diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv40_pm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv40_pm.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c b/drivers/gpu/drm/nouveau/nv40_pm.c index c969bcb..e7660b1 100644 --- a/drivers/gpu/drm/nouveau/nv40_pm.c +++ b/drivers/gpu/drm/nouveau/nv40_pm.c @@ -372,3 +372,30 @@ nv40_pm_fanspeed_set(struct drm_device *dev, int percent) nv_wr32(dev, 0x0010f0, 0x80000000 | (duty << 16) | divs); return 0; } + +int +nv41_pm_fanspeed_get(struct drm_device *dev) +{ + u32 reg = nv_rd32(dev, 0x0015f4); + if (reg & 0x80000000) { + u32 divs = nv_rd32(dev, 0x0015f8); + u32 duty = (reg & 0x7fffffff); + if (divs && divs >= duty) + return ((divs - duty) * 100) / divs; + } + + return 100; +} + +int +nv41_pm_fanspeed_set(struct drm_device *dev, int percent) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_pm_engine *pm = &dev_priv->engine.pm; + u32 divs = pm->pwm_divisor; + u32 duty = ((100 - percent) * divs) / 100; + + nv_wr32(dev, 0x0015f8, divs); + nv_wr32(dev, 0x0015f4, duty | 0x80000000); + return 0; +} |