GNU Linux-libre 5.19-rc6-gnu
[releases.git] / drivers / video / fbdev / nvidia / nv_setup.c
1  /***************************************************************************\
2 |*                                                                           *|
3 |*       Copyright 2003 NVIDIA, Corporation.  All rights reserved.           *|
4 |*                                                                           *|
5 |*     NOTICE TO USER:   The source code  is copyrighted under  U.S. and     *|
6 |*     international laws.  Users and possessors of this source code are     *|
7 |*     hereby granted a nonexclusive,  royalty-free copyright license to     *|
8 |*     use this code in individual and commercial software.                  *|
9 |*                                                                           *|
10 |*     Any use of this source code must include,  in the user documenta-     *|
11 |*     tion and  internal comments to the code,  notices to the end user     *|
12 |*     as follows:                                                           *|
13 |*                                                                           *|
14 |*       Copyright 2003 NVIDIA, Corporation.  All rights reserved.           *|
15 |*                                                                           *|
16 |*     NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY     *|
17 |*     OF  THIS SOURCE  CODE  FOR ANY PURPOSE.  IT IS  PROVIDED  "AS IS"     *|
18 |*     WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY KIND.  NVIDIA, CORPOR-     *|
19 |*     ATION DISCLAIMS ALL WARRANTIES  WITH REGARD  TO THIS SOURCE CODE,     *|
20 |*     INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGE-     *|
21 |*     MENT,  AND FITNESS  FOR A PARTICULAR PURPOSE.   IN NO EVENT SHALL     *|
22 |*     NVIDIA, CORPORATION  BE LIABLE FOR ANY SPECIAL,  INDIRECT,  INCI-     *|
23 |*     DENTAL, OR CONSEQUENTIAL DAMAGES,  OR ANY DAMAGES  WHATSOEVER RE-     *|
24 |*     SULTING FROM LOSS OF USE,  DATA OR PROFITS,  WHETHER IN AN ACTION     *|
25 |*     OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,  ARISING OUT OF     *|
26 |*     OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE.     *|
27 |*                                                                           *|
28 |*     U.S. Government  End  Users.   This source code  is a "commercial     *|
29 |*     item,"  as that  term is  defined at  48 C.F.R. 2.101 (OCT 1995),     *|
30 |*     consisting  of "commercial  computer  software"  and  "commercial     *|
31 |*     computer  software  documentation,"  as such  terms  are  used in     *|
32 |*     48 C.F.R. 12.212 (SEPT 1995)  and is provided to the U.S. Govern-     *|
33 |*     ment only as  a commercial end item.   Consistent with  48 C.F.R.     *|
34 |*     12.212 and  48 C.F.R. 227.7202-1 through  227.7202-4 (JUNE 1995),     *|
35 |*     all U.S. Government End Users  acquire the source code  with only     *|
36 |*     those rights set forth herein.                                        *|
37 |*                                                                           *|
38  \***************************************************************************/
39
40 /*
41  * GPL Licensing Note - According to Mark Vojkovich, author of the Xorg/
42  * XFree86 'nv' driver, this source code is provided under MIT-style licensing
43  * where the source code is provided "as is" without warranty of any kind.
44  * The only usage restriction is for the copyright notices to be retained
45  * whenever code is used.
46  *
47  * Antonino Daplas <adaplas@pol.net> 2005-03-11
48  */
49
50 #include <video/vga.h>
51 #include <linux/delay.h>
52 #include <linux/pci.h>
53 #include <linux/slab.h>
54 #include "nv_type.h"
55 #include "nv_local.h"
56 #include "nv_proto.h"
57 /*
58  * Override VGA I/O routines.
