */
-	if (!priv->dma_cap.eee) {
-		priv->eee_enabled = false;
-		return;
-	}
-
-	mutex_lock(&priv->lock);
-
-	/* Check if it needs to be deactivated */
-	if (!priv->eee_active) {
-		if (priv->eee_enabled) {
-			netdev_dbg(priv->dev, "disable EEE\n");
-			priv->eee_sw_timer_en = false;
-			del_timer_sync(&priv->eee_ctrl_timer);
-			stmmac_reset_eee_mode(priv, priv->hw);
-			stmmac_set_eee_timer(priv, priv->hw, 0,
-					     STMMAC_DEFAULT_TWT_LS);
-			if (priv->hw->xpcs)
-				xpcs_config_eee(priv->hw->xpcs,
-						priv->plat->mult_fact_100ns,
-						false);
-		}
-		priv->eee_enabled = false;
-		mutex_unlock(&priv->lock);
-		return;
-	}
-
-	if (priv->eee_active && !priv->eee_enabled) {
-		stmmac_set_eee_timer(priv, priv->hw, STMMAC_DEFAULT_LIT_LS,
-				     STMMAC_DEFAULT_TWT_LS);
-		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) {
-		/* Use hardware LPI mode */
-		del_timer_sync(&priv->eee_ctrl_timer);
-		priv->tx_path_in_lpi_mode = false;
-		priv->eee_sw_timer_en = false;
-		stmmac_enable_hw_lpi_timer(priv);
-	} else {
-		/* Use software LPI mode */
-		priv->eee_sw_timer_en = true;
-		stmmac_disable_hw_lpi_timer(priv);
-		stmmac_restart_sw_lpi_timer(priv);
-	}
-
-	priv->eee_enabled = true;
-
-	mutex_unlock(&priv->lock);
-	netdev_dbg(priv->dev, "Energy-Efficient Ethernet initialized\n");
-}
-
 /* stmmac_get_tx_hwtstamp - get HW TX timestamps
  * @priv: driver private structure
  * @p : descriptor pointer
@@ -1110,7 +1042,33 @@ static void stmmac_mac_disable_tx_lpi(struct phylink_config *config)
 {
 	struct stmmac_priv *priv = netdev_priv(to_net_dev(config->dev));
 
-	stmmac_eee_init(priv, false);
+	priv->eee_active = false;
+
+	/* Check if MAC core supports the EEE feature. */
+	if (!priv->dma_cap.eee) {
+		priv->eee_enabled = false;
+		return;
+	}
+
+	mutex_lock(&priv->lock);
+
+	/* Check if it needs to be deactivated */
+	if (!priv->eee_active) {
+		if (priv->eee_enabled) {
+			netdev_dbg(priv->dev, "disable EEE\n");
+			priv->eee_sw_timer_en = false;
+			del_timer_sync(&priv->eee_ctrl_timer);
+			stmmac_reset_eee_mode(priv, priv->hw);
+			stmmac_set_eee_timer(priv, priv->hw, 0,
+					     STMMAC_DEFAULT_TWT_LS);
+			if (priv->hw->xpcs)
+				xpcs_config_eee(priv->hw->xpcs,
+						priv->plat->mult_fact_100ns,
+						false);
+		}
+		priv->eee_enabled = false;
+	}
+	mutex_unlock(&priv->lock);
 }
 
 static int stmmac_mac_enable_tx_lpi(struct phylink_config *config, u32 timer,
@@ -1119,7 +1077,42 @@ static int stmmac_mac_enable_tx_lpi(struct phylink_config *config, u32 timer,
 	struct stmmac_priv *priv = netdev_priv(to_net_dev(config->dev));
 
 	priv->tx_lpi_timer = timer;
-	stmmac_eee_init(priv, true);
+	priv->eee_active = true;
+
+	/* Check if MAC core supports the EEE feature. */
+	if (!priv->dma_cap.eee) {
+		priv->eee_enabled = false;
+		return 0;
+	}
+
+	mutex_lock(&priv->lock);
+
+	if (priv->eee_active && !priv->eee_enabled) {
+		stmmac_set_eee_timer(priv, priv->hw, STMMAC_DEFAULT_LIT_LS,
+				     STMMAC_DEFAULT_TWT_LS);
+		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) {
+		/* Use hardware LPI mode */
+		del_timer_sync(&priv->eee_ctrl_timer);
+		priv->tx_path_in_lpi_mode = false;
+		priv->eee_sw_timer_en = false;
+		stmmac_enable_hw_lpi_timer(priv);
+	} else {
+		/* Use software LPI mode */
+		priv->eee_sw_timer_en = true;
+		stmmac_disable_hw_lpi_timer(priv);
+		stmmac_restart_sw_lpi_timer(priv);
+	}
+
+	priv->eee_enabled = true;
+
+	mutex_unlock(&priv->lock);
+	netdev_dbg(priv->dev, "Energy-Efficient Ethernet initialized\n");
 
 	return 0;
 }