From: Andrew Lunn <andrew@lunn.ch>
Date: Fri, 27 Mar 2015 01:36:41 +0000 (-0700)
Subject: net: dsa: mv88e6171: Add defines for switch product IDs
X-Git-Tag: v5.15~15978^2~124^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=464caa2f5ba8d937ce3d434b1be4179fefb011e5;p=platform%2Fkernel%2Flinux-starfive.git

net: dsa: mv88e6171: Add defines for switch product IDs

Make the code more readable by using defines for the switch IDs.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 6ce6a3e..54ebfed 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -17,6 +17,10 @@
 #include <net/dsa.h>
 #include "mv88e6xxx.h"
 
+/* Switch product IDs */
+#define ID_6171	0x1710
+#define ID_6172	0x1720
+
 static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 {
 	struct mii_bus *bus = dsa_host_dev_to_mii_bus(host_dev);
@@ -27,9 +31,9 @@ static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 
 	ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
 	if (ret >= 0) {
-		if ((ret & 0xfff0) == 0x1710)
+		if ((ret & 0xfff0) == ID_6171)
 			return "Marvell 88E6171";
-		if ((ret & 0xfff0) == 0x1720)
+		if ((ret & 0xfff0) == ID_6172)
 			return "Marvell 88E6172";
 	}