net: stmmac: split hardware LPI timer control

Provide stmmac_disable_hw_lpi_timer() and stmmac_enable_hw_lpi_timer()
to control the hardware transmit LPI timer.

Reviewed-by: Andrew Lunn <[email protected]>
Tested-by: Choong Yong Liang <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: Russell King (Oracle)

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

@@ -390,14 +390,24 @@ static inline u32 stmmac_rx_dirty(struct stmmac_priv *priv, u32 queue)
 	return dirty;
 }
 
-static void stmmac_lpi_entry_timer_config(struct stmmac_priv *priv, bool en)
+static void stmmac_disable_hw_lpi_timer(struct stmmac_priv *priv)
+{
+	stmmac_set_eee_lpi_timer(priv, priv->hw, 0);
+}
+
+static void stmmac_enable_hw_lpi_timer(struct stmmac_priv *priv)
 {
-	u32 tx_lpi_timer;
+	stmmac_set_eee_lpi_timer(priv, priv->hw, priv->tx_lpi_timer);
+}
 
+static void stmmac_lpi_entry_timer_config(struct stmmac_priv *priv, bool en)
+{
 	/* Clear/set the SW EEE timer flag based on LPI ET enablement */
 	priv->eee_sw_timer_en = en ? 0 : 1;
-	tx_lpi_timer = en ? priv->tx_lpi_timer : 0;
-	stmmac_set_eee_lpi_timer(priv, priv->hw, tx_lpi_timer);
+	if (en)
+		stmmac_enable_hw_lpi_timer(priv);
+	else
+		stmmac_disable_hw_lpi_timer(priv);
 }
 
 /**