59  */
60 void NVWriteCrtc(struct nvidia_par *par, u8 index, u8 value)
61 {
62         VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
63         VGA_WR08(par->PCIO, par->IOBase + 0x05, value);
64 }
65 u8 NVReadCrtc(struct nvidia_par *par, u8 index)
66 {
67         VGA_WR08(par->PCIO, par->IOBase + 0x04, index);
68         return (VGA_RD08(par->PCIO, par->IOBase + 0x05));
69 }
70 void NVWriteGr(struct nvidia_par *par, u8 index, u8 value)
71 {
72         VGA_WR08(par->PVIO, VGA_GFX_I, index);
73         VGA_WR08(par->PVIO, VGA_GFX_D, value);
74 }
75 u8 NVReadGr(struct nvidia_par *par, u8 index)
76 {
77         VGA_WR08(par->PVIO, VGA_GFX_I, index);
78         return (VGA_RD08(par->PVIO, VGA_GFX_D));
79 }
80 void NVWriteSeq(struct nvidia_par *par, u8 index, u8 value)
81 {
82         VGA_WR08(par->PVIO, VGA_SEQ_I, index);
83         VGA_WR08(par->PVIO, VGA_SEQ_D, value);
84 }
85 u8 NVReadSeq(struct nvidia_par *par, u8 index)
86 {
87         VGA_WR08(par->PVIO, VGA_SEQ_I, index);
88         return (VGA_RD08(par->PVIO, VGA_SEQ_D));
89 }
90 void NVWriteAttr(struct nvidia_par *par, u8 index, u8 value)
91 {
92
93         VGA_RD08(par->PCIO, par->IOBase + 0x0a);
94         if (par->paletteEnabled)
95                 index &= ~0x20;
96         else
97                 index |= 0x20;
98         VGA_WR08(par->PCIO, VGA_ATT_IW, index);
99         VGA_WR08(par->PCIO, VGA_ATT_W, value);
100 }
101 u8 NVReadAttr(struct nvidia_par *par, u8 index)
102 {
103         VGA_RD08(par->PCIO, par->IOBase + 0x0a);
104         if (par->paletteEnabled)
105                 index &= ~0x20;
106         else
107                 index |= 0x20;
108         VGA_WR08(par->PCIO, VGA_ATT_IW, index);
109         return (VGA_RD08(par->PCIO, VGA_ATT_R));
110 }
111 void NVWriteMiscOut(struct nvidia_par *par, u8 value)
112 {
113         VGA_WR08(par->PVIO, VGA_MIS_W, value);
114 }
115 u8 NVReadMiscOut(struct nvidia_par *par)
116 {
117         return (VGA_RD08(par->PVIO, VGA_MIS_R));
118 }
119 void NVWriteDacMask(struct nvidia_par *par, u8 value)
120 {
121         VGA_WR08(par->PDIO, VGA_PEL_MSK, value);
122 }
123 void NVWriteDacReadAddr(struct nvidia_par *par, u8 value)
124 {
125         VGA_WR08(par->PDIO, VGA_PEL_IR, value);
126 }
127 void NVWriteDacWriteAddr(struct nvidia_par *par, u8 value)
128 {
129         VGA_WR08(par->PDIO, VGA_PEL_IW, value);
130 }
131 void NVWriteDacData(struct nvidia_par *par, u8 value)
132 {
133         VGA_WR08(par->PDIO, VGA_PEL_D, value);
134 }
135 u8 NVReadDacData(struct nvidia_par *par)
136 {
137         return (VGA_RD08(par->PDIO, VGA_PEL_D));
138 }
139
140 static int NVIsConnected(struct nvidia_par *par, int output)
141 {
142         volatile u32 __iomem *PRAMDAC = par->PRAMDAC0;
143         u32 reg52C, reg608, dac0_reg608 = 0;
144         int present;
145
146         if (output) {
147             dac0_reg608 = NV_RD32(PRAMDAC, 0x0608);
148             PRAMDAC += 0x800;
149         }
150
151         reg52C = NV_RD32(PRAMDAC, 0x052C);
152         reg608 = NV_RD32(PRAMDAC, 0x0608);
153
154         NV_WR32(PRAMDAC, 0x0608, reg608 & ~0x00010000);
155
156         NV_WR32(PRAMDAC, 0x052C, reg52C & 0x0000FEEE);
157         msleep(1);
158         NV_WR32(PRAMDAC, 0x052C, NV_RD32(PRAMDAC, 0x052C) | 1);
159
160         NV_WR32(par->PRAMDAC0, 0x0610, 0x94050140);
161         NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) |
162                 0x00001000);
163
164         msleep(1);
165
