[PATCH] zd1211rw: Fix E2P_PHY_REG patching

Due to conflicting/confusing defines in the vendor driver, we were
reading E2P_PHY_REG from the wrong location.

CR157 patching was slightly incorrect in that the vendor driver only
patches in an 8-bit value, whereas we were patching 24 bits.

Additionally, CR157 patching was happening on both zd1211 and zd1211b,
but this should only happen on zd1211.

Signed-off-by: Daniel Drake <[e-mail]>
Signed-off-by: Ulrich Kunitz <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/zd1211rw/zd_chip.c

···
 	return r;
 }
 
-/* CR157 can be optionally patched by the EEPROM */
+/* CR157 can be optionally patched by the EEPROM for original ZD1211 */
 static int patch_cr157(struct zd_chip *chip)
 {
 	int r;
-	u32 value;
+	u16 value;
 
 	if (!chip->patch_cr157)
 		return 0;
 
-	r = zd_ioread32_locked(chip, &value, E2P_PHY_REG);
+	r = zd_ioread16_locked(chip, &value, E2P_PHY_REG);
 	if (r)
 		return r;
 
···
 		goto out;
 
 	r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
-	if (r)
-		goto unlock;
-
-	r = patch_cr157(chip);
-unlock:
 	t = zd_chip_unlock_phy_regs(chip);
 	if (t && !r)
 		r = t;

drivers/net/wireless/zd1211rw/zd_chip.h

···
  * also only 11 channels. */
 #define E2P_ALLOWED_CHANNEL	E2P_DATA(0x18)
 
-#define E2P_PHY_REG		E2P_DATA(0x1a)
 #define E2P_DEVICE_VER		E2P_DATA(0x20)
+#define E2P_PHY_REG		E2P_DATA(0x25)
 #define E2P_36M_CAL_VALUE1	E2P_DATA(0x28)
 #define E2P_36M_CAL_VALUE2      E2P_DATA(0x2a)
 #define E2P_36M_CAL_VALUE3      E2P_DATA(0x2c)