staging: xgifb: probe: delete checks for mode "none"
authorAaro Koskinen <aaro.koskinen@iki.fi>
Fri, 19 Aug 2011 19:40:26 +0000 (22:40 +0300)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 23 Aug 2011 21:24:26 +0000 (14:24 -0700)
The driver does not allow selecting the mode "none", so no need to check
for that in probe.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/staging/xgifb/XGI_main_26.c

index 911e1a7..630f447 100644 (file)
@@ -2143,15 +2143,12 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
                goto error;
        }
 
-       if ((xgifb_mode_idx < 0) ||
-           ((XGIbios_mode[xgifb_mode_idx].mode_no) != 0xFF)) {
-               /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
-               xgifb_reg_or(XGISR,
-                            IND_XGI_PCI_ADDRESS_SET,
-                            (XGI_PCI_ADDR_ENABLE | XGI_MEM_MAP_IO_ENABLE));
-               /* Enable 2D accelerator engine */
-               xgifb_reg_or(XGISR, IND_XGI_MODULE_ENABLE, XGI_ENABLE_2D);
-       }
+       /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE  */
+       xgifb_reg_or(XGISR,
+                    IND_XGI_PCI_ADDRESS_SET,
+                    (XGI_PCI_ADDR_ENABLE | XGI_MEM_MAP_IO_ENABLE));
+       /* Enable 2D accelerator engine */
+       xgifb_reg_or(XGISR, IND_XGI_MODULE_ENABLE, XGI_ENABLE_2D);
 
        XGIhw_ext.ulVideoMemorySize = xgi_video_info.video_size;
 
@@ -2195,298 +2192,294 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 
        xgi_video_info.mtrr = (unsigned int) 0;
 
-       if ((xgifb_mode_idx < 0) ||
-           ((XGIbios_mode[xgifb_mode_idx].mode_no) != 0xFF)) {
+       xgi_video_info.hasVB = HASVB_NONE;
+       if ((xgi_video_info.chip == XG20) ||
+           (xgi_video_info.chip == XG27)) {
                xgi_video_info.hasVB = HASVB_NONE;
-               if ((xgi_video_info.chip == XG20) ||
-                   (xgi_video_info.chip == XG27)) {
-                       xgi_video_info.hasVB = HASVB_NONE;
-               } else if (xgi_video_info.chip == XG21) {
-                       CR38 = xgifb_reg_get(XGICR, 0x38);
-                       if ((CR38&0xE0) == 0xC0) {
-                               xgi_video_info.disp_state = DISPTYPE_LCD;
-                               if (!XGIfb_GetXG21LVDSData()) {
-                                       int m;
-                                       for (m = 0; m < sizeof(XGI21_LCDCapList)/sizeof(struct XGI21_LVDSCapStruct); m++) {
-                                               if ((XGI21_LCDCapList[m].LVDSHDE == XGIbios_mode[xgifb_mode_idx].xres) &&
-                                                   (XGI21_LCDCapList[m].LVDSVDE == XGIbios_mode[xgifb_mode_idx].yres)) {
-                                                       xgifb_reg_set(XGI_Pr.P3d4, 0x36, m);
-                                               }
+       } else if (xgi_video_info.chip == XG21) {
+               CR38 = xgifb_reg_get(XGICR, 0x38);
+               if ((CR38&0xE0) == 0xC0) {
+                       xgi_video_info.disp_state = DISPTYPE_LCD;
+                       if (!XGIfb_GetXG21LVDSData()) {
+                               int m;
+                               for (m = 0; m < sizeof(XGI21_LCDCapList)/sizeof(struct XGI21_LVDSCapStruct); m++) {
+                                       if ((XGI21_LCDCapList[m].LVDSHDE == XGIbios_mode[xgifb_mode_idx].xres) &&
+                                           (XGI21_LCDCapList[m].LVDSVDE == XGIbios_mode[xgifb_mode_idx].yres)) {
+                                               xgifb_reg_set(XGI_Pr.P3d4, 0x36, m);
                                        }
                                }
-                       } else if ((CR38&0xE0) == 0x60) {
-                               xgi_video_info.hasVB = HASVB_CHRONTEL;
-                       } else {
-                               xgi_video_info.hasVB = HASVB_NONE;
                        }
+               } else if ((CR38&0xE0) == 0x60) {
+                       xgi_video_info.hasVB = HASVB_CHRONTEL;
                } else {
-                       XGIfb_get_VB_type();
+                       xgi_video_info.hasVB = HASVB_NONE;
                }
+       } else {
+               XGIfb_get_VB_type();
+       }
 
