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| author | Ben Skeggs <bskeggs@redhat.com> | 2011-07-28 00:52:13 (GMT) |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 09:01:10 (GMT) |
| commit | 04de6a046188d86ff60b1ede974dbf580287fc98 (patch) | |
| tree | d6ed41b5f6f00580ca446bdc07f6f392028a0179 | |
| parent | 9232969e19ae7251a93ab72e405cf71e5109ec05 (diff) | |
| download | linux-fsl-qoriq-04de6a046188d86ff60b1ede974dbf580287fc98.tar.xz | |
drm/nv41/pm: implement a second type of fanspeed pwm
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_pm.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_state.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv40_pm.c | 27 |
3 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.h b/drivers/gpu/drm/nouveau/nouveau_pm.h index bbab701..f19b050 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.h +++ b/drivers/gpu/drm/nouveau/nouveau_pm.h @@ -58,6 +58,8 @@ void *nv40_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *); void nv40_pm_clocks_set(struct drm_device *, void *); int nv40_pm_fanspeed_get(struct drm_device *); int nv40_pm_fanspeed_set(struct drm_device *, int percent); +int nv41_pm_fanspeed_get(struct drm_device *); +int nv41_pm_fanspeed_set(struct drm_device *, int percent); /* nv50_pm.c */ int nv50_pm_clock_get(struct drm_device *, u32 id); diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 06664e7..0806d01 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -298,6 +298,13 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev) engine->pm.fanspeed_get = nv40_pm_fanspeed_get; engine->pm.fanspeed_set = nv40_pm_fanspeed_set; break; + case 0x42: + case 0x43: + case 0x47: + case 0x4b: + engine->pm.fanspeed_get = nv41_pm_fanspeed_get; + engine->pm.fanspeed_set = nv41_pm_fanspeed_set; + break; default: break; } 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; +} |