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| author | Emil Velikov <eeydev@nottingham.ac.uk> | 2010-09-26 23:26:02 +0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-10-05 03:59:34 +0400 |
| commit | eadc69cc9054594ff7860d407f855536af13af99 (patch) | |
| tree | 1076b2a26039a15a0ee29ec6f9c686bda6c51631 /drivers/gpu/drm/nouveau/nouveau_bios.c | |
| parent | 8af29ccd7917ab448ea7b5cf581fa7b2b4ea3cba (diff) | |
| download | linux-eadc69cc9054594ff7860d407f855536af13af99.tar.xz | |
drm/nouveau: don't use the default pll limits in table v2.1 on nv50+ cards
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>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index c66d4567a2ed..53f4eba65cb9 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -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", |