[PATCH] drm/i915/opregion: add missing intel_opregion_cleanup() dummy

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

When ACPI is disabled, i915 fails to build because of a missing
declaration:

drivers/gpu/drm/i915/i915_driver.c: In function 'i915_driver_hw_probe':
drivers/gpu/drm/i915/i915_driver.c:556:9: error: implicit declaration of function 'intel_opregion_cleanup'; did you mean 'intel_opregion_setup'? [-Werror=implicit-function-declaration]
  556 |         intel_opregion_cleanup(dev_priv);

Add another empty dummy helper next to intel_opregion_setup().

Fixes: 3e226e4a2180 ("drm/i915/opregion: Cleanup opregion after errors during driver loading")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_opregion.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_opregion.h b/drivers/gpu/drm/i915/display/intel_opregion.h
index 181eb3e9abbf..fd2ea8ef0fa2 100644
--- a/drivers/gpu/drm/i915/display/intel_opregion.h
+++ b/drivers/gpu/drm/i915/display/intel_opregion.h
@@ -86,6 +86,10 @@ static inline int intel_opregion_setup(struct drm_i915_private *dev_priv)
 	return 0;
 }
 
+static inline void intel_opregion_cleanup(struct drm_i915_private *i915)
+{
+}
+
 static inline void intel_opregion_register(struct drm_i915_private *dev_priv)
 {
 }
-- 
2.39.2