Staging: xgifb: Rework conditions in XGI_EnableBridge().

Rework some conditions to reduce indentation and fix style warnings.
Signed-off-by: Miguel Gómez <magomez@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/xgifb/vb_setmode.c

@@ -6472,34 +6472,26 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
 		if (!(pVBInfo->VBInfo & DisableCRT2Display)) {
 			tempah = 0xc0;
 
-			if (!(pVBInfo->VBInfo & SetSimuScanMode)) {
-				if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
-					if (pVBInfo->VBInfo &
-					    SetCRT2ToDualEdge) {
+			if (!(pVBInfo->VBInfo & SetSimuScanMode) &&
+			    (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) &&
+			    (pVBInfo->VBInfo & SetCRT2ToDualEdge)) {
 				tempah = tempah & 0x40;
-						if (pVBInfo->VBInfo &
-						    XGI_SetCRT2ToLCDA)
+				if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA)
 					tempah = tempah ^ 0xC0;
 
-						if (pVBInfo->SetFlag &
-						    DisableChB)
+				if (pVBInfo->SetFlag & DisableChB)
 					tempah &= 0xBF;
 
-						if (pVBInfo->SetFlag &
-						    DisableChA)
+				if (pVBInfo->SetFlag &  DisableChA)
 					tempah &= 0x7F;
 
-						if (pVBInfo->SetFlag &
-						    EnableChB)
+				if (pVBInfo->SetFlag &  EnableChB)
 					tempah |= 0x40;
 
-						if (pVBInfo->SetFlag &
-						    EnableChA)
+				if (pVBInfo->SetFlag &  EnableChA)
 					tempah |= 0x80;
 			}
 		}
-			}
-		}
 
 		/* EnablePart4_1F */
 		xgifb_reg_or(pVBInfo->Part4Port, 0x1F, tempah);