linux-kernel - [PATCH 14/18] net: dsa: mv88e6171: Add defines for switch product IDs

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Date:	Sat, 21 Mar 2015 08:46:51 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	netdev@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>,
	Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	linux-kernel@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 14/18] net: dsa: mv88e6171: Add defines for switch product IDs

From: Andrew Lunn <andrew@...n.ch>

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

Signed-off-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/net/dsa/mv88e6171.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

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";
 	}
 
-- 
2.1.0

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