Commit dd62608b authored by Ben Skeggs's avatar Ben Skeggs

drm/nvd0/disp: ignore clock set if no pclk

This happens somehow during init on a machine I have, and leads to a
divide-by-zero.

Lets avoid that...
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 27100ac9
...@@ -1661,7 +1661,9 @@ nvd0_display_unk2_handler(struct drm_device *dev, u32 crtc, u32 mask) ...@@ -1661,7 +1661,9 @@ nvd0_display_unk2_handler(struct drm_device *dev, u32 crtc, u32 mask)
} }
pclk = nv_rd32(dev, 0x660450 + (crtc * 0x300)) / 1000; pclk = nv_rd32(dev, 0x660450 + (crtc * 0x300)) / 1000;
if (mask & 0x00010000) { NV_DEBUG_KMS(dev, "PDISP: crtc %d pclk %d mask 0x%08x\n",
crtc, pclk, mask);
if (pclk && (mask & 0x00010000)) {
nv50_crtc_set_clock(dev, crtc, pclk); nv50_crtc_set_clock(dev, crtc, pclk);
} }
......
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