-               XGIhw_ext.ujVBChipID = VB_CHIP_UNKNOWN;
-
-               XGIhw_ext.ulExternalChip = 0;
+       XGIhw_ext.ujVBChipID = VB_CHIP_UNKNOWN;
 
-               switch (xgi_video_info.hasVB) {
-               case HASVB_301:
-                       reg = xgifb_reg_get(XGIPART4, 0x01);
-                       if (reg >= 0xE0) {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
-                               printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
-                       } else if (reg >= 0xD0) {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
-                               printk(KERN_INFO "XGIfb: XGI301LV bridge detected (revision 0x%02x)\n", reg);
-                       }
-                       /* else if (reg >= 0xB0) {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_301B;
-                               reg1 = xgifb_reg_get(XGIPART4, 0x23);
-                               printk("XGIfb: XGI301B bridge detected\n");
-                       } */
-                       else {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_301;
-                               printk("XGIfb: XGI301 bridge detected\n");
-                       }
-                       break;
-               case HASVB_302:
-                       reg = xgifb_reg_get(XGIPART4, 0x01);
-                       if (reg >= 0xE0) {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
-                               printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
-                       } else if (reg >= 0xD0) {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
-                               printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
-                       } else if (reg >= 0xB0) {
-                               reg1 = xgifb_reg_get(XGIPART4, 0x23);
-
-                               XGIhw_ext.ujVBChipID = VB_CHIP_302B;
+       XGIhw_ext.ulExternalChip = 0;
 
-                       } else {
-                               XGIhw_ext.ujVBChipID = VB_CHIP_302;
-                               printk(KERN_INFO "XGIfb: XGI302 bridge detected\n");
-                       }
-                       break;
-               case HASVB_LVDS:
-                       XGIhw_ext.ulExternalChip = 0x1;
-                       printk(KERN_INFO "XGIfb: LVDS transmitter detected\n");
-                       break;
-               case HASVB_TRUMPION:
-                       XGIhw_ext.ulExternalChip = 0x2;
-                       printk(KERN_INFO "XGIfb: Trumpion Zurac LVDS scaler detected\n");
-                       break;
-               case HASVB_CHRONTEL:
-                       XGIhw_ext.ulExternalChip = 0x4;
-                       printk(KERN_INFO "XGIfb: Chrontel TV encoder detected\n");
-                       break;
-               case HASVB_LVDS_CHRONTEL:
-                       XGIhw_ext.ulExternalChip = 0x5;
-                       printk(KERN_INFO "XGIfb: LVDS transmitter and Chrontel TV encoder detected\n");
-                       break;
-               default:
-                       printk(KERN_INFO "XGIfb: No or unknown bridge type detected\n");
-                       break;
+       switch (xgi_video_info.hasVB) {
+       case HASVB_301:
+               reg = xgifb_reg_get(XGIPART4, 0x01);
+               if (reg >= 0xE0) {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
+                       printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
+               } else if (reg >= 0xD0) {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
+                       printk(KERN_INFO "XGIfb: XGI301LV bridge detected (revision 0x%02x)\n", reg);
                }
+               /* else if (reg >= 0xB0) {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_301B;
+                       reg1 = xgifb_reg_get(XGIPART4, 0x23);
+                       printk("XGIfb: XGI301B bridge detected\n");
+               } */
+               else {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_301;
+                       printk("XGIfb: XGI301 bridge detected\n");
+               }
+               break;
+       case HASVB_302:
+               reg = xgifb_reg_get(XGIPART4, 0x01);
+               if (reg >= 0xE0) {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_302LV;
+                       printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
+               } else if (reg >= 0xD0) {
+                       XGIhw_ext.ujVBChipID = VB_CHIP_301LV;
+                       printk(KERN_INFO "XGIfb: XGI302LV bridge detected (revision 0x%02x)\n", reg);
+               } else if (reg >= 0xB0) {
+                       reg1 = xgifb_reg_get(XGIPART4, 0x23);
 
-               if (xgi_video_info.hasVB != HASVB_NONE)
-                       XGIfb_detect_VB();
+                       XGIhw_ext.ujVBChipID = VB_CHIP_302B;
 
