From: Jose Abreu <Jose.Abreu@synopsys.com>
Date: Fri, 15 Jun 2018 15:17:27 +0000 (+0100)
Subject: net: stmmac: Run HWIF Quirks after getting HW caps
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=7cfde0af731c14664e3882c7ba77ace1059f2c5e;p=openwrt%2Fstaging%2Fblogic.git

net: stmmac: Run HWIF Quirks after getting HW caps

Currently we were running HWIF quirks before getting HW capabilities.
This is not right because some HWIF callbacks depend on HW caps.

Lets save the quirks callback and use it in a later stage.

This fixes Altera socfpga.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: 5f0456b43140 ("net: stmmac: Implement logic to automatically select HW Interface")
Reported-by: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.c b/drivers/net/ethernet/stmicro/stmmac/hwif.c
index 14770fc8865e..1f50e83cafb2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.c
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.c
@@ -252,13 +252,8 @@ int stmmac_hwif_init(struct stmmac_priv *priv)
 				return ret;
 		}
 
-		/* Run quirks, if needed */
-		if (entry->quirks) {
-			ret = entry->quirks(priv);
-			if (ret)
-				return ret;
-		}
-
+		/* Save quirks, if needed for posterior use */
+		priv->hwif_quirks = entry->quirks;
 		return 0;
 	}
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index 025efbf6145c..76649adf8fb0 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -129,6 +129,7 @@ struct stmmac_priv {
 	struct net_device *dev;
 	struct device *device;
 	struct mac_device_info *hw;
+	int (*hwif_quirks)(struct stmmac_priv *priv);
 	struct mutex lock;
 
 	/* RX Queue */
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 5e6d4fe2f4ef..e79b0d7b388a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4135,6 +4135,13 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
 	if (priv->dma_cap.tsoen)
 		dev_info(priv->device, "TSO supported\n");
 
+	/* Run HW quirks, if any */
+	if (priv->hwif_quirks) {
+		ret = priv->hwif_quirks(priv);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }