drm/nv04/pm: recalibrate timer on nvclk changes

Signed-off-by: Martin Peres <[e-mail]>
Signed-off-by: Ben Skeggs <[e-mail]>

drivers/gpu/drm/nouveau/nv04_pm.c

···
 nv04_pm_clock_set(struct drm_device *dev, void *pre_state)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
 	struct nv04_pm_state *state = pre_state;
 	u32 reg = state->pll.reg;
 
···
 		/* Reset the DLLs */
 		nv_mask(dev, 0x1002c0, 0, 1 << 8);
 	}
+
+	if (reg == NV_PRAMDAC_NVPLL_COEFF)
+		ptimer->init(dev);
 
 	kfree(state);
 }