-               if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
-                       if (XGIfb_crt1off)
-                               xgi_video_info.disp_state |= DISPMODE_SINGLE;
-                       else
-                               xgi_video_info.disp_state |= (DISPMODE_MIRROR |
-                                                             DISPTYPE_CRT1);
                } else {
-                       xgi_video_info.disp_state = DISPMODE_SINGLE |
-                                                   DISPTYPE_CRT1;
+                       XGIhw_ext.ujVBChipID = VB_CHIP_302;
+                       printk(KERN_INFO "XGIfb: XGI302 bridge detected\n");
                }
+               break;
+       case HASVB_LVDS:
+               XGIhw_ext.ulExternalChip = 0x1;
+               printk(KERN_INFO "XGIfb: LVDS transmitter detected\n");
+               break;
+       case HASVB_TRUMPION:
+               XGIhw_ext.ulExternalChip = 0x2;
+               printk(KERN_INFO "XGIfb: Trumpion Zurac LVDS scaler detected\n");
+               break;
+       case HASVB_CHRONTEL:
+               XGIhw_ext.ulExternalChip = 0x4;
+               printk(KERN_INFO "XGIfb: Chrontel TV encoder detected\n");
+               break;
+       case HASVB_LVDS_CHRONTEL:
+               XGIhw_ext.ulExternalChip = 0x5;
+               printk(KERN_INFO "XGIfb: LVDS transmitter and Chrontel TV encoder detected\n");
+               break;
+       default:
+               printk(KERN_INFO "XGIfb: No or unknown bridge type detected\n");
+               break;
+       }
 
-               if (xgi_video_info.disp_state & DISPTYPE_LCD) {
-                       if (!enable_dstn) {
-                               reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
-                               reg &= 0x0f;
-                               XGIhw_ext.ulCRT2LCDType = XGI310paneltype[reg];
+       if (xgi_video_info.hasVB != HASVB_NONE)
+               XGIfb_detect_VB();
 
-                       } else {
-                               /* TW: FSTN/DSTN */
-                               XGIhw_ext.ulCRT2LCDType = LCD_320x480;
-                       }
+       if (xgi_video_info.disp_state & DISPTYPE_DISP2) {
+               if (XGIfb_crt1off)
+                       xgi_video_info.disp_state |= DISPMODE_SINGLE;
+               else
+                       xgi_video_info.disp_state |= (DISPMODE_MIRROR |
+                                                     DISPTYPE_CRT1);
+       } else {
+               xgi_video_info.disp_state = DISPMODE_SINGLE |
+                                           DISPTYPE_CRT1;
+       }
+
+       if (xgi_video_info.disp_state & DISPTYPE_LCD) {
+               if (!enable_dstn) {
+                       reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL);
+                       reg &= 0x0f;
+                       XGIhw_ext.ulCRT2LCDType = XGI310paneltype[reg];
+
+               } else {
+                       /* TW: FSTN/DSTN */
+                       XGIhw_ext.ulCRT2LCDType = LCD_320x480;
                }
+       }
 
-               XGIfb_detectedpdc = 0;
+       XGIfb_detectedpdc = 0;
 
-               XGIfb_detectedlcda = 0xff;
+       XGIfb_detectedlcda = 0xff;
 
-               /* TW: Try to find about LCDA */
+       /* TW: Try to find about LCDA */
 
-               if ((XGIhw_ext.ujVBChipID == VB_CHIP_302B) ||
-                               (XGIhw_ext.ujVBChipID == VB_CHIP_301LV) ||
-                               (XGIhw_ext.ujVBChipID == VB_CHIP_302LV)) {
-                       int tmp;
-                       tmp = xgifb_reg_get(XGICR, 0x34);
-                       if (tmp <= 0x13) {
+       if ((XGIhw_ext.ujVBChipID == VB_CHIP_302B) ||
+                       (XGIhw_ext.ujVBChipID == VB_CHIP_301LV) ||
+                       (XGIhw_ext.ujVBChipID == VB_CHIP_302LV)) {
+               int tmp;
+               tmp = xgifb_reg_get(XGICR, 0x34);
+               if (tmp <= 0x13) {
+                       /* Currently on LCDA?
+                        *(Some BIOSes leave CR38) */
+                       tmp = xgifb_reg_get(XGICR, 0x38);
+                       if ((tmp & 0x03) == 0x03) {
+                               /* XGI_Pr.XGI_UseLCDA = 1; */
+                       } else {
                                /* Currently on LCDA?
-                                *(Some BIOSes leave CR38) */
-                               tmp = xgifb_reg_get(XGICR, 0x38);
-                               if ((tmp & 0x03) == 0x03) {
+                                *(Some newer BIOSes set D0 in CR35) */
+                               tmp = xgifb_reg_get(XGICR, 0x35);
+                               if (tmp & 0x01) {
                                        /* XGI_Pr.XGI_UseLCDA = 1; */
                                } else {
-                                       /* Currently on LCDA?
-                                        *(Some newer BIOSes set D0 in CR35) */
-                                       tmp = xgifb_reg_get(XGICR, 0x35);
-                                       if (tmp & 0x01) {
-                                               /* XGI_Pr.XGI_UseLCDA = 1; */
-                                       } else {
-                                               tmp = xgifb_reg_get(XGICR,
-                                                                   0x30);
-                                               if (tmp & 0x20) {
-                                                       tmp = xgifb_reg_get(
-                                                               XGIPART1, 0x13);
-                                                       if (tmp & 0x04) {
-                                                               /* XGI_Pr.XGI_UseLCDA = 1; */
-                                                       }
+                                       tmp = xgifb_reg_get(XGICR,
+                                                           0x30);
+                                       if (tmp & 0x20) {
+                                               tmp = xgifb_reg_get(
+                                                       XGIPART1, 0x13);
+                                               if (tmp & 0x04) {
+                                                       /* XGI_Pr.XGI_UseLCDA = 1; */
                                                }
                                        }
                                }
                        }
-
                }
 
-               if (xgifb_mode_idx >= 0)
-                       xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
-
-               if (xgifb_mode_idx < 0) {
-                       switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
-                       case DISPTYPE_LCD:
-                               xgifb_mode_idx = DEFAULT_LCDMODE;
-                               if (xgi_video_info.chip == XG21)
-                                       xgifb_mode_idx =
-                                           XGIfb_GetXG21DefaultLVDSModeIdx();
-                               break;
-                       case DISPTYPE_TV:
-                               xgifb_mode_idx = DEFAULT_TVMODE;
-                               break;
-                       default:
-                               xgifb_mode_idx = DEFAULT_MODE;
-                               break;
-                       }
-               }
-
-               XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
+       }
 
-               /* yilin set default refresh rate */
-               if (xgi_video_info.refresh_rate == 0)
-                       xgi_video_info.refresh_rate = 60;
-               if (XGIfb_search_refresh_rate(
-                               xgi_video_info.refresh_rate) == 0) {
-                       XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
-                       xgi_video_info.refresh_rate = 60;
-               }
+       if (xgifb_mode_idx >= 0)
+               xgifb_mode_idx = XGIfb_validate_mode(xgifb_mode_idx);
 
-               xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
-               xgi_video_info.video_vwidth =
-                       xgi_video_info.video_width =
-                               XGIbios_mode[xgifb_mode_idx].xres;
-               xgi_video_info.video_vheight =
-                       xgi_video_info.video_height =
-                               XGIbios_mode[xgifb_mode_idx].yres;
-               xgi_video_info.org_x = xgi_video_info.org_y = 0;
-               xgi_video_info.video_linelength =
-                       xgi_video_info.video_width *
-                       (xgi_video_info.video_bpp >> 3);
-               switch (xgi_video_info.video_bpp) {
-               case 8:
-                       xgi_video_info.DstColor = 0x0000;
-                       xgi_video_info.XGI310_AccelDepth = 0x00000000;
-                       xgi_video_info.video_cmap_len = 256;
-                       break;
-               case 16:
-                       xgi_video_info.DstColor = 0x8000;
-                       xgi_video_info.XGI310_AccelDepth = 0x00010000;
-                       xgi_video_info.video_cmap_len = 16;
+       if (xgifb_mode_idx < 0) {
+               switch (xgi_video_info.disp_state & DISPTYPE_DISP2) {
+               case DISPTYPE_LCD:
+                       xgifb_mode_idx = DEFAULT_LCDMODE;
+                       if (xgi_video_info.chip == XG21)
+                               xgifb_mode_idx =
+                                   XGIfb_GetXG21DefaultLVDSModeIdx();
                        break;
-               case 32:
-                       xgi_video_info.DstColor = 0xC000;
-                       xgi_video_info.XGI310_AccelDepth = 0x00020000;
-                       xgi_video_info.video_cmap_len = 16;
+               case DISPTYPE_TV:
+                       xgifb_mode_idx = DEFAULT_TVMODE;
                        break;
                default:
-                       xgi_video_info.video_cmap_len = 16;
-                       printk(KERN_INFO "XGIfb: Unsupported depth %d",
-                              xgi_video_info.video_bpp);
+                       xgifb_mode_idx = DEFAULT_MODE;
                        break;
                }
+       }
 
-               printk(KERN_INFO "XGIfb: Default mode is %dx%dx%d (%dHz)\n",
-                      xgi_video_info.video_width,
-                      xgi_video_info.video_height,
-                      xgi_video_info.video_bpp,
-                      xgi_video_info.refresh_rate);
-
-               default_var.xres =
-                       default_var.xres_virtual =
-                               xgi_video_info.video_width;
-               default_var.yres =
-                       default_var.yres_virtual =
-                               xgi_video_info.video_height;
-               default_var.bits_per_pixel = xgi_video_info.video_bpp;
-
-               XGIfb_bpp_to_var(&default_var);
-
-               default_var.pixclock = (u32) (1000000000 /
-                               XGIfb_mode_rate_to_dclock(&XGI_Pr, &XGIhw_ext,
-                                               XGIfb_mode_no, XGIfb_rate_idx));
-
-               if (XGIfb_mode_rate_to_ddata(&XGI_Pr, &XGIhw_ext,
-                       XGIfb_mode_no, XGIfb_rate_idx,
-                       &default_var.left_margin, &default_var.right_margin,
-                       &default_var.upper_margin, &default_var.lower_margin,
-                       &default_var.hsync_len, &default_var.vsync_len,
-                       &default_var.sync, &default_var.vmode)) {
-
-                       if ((default_var.vmode & FB_VMODE_MASK) ==
-                           FB_VMODE_INTERLACED) {
-                               default_var.yres <<= 1;
-                               default_var.yres_virtual <<= 1;
-                       } else if ((default_var.vmode & FB_VMODE_MASK) ==
-                                  FB_VMODE_DOUBLE) {
-                               default_var.pixclock >>= 1;
-                               default_var.yres >>= 1;
-                               default_var.yres_virtual >>= 1;
-                       }
+       XGIfb_mode_no = XGIbios_mode[xgifb_mode_idx].mode_no;
 
+       /* yilin set default refresh rate */
+       if (xgi_video_info.refresh_rate == 0)
+               xgi_video_info.refresh_rate = 60;
+       if (XGIfb_search_refresh_rate(
+                       xgi_video_info.refresh_rate) == 0) {
+               XGIfb_rate_idx = XGIbios_mode[xgifb_mode_idx].rate_idx;
+               xgi_video_info.refresh_rate = 60;
+       }
+
+       xgi_video_info.video_bpp = XGIbios_mode[xgifb_mode_idx].bpp;
+       xgi_video_info.video_vwidth =
+               xgi_video_info.video_width =
+                       XGIbios_mode[xgifb_mode_idx].xres;
+       xgi_video_info.video_vheight =
+               xgi_video_info.video_height =
+                       XGIbios_mode[xgifb_mode_idx].yres;
+       xgi_video_info.org_x = xgi_video_info.org_y = 0;
+       xgi_video_info.video_linelength =
+               xgi_video_info.video_width *
+               (xgi_video_info.video_bpp >> 3);
+       switch (xgi_video_info.video_bpp) {
+       case 8:
+               xgi_video_info.DstColor = 0x0000;
+               xgi_video_info.XGI310_AccelDepth = 0x00000000;
+               xgi_video_info.video_cmap_len = 256;
+               break;
+       case 16:
+               xgi_video_info.DstColor = 0x8000;
+               xgi_video_info.XGI310_AccelDepth = 0x00010000;
+               xgi_video_info.video_cmap_len = 16;
+               break;
+       case 32:
+               xgi_video_info.DstColor = 0xC000;
+               xgi_video_info.XGI310_AccelDepth = 0x00020000;
+               xgi_video_info.video_cmap_len = 16;
+               break;
+       default:
+               xgi_video_info.video_cmap_len = 16;
+               printk(KERN_INFO "XGIfb: Unsupported depth %d",
+                      xgi_video_info.video_bpp);
+               break;
+       }
+
+       printk(KERN_INFO "XGIfb: Default mode is %dx%dx%d (%dHz)\n",
+              xgi_video_info.video_width,
+              xgi_video_info.video_height,
+              xgi_video_info.video_bpp,
+              xgi_video_info.refresh_rate);
+
+       default_var.xres =
+               default_var.xres_virtual =
+                       xgi_video_info.video_width;
+       default_var.yres =
+               default_var.yres_virtual =
+                       xgi_video_info.video_height;
+       default_var.bits_per_pixel = xgi_video_info.video_bpp;
+
+       XGIfb_bpp_to_var(&default_var);
+
+       default_var.pixclock = (u32) (1000000000 /
+                       XGIfb_mode_rate_to_dclock(&XGI_Pr, &XGIhw_ext,
+                                       XGIfb_mode_no, XGIfb_rate_idx));
+
+       if (XGIfb_mode_rate_to_ddata(&XGI_Pr, &XGIhw_ext,
+               XGIfb_mode_no, XGIfb_rate_idx,
+               &default_var.left_margin, &default_var.right_margin,
+               &default_var.upper_margin, &default_var.lower_margin,
+               &default_var.hsync_len, &default_var.vsync_len,
+               &default_var.sync, &default_var.vmode)) {
+
+               if ((default_var.vmode & FB_VMODE_MASK) ==
+                   FB_VMODE_INTERLACED) {
+                       default_var.yres <<= 1;
+                       default_var.yres_virtual <<= 1;
+               } else if ((default_var.vmode & FB_VMODE_MASK) ==
+                          FB_VMODE_DOUBLE) {
+                       default_var.pixclock >>= 1;
+                       default_var.yres >>= 1;
+                       default_var.yres_virtual >>= 1;
                }
 
