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drm/i915: WARN if !HAS_PC8 when enabling/disabling PC8 

We already have some checks and shouldn't be reaching these places on
!HAS_PC8 platforms, but add a WARN,  just in case.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-11-21 13:47:15 -02:00 committed by Daniel Vetter
parent 8212d56329
commit 7125ecb829
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/intel_display.c
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@ -6638,6 +6638,8 @@ void hsw_enable_pc8_work(struct work_struct *__work)
struct drm_device *dev = dev_priv->dev;
uint32_t val;
WARN_ON(!HAS_PC8(dev));
if (dev_priv->pc8.enabled)
return;
@ -6683,6 +6685,8 @@ static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
if (dev_priv->pc8.disable_count != 1)
return;
WARN_ON(!HAS_PC8(dev));
cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
if (!dev_priv->pc8.enabled)
return;