166         present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
167
168         if (present)
169                 printk("nvidiafb: CRTC%i analog found\n", output);
170         else
171                 printk("nvidiafb: CRTC%i analog not found\n", output);
172
173         if (output)
174             NV_WR32(par->PRAMDAC0, 0x0608, dac0_reg608);
175
176         NV_WR32(PRAMDAC, 0x052C, reg52C);
177         NV_WR32(PRAMDAC, 0x0608, reg608);
178
179         return present;
180 }
181
182 static void NVSelectHeadRegisters(struct nvidia_par *par, int head)
183 {
184         if (head) {
185                 par->PCIO = par->PCIO0 + 0x2000;
186                 par->PCRTC = par->PCRTC0 + 0x800;
187                 par->PRAMDAC = par->PRAMDAC0 + 0x800;
188                 par->PDIO = par->PDIO0 + 0x2000;
189         } else {
190                 par->PCIO = par->PCIO0;
191                 par->PCRTC = par->PCRTC0;
192                 par->PRAMDAC = par->PRAMDAC0;
193                 par->PDIO = par->PDIO0;
194         }
195 }
196
197 static void nv4GetConfig(struct nvidia_par *par)
198 {
199         if (NV_RD32(par->PFB, 0x0000) & 0x00000100) {
200                 par->RamAmountKBytes =
201                     ((NV_RD32(par->PFB, 0x0000) >> 12) & 0x0F) * 1024 * 2 +
202                     1024 * 2;
203         } else {
204                 switch (NV_RD32(par->PFB, 0x0000) & 0x00000003) {
205                 case 0:
206                         par->RamAmountKBytes = 1024 * 32;
207                         break;
208                 case 1:
209                         par->RamAmountKBytes = 1024 * 4;
210                         break;
211                 case 2:
212                         par->RamAmountKBytes = 1024 * 8;
213                         break;
214                 case 3:
215                 default:
216                         par->RamAmountKBytes = 1024 * 16;
217                         break;
218                 }
219         }
220         par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & 0x00000040) ?
221             14318 : 13500;
222         par->CURSOR = &par->PRAMIN[0x1E00];
223         par->MinVClockFreqKHz = 12000;
224         par->MaxVClockFreqKHz = 350000;
225 }
226
227 static void nv10GetConfig(struct nvidia_par *par)
228 {
229         struct pci_dev *dev;
230         u32 implementation = par->Chipset & 0x0ff0;
231
232 #ifdef __BIG_ENDIAN
233         /* turn on big endian register access */
234         if (!(NV_RD32(par->PMC, 0x0004) & 0x01000001)) {
235                 NV_WR32(par->PMC, 0x0004, 0x01000001);
236                 mb();
237         }
238 #endif
239
240         dev = pci_get_domain_bus_and_slot(pci_domain_nr(par->pci_dev->bus),
241                                           0, 1);
242         if ((par->Chipset & 0xffff) == 0x01a0) {
243                 u32 amt;
244
245                 pci_read_config_dword(dev, 0x7c, &amt);
246                 par->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
247         } else if ((par->Chipset & 0xffff) == 0x01f0) {
248                 u32 amt;
249
250                 pci_read_config_dword(dev, 0x84, &amt);
251                 par->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
252         } else {
253                 par->RamAmountKBytes =
254                     (NV_RD32(par->PFB, 0x020C) & 0xFFF00000) >> 10;
255         }
256         pci_dev_put(dev);
257
258         par->CrystalFreqKHz = (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 6)) ?
