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[PATCH -next] gpu: i915: fix build errors when ACPI is not enabled

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From: Randy Dunlap <rdunlap@infradead.org>

Fix build errors when ACPI is not enabled by adding function stubs:

../drivers/gpu/drm/i915/i915_drv.c: In function 'i915_drm_suspend':
../drivers/gpu/drm/i915/i915_drv.c:635:2: error: implicit declaration of function 'intel_opregion_unregister' [-Werror=implicit-function-declaration]
  intel_opregion_unregister(dev_priv);
../drivers/gpu/drm/i915/i915_drv.c: In function 'i915_drm_resume':
../drivers/gpu/drm/i915/i915_drv.c:798:2: error: implicit declaration of function 'intel_opregion_register' [-Werror=implicit-function-declaration]
  intel_opregion_register(dev_priv);

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc:	Daniel Vetter <daniel.vetter@intel.com>
Cc:	Jani Nikula <jani.nikula@linux.intel.com>
Cc:	intel-gfx@lists.freedesktop.org
Cc:	dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/i915/i915_drv.h |    2 ++
 1 file changed, 2 insertions(+)

--- linux-next-20160624.orig/drivers/gpu/drm/i915/i915_drv.h
+++ linux-next-20160624/drivers/gpu/drm/i915/i915_drv.h
@@ -3694,6 +3694,8 @@ extern int intel_opregion_notify_adapter
 extern int intel_opregion_get_panel_type(struct drm_i915_private *dev_priv);
 #else
 static inline int intel_opregion_setup(struct drm_i915_private *dev) { return 0; }
+static inline void intel_opregion_register(struct drm_i915_private *dev_priv) { }
+static inline void intel_opregion_unregister(struct drm_i915_private *dev_priv) { }
 static inline void intel_opregion_init(struct drm_i915_private *dev) { }
 static inline void intel_opregion_fini(struct drm_i915_private *dev) { }
 static inline void intel_opregion_asle_intr(struct drm_i915_private *dev_priv)

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[PATCH -next] gpu: i915: fix build errors when ACPI is not enabled Randy Dunlap <rdunlap@infradead.org> - 2016-06-25 20:00 +0200
  [PATCH] drm/i915: fix build errors when ACPI is not enabled Jani Nikula <jani.nikula@intel.com> - 2016-06-27 14:00 +0200
    Re: [PATCH] drm/i915: fix build errors when ACPI is not enabled Chris Wilson <chris@chris-wilson.co.uk> - 2016-06-28 10:10 +0200
      Re: [PATCH] drm/i915: fix build errors when ACPI is not enabled Jani Nikula <jani.nikula@intel.com> - 2016-06-28 13:10 +0200

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