Blackfin: bf537-stamp: add AD5258 i2c address

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 2ba6f36..187e6fd 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1526,6 +1526,11 @@
 		I2C_BOARD_INFO("adau1761", 0x38),
 	},
 #endif
+#if defined(CONFIG_AD525X_DPOT) || defined(CONFIG_AD525X_DPOT_MODULE)
+	{
+		I2C_BOARD_INFO("ad5258", 0x18),
+	},
+#endif
 };
 
 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)