diff --git a/src/rhd_lvtma.c b/src/rhd_lvtma.c
index df53cfb..a39f6f0 100644
--- a/src/rhd_lvtma.c
+++ b/src/rhd_lvtma.c
@@ -207,14 +207,9 @@ LVDSSetBacklight(struct rhdOutput *Output, int level)
 	       "%s: trying to set BL_MOD_LEVEL to: %d\n",
 	       __func__, level);
 
-    if (rhdPtr->ChipSet >= RHD_RS600)
-	RHDRegMask(rhdPtr, LVTMA_BL_MOD_CNTL,
-		   0xFF << 16 | (level << 8) | 0x1,
-		   0xFFFF01);
-    else
-	RHDRegMask(rhdPtr, LVTMA_BL_MOD_CNTL,
-		   (level << 8) | 0x1,
-		   0xFF01);
+    RHDRegMask(rhdPtr, LVTMA_BL_MOD_CNTL,
+	       0xFF << 16 | (level << 8) | 0x1,
+	       0xFFFF01);
 
     /*
      * Poor man's debug