staging: xgifb: use "else if"

Use "else if" when possible to reduce nesting.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 0c859ae..7fc3049 100644 (file)
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -1397,11 +1397,10 @@ static int XGIfb_pan_display(struct fb_var_screeninfo *var,
                if (var->yoffset < 0 || var->yoffset >= info->var.yres_virtual
                                || var->xoffset)
                        return -EINVAL;
-       } else {
-               if (var->xoffset + info->var.xres > info->var.xres_virtual
+       } else if (var->xoffset + info->var.xres > info->var.xres_virtual
                                || var->yoffset + info->var.yres
-                                               > info->var.yres_virtual)
-                       return -EINVAL;
+                                               > info->var.yres_virtual) {
+               return -EINVAL;
        }
        err = XGIfb_pan_var(var, info);
        if (err < 0)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 6dd8650..504a9d9 100644 (file)
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -116,11 +116,9 @@ static void XGI_SetSeqRegs(unsigned short ModeNo,
        i = XGI_SetCRT2ToLCDA;
        if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
                tempah |= 0x01;
-       } else {
-               if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToLCD)) {
-                       if (pVBInfo->VBInfo & SetInSlaveMode)
-                               tempah |= 0x01;
-               }
+       } else if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToLCD)) {
+               if (pVBInfo->VBInfo & SetInSlaveMode)
+                       tempah |= 0x01;
        }
 
        tempah |= 0x20; /* screen off */
@@ -165,10 +163,9 @@ static void XGI_SetATTRegs(unsigned short ModeNo,
                if ((modeflag & Charx8Dot) && i == 0x13) { /* ifndef Dot9 */
                        if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
                                ARdata = 0;
-                       } else {
-                               if ((pVBInfo->VBInfo &
+                       } else if ((pVBInfo->VBInfo &
                                     (SetCRT2ToTV | SetCRT2ToLCD)) &&
-                                   (pVBInfo->VBInfo & SetInSlaveMode))
+                                   (pVBInfo->VBInfo & SetInSlaveMode)) {
                                        ARdata = 0;
                        }
                }
@@ -265,42 +262,38 @@ static unsigned char XGI_AjustCRT2Rate(unsigned short ModeNo,
                              (pVBInfo->SetFlag & TVSimuMode)) ||
                             (resinfo > 7)))
                                        return 0;
-               } else {
-                       if (pVBInfo->VBInfo & (SetCRT2ToAVIDEO |
+               } else if (pVBInfo->VBInfo & (SetCRT2ToAVIDEO |
                                               SetCRT2ToSVIDEO |
                                               SetCRT2ToSCART |
                                               SetCRT2ToYPbPr525750 |
                                               SetCRT2ToHiVision)) {
-                               tempax |= SupportTV;
-
-                               if (pVBInfo->VBType & (VB_SIS301B |
-                                                      VB_SIS302B |
-                                                      VB_SIS301LV |
-                                                      VB_SIS302LV |
-                                                      VB_XGI301C))
-                                       tempax |= SupportTV1024;
-
-                               if (!(pVBInfo->VBInfo & TVSetPAL) &&
-                                   (modeflag & NoSupportSimuTV) &&
-                                   (pVBInfo->VBInfo & SetInSlaveMode) &&
-                                   (!(pVBInfo->VBInfo & SetNotSimuMode)))
-                                       return 0;
-                       }
+                       tempax |= SupportTV;
+
+                       if (pVBInfo->VBType & (VB_SIS301B |
+                                              VB_SIS302B |
+                                              VB_SIS301LV |
+                                              VB_SIS302LV |
+                                              VB_XGI301C))
+                               tempax |= SupportTV1024;
+
+                       if (!(pVBInfo->VBInfo & TVSetPAL) &&
+                           (modeflag & NoSupportSimuTV) &&
+                           (pVBInfo->VBInfo & SetInSlaveMode) &&
+                           (!(pVBInfo->VBInfo & SetNotSimuMode)))
+                               return 0;
                }
-       } else { /* for LVDS */
-               if (pVBInfo->VBInfo & SetCRT2ToLCD) {
-                       tempax |= SupportLCD;
+       } else if (pVBInfo->VBInfo & SetCRT2ToLCD) { /* for LVDS */
+               tempax |= SupportLCD;
 
-                       if (resinfo > 0x08)
-                               return 0; /* 1024x768 */
+               if (resinfo > 0x08)
+                       return 0; /* 1024x768 */
 
-                       if (pVBInfo->LCDResInfo < Panel_1024x768) {
-                               if (resinfo > 0x07)
-                                       return 0; /* 800x600 */
+               if (pVBInfo->LCDResInfo < Panel_1024x768) {
+                       if (resinfo > 0x07)
+                               return 0; /* 800x600 */
 
-                               if (resinfo == 0x04)
-                                       return 0; /* 512x384 */
-                       }
+                       if (resinfo == 0x04)
+                               return 0; /* 512x384 */
                }
        }
 
