Index: sys/dev/drm2/i915/intel_iic.c
===================================================================
--- sys/dev/drm2/i915/intel_iic.c	(revision 249237)
+++ sys/dev/drm2/i915/intel_iic.c	(working copy)
@@ -256,7 +256,7 @@
 			I915_WRITE(GMBUS1 + reg_offset, GMBUS_CYCLE_WAIT |
 			    (i + 1 == nmsgs ? GMBUS_CYCLE_STOP : 0) |
 			    (len << GMBUS_BYTE_COUNT_SHIFT) |
-			    (msgs[i].slave << (GMBUS_SLAVE_ADDR_SHIFT - 1)) |
+			    (msgs[i].slave << GMBUS_SLAVE_ADDR_SHIFT) |
 			    GMBUS_SLAVE_READ | GMBUS_SW_RDY);
 			POSTING_READ(GMBUS2 + reg_offset);
 			do {
@@ -287,7 +287,7 @@
 			I915_WRITE(GMBUS1 + reg_offset, GMBUS_CYCLE_WAIT |
 			    (i + 1 == nmsgs ? GMBUS_CYCLE_STOP : 0) |
 			    (msgs[i].len << GMBUS_BYTE_COUNT_SHIFT) |
-			    (msgs[i].slave << (GMBUS_SLAVE_ADDR_SHIFT - 1)) |
+			    (msgs[i].slave << GMBUS_SLAVE_ADDR_SHIFT) |
 			    GMBUS_SLAVE_WRITE | GMBUS_SW_RDY);
 			POSTING_READ(GMBUS2+reg_offset);