259             14318 : 13500;
260
261         if (par->twoHeads && (implementation != 0x0110)) {
262                 if (NV_RD32(par->PEXTDEV, 0x0000) & (1 << 22))
263                         par->CrystalFreqKHz = 27000;
264         }
265
266         par->CURSOR = NULL;     /* can't set this here */
267         par->MinVClockFreqKHz = 12000;
268         par->MaxVClockFreqKHz = par->twoStagePLL ? 400000 : 350000;
269 }
270
271 int NVCommonSetup(struct fb_info *info)
272 {
273         struct nvidia_par *par = info->par;
274         struct fb_var_screeninfo *var;
275         u16 implementation = par->Chipset & 0x0ff0;
276         u8 *edidA = NULL, *edidB = NULL;
277         struct fb_monspecs *monitorA, *monitorB;
278         struct fb_monspecs *monA = NULL, *monB = NULL;
279         int mobile = 0;
280         int tvA = 0;
281         int tvB = 0;
282         int FlatPanel = -1;     /* really means the CRTC is slaved */
283         int Television = 0;
284         int err = 0;
285
286         var = kzalloc(sizeof(struct fb_var_screeninfo), GFP_KERNEL);
287         monitorA = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
288         monitorB = kzalloc(sizeof(struct fb_monspecs), GFP_KERNEL);
289
290         if (!var || !monitorA || !monitorB) {
291                 err = -ENOMEM;
292                 goto done;
293         }
294
295         par->PRAMIN = par->REGS + (0x00710000 / 4);
296         par->PCRTC0 = par->REGS + (0x00600000 / 4);
297         par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
298         par->PFB = par->REGS + (0x00100000 / 4);
299         par->PFIFO = par->REGS + (0x00002000 / 4);
300         par->PGRAPH = par->REGS + (0x00400000 / 4);
301         par->PEXTDEV = par->REGS + (0x00101000 / 4);
302         par->PTIMER = par->REGS + (0x00009000 / 4);
303         par->PMC = par->REGS + (0x00000000 / 4);
304         par->FIFO = par->REGS + (0x00800000 / 4);
305
306         /* 8 bit registers */
307         par->PCIO0 = (u8 __iomem *) par->REGS + 0x00601000;
308         par->PDIO0 = (u8 __iomem *) par->REGS + 0x00681000;
309         par->PVIO = (u8 __iomem *) par->REGS + 0x000C0000;
310
311         par->twoHeads = (par->Architecture >= NV_ARCH_10) &&
312             (implementation != 0x0100) &&
313             (implementation != 0x0150) &&
314             (implementation != 0x01A0) && (implementation != 0x0200);
315
316         par->fpScaler = (par->FpScale && par->twoHeads &&
317                          (implementation != 0x0110));
318
319         par->twoStagePLL = (implementation == 0x0310) ||
320             (implementation == 0x0340) || (par->Architecture >= NV_ARCH_40);
321
322         par->WaitVSyncPossible = (par->Architecture >= NV_ARCH_10) &&
323             (implementation != 0x0100);
324
325         par->BlendingPossible = ((par->Chipset & 0xffff) != 0x0020);
326
327         /* look for known laptop chips */
328         switch (par->Chipset & 0xffff) {
329         case 0x0112:
330         case 0x0174:
331         case 0x0175:
332         case 0x0176:
333         case 0x0177:
334         case 0x0179:
335         case 0x017C:
336         case 0x017D:
337         case 0x0186:
338         case 0x0187:
339         case 0x018D:
340         case 0x01D7:
341         case 0x0228:
342         case 0x0286:
343         case 0x028C:
344         case 0x0316:
345         case 0x0317:
346         case 0x031A:
347         case 0x031B:
348         case 0x031C:
349         case 0x031D:
350         case 0x031E:
351         case 0x031F:
352         case 0x0324:
353         case 0x0325:
354         case 0x0328:
355         case 0x0329:
356         case 0x032C:
357         case 0x032D:
358         case 0x0347:
359         case 0x0348:
360         case 0x0349:
361         case 0x034B:
362         case 0x034C:
363         case 0x0160:
364         case 0x0166:
365         case 0x0169:
366         case 0x016B:
367         case 0x016C:
368         case 0x016D:
369         case 0x00C8:
370         case 0x00CC:
371         case 0x0144:
372         case 0x0146:
373         case 0x0147:
374         case 0x0148:
375         case 0x0098:
376         case 0x0099:
377                 mobile = 1;