@@ -976,13 +969,11 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeNo,
                                                                Ext_CRTVCLK;
                        VCLKIndex &= IndexMask;
                }
-       } else { /* LVDS */
-               if ((pVBInfo->LCDResInfo == Panel_800x600) ||
-                   (pVBInfo->LCDResInfo == Panel_320x480))
-                       VCLKIndex = VCLK40; /* LVDSXlat1VCLK */
-               else
-                       VCLKIndex = VCLK65_315 + 2; /* LVDSXlat2VCLK,
-                                                      LVDSXlat3VCLK  */
+       } else if ((pVBInfo->LCDResInfo == Panel_800x600) ||
+                  (pVBInfo->LCDResInfo == Panel_320x480)) { /* LVDS */
+               VCLKIndex = VCLK40; /* LVDSXlat1VCLK */
+       } else {
+               VCLKIndex = VCLK65_315 + 2; /* LVDSXlat2VCLK, LVDSXlat3VCLK */
        }
 
        return VCLKIndex;
@@ -2544,11 +2535,10 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
                                temp = 0x09FC;
                        else
                                temp = 0x097C;
+               } else if (pVBInfo->IF_DEF_HiVision == 1) {
+                       temp = 0x01FC;
                } else {
-                       if (pVBInfo->IF_DEF_HiVision == 1)
-                               temp = 0x01FC;
-                       else
-                               temp = 0x017C;
+                       temp = 0x017C;
                }
        } else { /* 3nd party chip */
                temp = SetCRT2ToLCD;
@@ -2720,19 +2710,17 @@ static void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
                        if (pVBInfo->VBInfo & SetCRT2ToHiVision) {
                                if (pVBInfo->VBInfo & SetInSlaveMode)
                                        tempbx &= (~RPLLDIV2XO);
-                       } else {
-                               if (tempbx &
-                                   (TVSetYPbPr525p | TVSetYPbPr750p))
+                       } else if (tempbx &
+                                   (TVSetYPbPr525p | TVSetYPbPr750p)) {
                                        tempbx &= (~RPLLDIV2XO);
-                               else if (!(pVBInfo->VBType &
+                       } else if (!(pVBInfo->VBType &
                                         (VB_SIS301B |
                                          VB_SIS302B |
                                          VB_SIS301LV |
                                          VB_SIS302LV |
                                          VB_XGI301C))) {
-                                       if (tempbx & TVSimuMode)
-                                               tempbx &= (~RPLLDIV2XO);
-                               }
+                               if (tempbx & TVSimuMode)
+                                       tempbx &= (~RPLLDIV2XO);
                        }
                }
        }
@@ -3865,18 +3853,16 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
                } else {
                        tempbx -= 10;
                }
-       } else {
-               if (pVBInfo->TVInfo & TVSimuMode) {
-                       if (pVBInfo->TVInfo & TVSetPAL) {
-                               if (pVBInfo->VBType & VB_SIS301LV) {
-                                       if (!(pVBInfo->TVInfo &
-                                           (TVSetYPbPr525p |
-                                            TVSetYPbPr750p |
-                                            TVSetHiVision)))
-                                               tempbx += 40;
-                               } else {
+       } else if (pVBInfo->TVInfo & TVSimuMode) {
+               if (pVBInfo->TVInfo & TVSetPAL) {
+                       if (pVBInfo->VBType & VB_SIS301LV) {
+                               if (!(pVBInfo->TVInfo &
+                                   (TVSetYPbPr525p |
+                                    TVSetYPbPr750p |
+                                    TVSetHiVision)))
                                        tempbx += 40;
-                               }
+                       } else {
+                               tempbx += 40;
                        }
                }
        }
@@ -4189,11 +4175,9 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
                                                temp += 1;
                                }
                        }
-               } else {
-                       if (pVBInfo->VBInfo & SetInSlaveMode) {
-                               if (ModeNo == 0x2f)
-                                       temp += 1;
-                       }
+               } else if (pVBInfo->VBInfo & SetInSlaveMode) {
+                       if (ModeNo == 0x2f)
+                               temp += 1;
                }
        }
 
@@ -4858,13 +4842,11 @@ static void XGI_SetGroup4(unsigned short ModeNo, unsigned short ModeIdIndex,
                if (pVBInfo->VBInfo & SetCRT2ToLCD) {
                        if (tempax > 800)
                                tempax -= 800;
-               } else {
-                       if (pVBInfo->VGAHDE > 800) {
-                               if (pVBInfo->VGAHDE == 1024)
-                                       tempax = (tempax * 25 / 32) - 1;
-                               else
-                                       tempax = (tempax * 20 / 32) - 1;
-                       }
+               } else if (pVBInfo->VGAHDE > 800) {
+                       if (pVBInfo->VGAHDE == 1024)
+                               tempax = (tempax * 25 / 32) - 1;
+                       else
+                               tempax = (tempax * 20 / 32) - 1;
                }
                tempax -= 1;
 
@@ -6218,12 +6200,10 @@ static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
                        if (pVBInfo->SetFlag & EnableChA) {
                                /* Power on */
                                xgifb_reg_set(pVBInfo->Part1Port, 0x1E, 0x20);
-                       } else {
-                               if (pVBInfo->VBInfo & SetCRT2ToDualEdge) {
-                                       /* Power on */
-                                       xgifb_reg_set(pVBInfo->Part1Port,
-                                                       0x1E, 0x20);
-                               }
+                       } else if (pVBInfo->VBInfo & SetCRT2ToDualEdge) {
+                               /* Power on */
+                               xgifb_reg_set(pVBInfo->Part1Port,
+                                               0x1E, 0x20);
                        }
                }
 
@@ -6481,16 +6461,14 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
                                XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
                                                HwDeviceExtension, pVBInfo);
                        }
-               } else {
-                       if (!(pVBInfo->VBInfo & SwitchCRT2)) {
-                               XGI_SetCRT1Group(xgifb_info,
-                                               HwDeviceExtension, ModeNo,
-                                               ModeIdIndex, pVBInfo);
-                               if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
-                                       XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
-                                                       HwDeviceExtension,
-                                                       pVBInfo);
-                               }
+               } else if (!(pVBInfo->VBInfo & SwitchCRT2)) {
+                       XGI_SetCRT1Group(xgifb_info,
+                                       HwDeviceExtension, ModeNo,
+                                       ModeIdIndex, pVBInfo);
+                       if (pVBInfo->VBInfo & XGI_SetCRT2ToLCDA) {
+                               XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
+                                               HwDeviceExtension,
+                                               pVBInfo);
                        }
                }