diff options
| -rw-r--r-- | drivers/video/sis/sis_main.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c index 2fb8c5a660fb..2c5de66dacf8 100644 --- a/drivers/video/sis/sis_main.c +++ b/drivers/video/sis/sis_main.c @@ -4627,11 +4627,11 @@ sisfb_post_xgi_rwtest(struct sis_video_info *ivideo, int starta, return 1; } -static void __devinit +static int __devinit sisfb_post_xgi_ramsize(struct sis_video_info *ivideo) { unsigned int buswidth, ranksize, channelab, mapsize; - int i, j, k, l; + int i, j, k, l, status; u8 reg, sr14; static const u8 dramsr13[12 * 5] = { 0x02, 0x0e, 0x0b, 0x80, 0x5d, @@ -4673,7 +4673,7 @@ sisfb_post_xgi_ramsize(struct sis_video_info *ivideo) SiS_SetReg(SISSR, 0x13, 0x35); SiS_SetReg(SISSR, 0x14, 0x41); /* TODO */ - return; + return -ENOMEM; } /* Non-interleaving */ @@ -4835,6 +4835,7 @@ bail_out: j = (ivideo->chip == XGI_20) ? 5 : 9; k = (ivideo->chip == XGI_20) ? 12 : 4; + status = -EIO; for(i = 0; i < k; i++) { @@ -4868,11 +4869,15 @@ bail_out: SiS_SetRegANDOR(SISSR, 0x14, 0x0f, (reg & 0xf0)); sisfb_post_xgi_delay(ivideo, 1); - if(sisfb_post_xgi_rwtest(ivideo, j, ((reg >> 4) + channelab - 2 + 20), mapsize)) + if (sisfb_post_xgi_rwtest(ivideo, j, ((reg >> 4) + channelab - 2 + 20), mapsize)) { + status = 0; break; + } } iounmap(ivideo->video_vbase); + + return status; } static void __devinit @@ -5648,6 +5653,7 @@ sisfb_post_xgi(struct pci_dev *pdev) SiS_SetReg(SISSR, 0x14, bios[regb + 0xe0 + 8]); } else { + int err; /* Set default mode, don't clear screen */ ivideo->SiS_Pr.SiS_UseOEM = false; @@ -5661,10 +5667,16 @@ sisfb_post_xgi(struct pci_dev *pdev) /* Disable read-cache */ SiS_SetRegAND(SISSR, 0x21, 0xdf); - sisfb_post_xgi_ramsize(ivideo); + err = sisfb_post_xgi_ramsize(ivideo); /* Enable read-cache */ SiS_SetRegOR(SISSR, 0x21, 0x20); + if (err) { + dev_err(&pdev->dev, + "%s: RAM size detection failed: %d\n", + __func__, err); + return 0; + } } #if 0 |