378                 break;
379         default:
380                 break;
381         }
382
383         if (par->Architecture == NV_ARCH_04)
384                 nv4GetConfig(par);
385         else
386                 nv10GetConfig(par);
387
388         NVSelectHeadRegisters(par, 0);
389
390         NVLockUnlock(par, 0);
391
392         par->IOBase = (NVReadMiscOut(par) & 0x01) ? 0x3d0 : 0x3b0;
393
394         par->Television = 0;
395
396         nvidia_create_i2c_busses(par);
397         if (!par->twoHeads) {
398                 par->CRTCnumber = 0;
399                 if (nvidia_probe_i2c_connector(info, 1, &edidA))
400                         nvidia_probe_of_connector(info, 1, &edidA);
401                 if (edidA && !fb_parse_edid(edidA, var)) {
402                         printk("nvidiafb: EDID found from BUS1\n");
403                         monA = monitorA;
404                         fb_edid_to_monspecs(edidA, monA);
405                         FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
406
407                         /* NV4 doesn't support FlatPanels */
408                         if ((par->Chipset & 0x0fff) <= 0x0020)
409                                 FlatPanel = 0;
410                 } else {
411                         VGA_WR08(par->PCIO, 0x03D4, 0x28);
412                         if (VGA_RD08(par->PCIO, 0x03D5) & 0x80) {
413                                 VGA_WR08(par->PCIO, 0x03D4, 0x33);
414                                 if (!(VGA_RD08(par->PCIO, 0x03D5) & 0x01))
415                                         Television = 1;
416                                 FlatPanel = 1;
417                         } else {
418                                 FlatPanel = 0;
419                         }
420                         printk("nvidiafb: HW is currently programmed for %s\n",
421                                FlatPanel ? (Television ? "TV" : "DFP") :
422                                "CRT");
423                 }
424
425                 if (par->FlatPanel == -1) {
426                         par->FlatPanel = FlatPanel;
427                         par->Television = Television;
428                 } else {
429                         printk("nvidiafb: Forcing display type to %s as "
430                                "specified\n", par->FlatPanel ? "DFP" : "CRT");
431                 }
432         } else {
433                 u8 outputAfromCRTC, outputBfromCRTC;
434                 int CRTCnumber = -1;
435                 u8 slaved_on_A, slaved_on_B;
436                 int analog_on_A, analog_on_B;
437                 u32 oldhead;
438                 u8 cr44;
439
440                 if (implementation != 0x0110) {
441                         if (NV_RD32(par->PRAMDAC0, 0x0000052C) & 0x100)
442                                 outputAfromCRTC = 1;
443                         else
444                                 outputAfromCRTC = 0;
445                         if (NV_RD32(par->PRAMDAC0, 0x0000252C) & 0x100)
446                                 outputBfromCRTC = 1;
447                         else
448                                 outputBfromCRTC = 0;
449                         analog_on_A = NVIsConnected(par, 0);
450                         analog_on_B = NVIsConnected(par, 1);
451                 } else {
452                         outputAfromCRTC = 0;
453                         outputBfromCRTC = 1;
454                         analog_on_A = 0;
455                         analog_on_B = 0;
456                 }
457
458                 VGA_WR08(par->PCIO, 0x03D4, 0x44);
459                 cr44 = VGA_RD08(par->PCIO, 0x03D5);
460
461                 VGA_WR08(par->PCIO, 0x03D5, 3);
462                 NVSelectHeadRegisters(par, 1);
463                 NVLockUnlock(par, 0);
464
465                 VGA_WR08(par->PCIO, 0x03D4, 0x28);
466                 slaved_on_B = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
467                 if (slaved_on_B) {
468                         VGA_WR08(par->PCIO, 0x03D4, 0x33);
469                         tvB = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
470                 }
471
