linux-next: build failure after merge of the amdgpu tree

Hi all,

After merging the amdgpu tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: In function 'amdgpu_dm_initialize_drm_device':
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:3728:7: error: implicit declaration of function 'register_outbox_irq_handlers'; did you mean 'register_hpd_handlers'? [-Werror=implicit-function-declaration]
 3728 |   if (register_outbox_irq_handlers(dm->adev)) {
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |       register_hpd_handlers

Caused by commit

  77a49c458931 ("drm/amd/display: Support for DMUB AUX")

I have used the amdgpu tree from next-20210504 for today.

-- 
Cheers,
Stephen Rothwell