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| author |   Deepak S <deepak.s@linux.intel.com> | 2014-12-12 14:18:16 +0530 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-12-16 10:39:11 +0100 |
| commit | 98711167ce9e734dc0e41e158debb7f4c1269917 (patch) | |
| tree | f0b8936dfa6d01dc880cbd373461314cca2d0b57 | |
| parent | drm/i915/chv: Use timeout mode for RC6 on chv (diff) | |
| download | linux-dev-98711167ce9e734dc0e41e158debb7f4c1269917.tar.xz linux-dev-98711167ce9e734dc0e41e158debb7f4c1269917.zip | |
drm/i915: Skip gunit save/restore for cherryview
With cherryview onwards, Gunit hardware itself save and restore all the
Gunit registers. Skipping the "vlv_save_gunit_s0ix_state" &
"vlv_restore_gunit_s0ix_state" for cherryview in S3/S0ix sequence.
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 71be3c930a0e..95bc829184eb 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1298,7 +1298,9 @@ static int vlv_suspend_complete(struct drm_i915_private *dev_priv) err = vlv_allow_gt_wake(dev_priv, false); if (err) goto err2; - vlv_save_gunit_s0ix_state(dev_priv); + + if (!IS_CHERRYVIEW(dev_priv->dev)) + vlv_save_gunit_s0ix_state(dev_priv); err = vlv_force_gfx_clock(dev_priv, false); if (err) @@ -1329,7 +1331,8 @@ static int vlv_resume_prepare(struct drm_i915_private *dev_priv, */ ret = vlv_force_gfx_clock(dev_priv, true); - vlv_restore_gunit_s0ix_state(dev_priv); + if (!IS_CHERRYVIEW(dev_priv->dev)) + vlv_restore_gunit_s0ix_state(dev_priv); err = vlv_allow_gt_wake(dev_priv, true); if (!ret) |