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drm/nouveau: don't use the default pll limits in table v2.1 on nv50+ cards

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This fixes issues bug 30370 and prevents another possible divide by zero on
the original nv50 cards, by returning -ENOENT

Signed-off-by: Emil Velikov <eeydev@nottingham.ac.uk>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Emil Velikov 2010-09-26 20:26:02 +01:00 committed by Ben Skeggs
parent 8af29ccd79
commit eadc69cc90
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/nouveau/nouveau_bios.c
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@ -4890,6 +4890,12 @@ int get_pll_limits(struct drm_device *dev, uint32_t limit_match, struct pll_lims
break;
}
if ((dev_priv->card_type >= NV_50) && (pllindex == 0)) {
NV_ERROR(dev, "Register 0x%08x not found in PLL "
"limits table", pll_lim->reg);
return -ENOENT;
}
pll_rec = &bios->data[plloffs + recordlen * pllindex];
BIOSLOG(bios, "Loading PLL limits for reg 0x%08x\n",