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| author | Ben Widawsky | 2013-11-03 05:07:06 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2013-11-08 18:09:38 +0100 |
| commit | 1020a5c2dcefae564c3e87ce934316dfcc1d8427 (patch) | |
| tree | 19e9ea69090ac9a4226305dab302058bb070a817 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915/bdw: HW context support (diff) | |
| download | kernel-qcow2-linux-1020a5c2dcefae564c3e87ce934316dfcc1d8427.tar.gz kernel-qcow2-linux-1020a5c2dcefae564c3e87ce934316dfcc1d8427.tar.xz kernel-qcow2-linux-1020a5c2dcefae564c3e87ce934316dfcc1d8427.zip | |
drm/i915/bdw: Clock gating init
Clock gating init is really a catch all function for registers we need
to write early in loading the driver.
Atm just the bare metal stuff we need, more will surely come.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 09ac9e79830f..281e68dca607 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5181,6 +5181,15 @@ static void lpt_suspend_hw(struct drm_device *dev) } } +static void gen8_init_clock_gating(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + I915_WRITE(WM3_LP_ILK, 0); + I915_WRITE(WM2_LP_ILK, 0); + I915_WRITE(WM1_LP_ILK, 0); +} + static void haswell_init_clock_gating(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -5833,6 +5842,8 @@ void intel_init_pm(struct drm_device *dev) dev_priv->display.update_wm = NULL; } dev_priv->display.init_clock_gating = haswell_init_clock_gating; + } else if (INTEL_INFO(dev)->gen == 8) { + dev_priv->display.init_clock_gating = gen8_init_clock_gating; } else dev_priv->display.update_wm = NULL; } else if (IS_VALLEYVIEW(dev)) { |