rt2x00: Unify GPIO register field namings

The various rt2x00 drivers use different methods to name the different
GPIO register fields indicating the GPIO pin value and the fields
indicating the direction.
Start using a unified naming scheme for the GPIO register fields:
	- <csr>_VAL<x> for fields indicating the GPIO pin value.
	- <csr>_DIR<x> for fields indicating the GPIO pin direction.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo Van Doorn <ivdoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h
index df1cc11..7577e0b 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.h
+++ b/drivers/net/wireless/rt2x00/rt73usb.h
@@ -267,24 +267,26 @@
 
 /*
  * MAC_CSR13: GPIO.
+ *	MAC_CSR13_VALx: GPIO value
+ *	MAC_CSR13_DIRx: GPIO direction: 0 = input; 1 = output
  */
 #define MAC_CSR13			0x3034
-#define MAC_CSR13_BIT0			FIELD32(0x00000001)
-#define MAC_CSR13_BIT1			FIELD32(0x00000002)
-#define MAC_CSR13_BIT2			FIELD32(0x00000004)
-#define MAC_CSR13_BIT3			FIELD32(0x00000008)
-#define MAC_CSR13_BIT4			FIELD32(0x00000010)
-#define MAC_CSR13_BIT5			FIELD32(0x00000020)
-#define MAC_CSR13_BIT6			FIELD32(0x00000040)
-#define MAC_CSR13_BIT7			FIELD32(0x00000080)
-#define MAC_CSR13_BIT8			FIELD32(0x00000100)
-#define MAC_CSR13_BIT9			FIELD32(0x00000200)
-#define MAC_CSR13_BIT10			FIELD32(0x00000400)
-#define MAC_CSR13_BIT11			FIELD32(0x00000800)
-#define MAC_CSR13_BIT12			FIELD32(0x00001000)
-#define MAC_CSR13_BIT13			FIELD32(0x00002000)
-#define MAC_CSR13_BIT14			FIELD32(0x00004000)
-#define MAC_CSR13_BIT15			FIELD32(0x00008000)
+#define MAC_CSR13_VAL0			FIELD32(0x00000001)
+#define MAC_CSR13_VAL1			FIELD32(0x00000002)
+#define MAC_CSR13_VAL2			FIELD32(0x00000004)
+#define MAC_CSR13_VAL3			FIELD32(0x00000008)
+#define MAC_CSR13_VAL4			FIELD32(0x00000010)
+#define MAC_CSR13_VAL5			FIELD32(0x00000020)
+#define MAC_CSR13_VAL6			FIELD32(0x00000040)
+#define MAC_CSR13_VAL7			FIELD32(0x00000080)
+#define MAC_CSR13_DIR0			FIELD32(0x00000100)
+#define MAC_CSR13_DIR1			FIELD32(0x00000200)
+#define MAC_CSR13_DIR2			FIELD32(0x00000400)
+#define MAC_CSR13_DIR3			FIELD32(0x00000800)
+#define MAC_CSR13_DIR4			FIELD32(0x00001000)
+#define MAC_CSR13_DIR5			FIELD32(0x00002000)
+#define MAC_CSR13_DIR6			FIELD32(0x00004000)
+#define MAC_CSR13_DIR7			FIELD32(0x00008000)
 
 /*
  * MAC_CSR14: LED control register.