472                 VGA_WR08(par->PCIO, 0x03D4, 0x44);
473                 VGA_WR08(par->PCIO, 0x03D5, 0);
474                 NVSelectHeadRegisters(par, 0);
475                 NVLockUnlock(par, 0);
476
477                 VGA_WR08(par->PCIO, 0x03D4, 0x28);
478                 slaved_on_A = VGA_RD08(par->PCIO, 0x03D5) & 0x80;
479                 if (slaved_on_A) {
480                         VGA_WR08(par->PCIO, 0x03D4, 0x33);
481                         tvA = !(VGA_RD08(par->PCIO, 0x03D5) & 0x01);
482                 }
483
484                 oldhead = NV_RD32(par->PCRTC0, 0x00000860);
485                 NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
486
487                 if (nvidia_probe_i2c_connector(info, 1, &edidA))
488                         nvidia_probe_of_connector(info, 1, &edidA);
489                 if (edidA && !fb_parse_edid(edidA, var)) {
490                         printk("nvidiafb: EDID found from BUS1\n");
491                         monA = monitorA;
492                         fb_edid_to_monspecs(edidA, monA);
493                 }
494
495                 if (nvidia_probe_i2c_connector(info, 2, &edidB))
496                         nvidia_probe_of_connector(info, 2, &edidB);
497                 if (edidB && !fb_parse_edid(edidB, var)) {
498                         printk("nvidiafb: EDID found from BUS2\n");
499                         monB = monitorB;
500                         fb_edid_to_monspecs(edidB, monB);
501                 }
502
503                 if (slaved_on_A && !tvA) {
504                         CRTCnumber = 0;
505                         FlatPanel = 1;
506                         printk("nvidiafb: CRTC 0 is currently programmed for "
507                                "DFP\n");
508                 } else if (slaved_on_B && !tvB) {
509                         CRTCnumber = 1;
510                         FlatPanel = 1;
511                         printk("nvidiafb: CRTC 1 is currently programmed "
512                                "for DFP\n");
513                 } else if (analog_on_A) {
514                         CRTCnumber = outputAfromCRTC;
515                         FlatPanel = 0;
516                         printk("nvidiafb: CRTC %i appears to have a "
517                                "CRT attached\n", CRTCnumber);
518                 } else if (analog_on_B) {
519                         CRTCnumber = outputBfromCRTC;
520                         FlatPanel = 0;
521                         printk("nvidiafb: CRTC %i appears to have a "
522                                "CRT attached\n", CRTCnumber);
523                 } else if (slaved_on_A) {
524                         CRTCnumber = 0;
525                         FlatPanel = 1;
526                         Television = 1;
527                         printk("nvidiafb: CRTC 0 is currently programmed "
528                                "for TV\n");
529                 } else if (slaved_on_B) {
530                         CRTCnumber = 1;
531                         FlatPanel = 1;
532                         Television = 1;
533                         printk("nvidiafb: CRTC 1 is currently programmed for "
534                                "TV\n");
535                 } else if (monA) {
536                         FlatPanel = (monA->input & FB_DISP_DDI) ? 1 : 0;
537                 } else if (monB) {
538                         FlatPanel = (monB->input & FB_DISP_DDI) ? 1 : 0;
539                 }
540
541                 if (par->FlatPanel == -1) {
542                         if (FlatPanel != -1) {
543                                 par->FlatPanel = FlatPanel;
544                                 par->Television = Television;
545                         } else {
546                                 printk("nvidiafb: Unable to detect display "
547                                        "type...\n");
548                                 if (mobile) {
549                                         printk("...On a laptop, assuming "
550                                                "DFP\n");
551                                         par->FlatPanel = 1;
552                                 } else {
