@@ -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