drm/amdgpu: Fix amdgpu_pm_acpi_event_handler warning

Include a missing header to get rid of the following warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:65:6: warning: no previous prototype for ‘amdgpu_pm_acpi_event_handler’ [-Wmissing-prototypes]
void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev)

      ^

Signed-off-by Jean Delvare <[email protected]>

Cc Alex Deucher <[email protected]>

Cc "Christian König" <[email protected]>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c |    2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h   |    1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c 2017-07-30 13:26:16.786365654 +0200 renamed from drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c 2017-07-30 13:18:54.991917627 +0200 +1 -1

@@ -30,10 +30,10 @@
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include "amdgpu.h"
+#include "amdgpu_pm.h"
 #include "amd_acpi.h"
 #include "atom.h"
 
-extern void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev);
 /* Call the ATIF method
  */
 /**

drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h 2017-07-30 13:26:16.787365666 +0200 renamed from drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h 2017-07-30 13:18:54.991917627 +0200 +1 -1

@@ -30,6 +30,7 @@ struct cg_flag_name
        const char *name;
 };
 
+void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev);
 int amdgpu_pm_sysfs_init(struct amdgpu_device *adev);
 void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev);
 void amdgpu_pm_print_power_states(struct amdgpu_device *adev);
 
 
--

Jean Delvare
SUSE L3 Support
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