553                                         printk("...Using default of CRT\n");
554                                         par->FlatPanel = 0;
555                                 }
556                         }
557                 } else {
558                         printk("nvidiafb: Forcing display type to %s as "
559                                "specified\n", par->FlatPanel ? "DFP" : "CRT");
560                 }
561
562                 if (par->CRTCnumber == -1) {
563                         if (CRTCnumber != -1)
564                                 par->CRTCnumber = CRTCnumber;
565                         else {
566                                 printk("nvidiafb: Unable to detect which "
567                                        "CRTCNumber...\n");
568                                 if (par->FlatPanel)
569                                         par->CRTCnumber = 1;
570                                 else
571                                         par->CRTCnumber = 0;
572                                 printk("...Defaulting to CRTCNumber %i\n",
573                                        par->CRTCnumber);
574                         }
575                 } else {
576                         printk("nvidiafb: Forcing CRTCNumber %i as "
577                                "specified\n", par->CRTCnumber);
578                 }
579
580                 if (monA) {
581                         if (((monA->input & FB_DISP_DDI) &&
582                              par->FlatPanel) ||
583                             ((!(monA->input & FB_DISP_DDI)) &&
584                              !par->FlatPanel)) {
585                                 if (monB) {
586                                         fb_destroy_modedb(monB->modedb);
587                                         monB = NULL;
588                                 }
589                         } else {
590                                 fb_destroy_modedb(monA->modedb);
591                                 monA = NULL;
592                         }
593                 }
594
595                 if (monB) {
596                         if (((monB->input & FB_DISP_DDI) &&
597                              !par->FlatPanel) ||
598                             ((!(monB->input & FB_DISP_DDI)) &&
599                              par->FlatPanel)) {
600                                 fb_destroy_modedb(monB->modedb);
601                                 monB = NULL;
602                         } else
603                                 monA = monB;
604                 }
605
606                 if (implementation == 0x0110)
607                         cr44 = par->CRTCnumber * 0x3;
608
609                 NV_WR32(par->PCRTC0, 0x00000860, oldhead);
610
611                 VGA_WR08(par->PCIO, 0x03D4, 0x44);
612                 VGA_WR08(par->PCIO, 0x03D5, cr44);
613                 NVSelectHeadRegisters(par, par->CRTCnumber);
614         }
615
616         printk("nvidiafb: Using %s on CRTC %i\n",
617                par->FlatPanel ? (par->Television ? "TV" : "DFP") : "CRT",
618                par->CRTCnumber);
619
620         if (par->FlatPanel && !par->Television) {
621                 par->fpWidth = NV_RD32(par->PRAMDAC, 0x0820) + 1;
622                 par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
623                 par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
624
625                 printk("nvidiafb: Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
626         }
627
628         if (monA)
629                 info->monspecs = *monA;
630
631         if (!par->FlatPanel || !par->twoHeads)
632                 par->FPDither = 0;
633
634         par->LVDS = 0;
635         if (par->FlatPanel && par->twoHeads) {
636                 NV_WR32(par->PRAMDAC0, 0x08B0, 0x00010004);
637                 if (NV_RD32(par->PRAMDAC0, 0x08b4) & 1)
638                         par->LVDS = 1;
639                 printk("nvidiafb: Panel is %s\n", par->LVDS ? "LVDS" : "TMDS");
640         }
641
642         kfree(edidA);
643         kfree(edidB);
644 done:
645         kfree(var);
646         kfree(monitorA);
647         kfree(monitorB);
648         return err;
649 }