-               fb_info->flags = FBINFO_FLAG_DEFAULT;
-               fb_info->var = default_var;
-               fb_info->fix = XGIfb_fix;
-               fb_info->par = &xgi_video_info;
-               fb_info->screen_base = xgi_video_info.video_vbase;
-               fb_info->fbops = &XGIfb_ops;
-               XGIfb_get_fix(&fb_info->fix, -1, fb_info);
-               fb_info->pseudo_palette = pseudo_palette;
+       }
+
+       fb_info->flags = FBINFO_FLAG_DEFAULT;
+       fb_info->var = default_var;
+       fb_info->fix = XGIfb_fix;
+       fb_info->par = &xgi_video_info;
+       fb_info->screen_base = xgi_video_info.video_vbase;
+       fb_info->fbops = &XGIfb_ops;
+       XGIfb_get_fix(&fb_info->fix, -1, fb_info);
+       fb_info->pseudo_palette = pseudo_palette;
 
-               fb_alloc_cmap(&fb_info->cmap, 256 , 0);
+       fb_alloc_cmap(&fb_info->cmap, 256 , 0);
 
 #ifdef CONFIG_MTRR
-               xgi_video_info.mtrr = mtrr_add(
-                       (unsigned int) xgi_video_info.video_base,
-                       (unsigned int) xgi_video_info.video_size,
-                       MTRR_TYPE_WRCOMB, 1);
-               if (xgi_video_info.mtrr)
-                       printk(KERN_INFO "XGIfb: Added MTRRs\n");
+       xgi_video_info.mtrr = mtrr_add(
+               (unsigned int) xgi_video_info.video_base,
+               (unsigned int) xgi_video_info.video_size,
+               MTRR_TYPE_WRCOMB, 1);
+       if (xgi_video_info.mtrr)
+               printk(KERN_INFO "XGIfb: Added MTRRs\n");
 #endif
 
-               if (register_framebuffer(fb_info) < 0) {
-                       ret = -EINVAL;
-                       goto error_1;
-               }
-
-               XGIfb_registered = 1;
+       if (register_framebuffer(fb_info) < 0) {
+               ret = -EINVAL;
+               goto error_1;
+       }
 
-               printk(KERN_INFO "fb%d: %s frame buffer device, Version %d.%d.%02d\n",
-                      fb_info->node, myid, VER_MAJOR, VER_MINOR, VER_LEVEL);
+       XGIfb_registered = 1;
 
-       }
+       printk(KERN_INFO "fb%d: %s frame buffer device, Version %d.%d.%02d\n",
+              fb_info->node, myid, VER_MAJOR, VER_MINOR, VER_LEVEL);
 
        dumpVGAReg();