SOC15 DC support warning

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On Tue, Jul 3, 2018 at 12:36 PM, Michel Dänzer <michel at daenzer.net> wrote:
> On 2018-07-03 06:13 PM, Felix Kuehling wrote:
>> On 2018-07-03 10:19 AM, Tom St Denis wrote:
>>> Hi all,
>>>
>>> This block
>>>
>>> #if defined(CONFIG_DRM_AMD_DC)
>>>         else if (amdgpu_device_has_dc_support(adev))
>>>             amdgpu_device_ip_block_add(adev, &dm_ip_block);
>>> #else
>>> #    warning "Enable CONFIG_DRM_AMD_DC for display support on SOC15."
>>> #endif
>>>
>>>
>>> in soc15_set_ip_blocks() should probably be ported to a runtime
>>> drm_warn() no?  This means a kernel with no DC support will just
>>> silently fail to light up on SOC15.
>>>
>>> I can write a patch for this if nobody objects.
>>
>> Maybe do both. So someone building a kernel without DC gets a warning as
>> well as someone running it.
>
> Yep, we already do both for CONFIG_MTRR & CONFIG_X86_PAT.
>
> BTW, the build warning should also be guarded by #ifndef
> CONFIG_COMPILE_TEST, per commit 31bb90f1cd084 "drm/amdgpu: shut up
> #warning for compile testing".
>
>
> OTOH, do we even need the capability to build the driver without DC anymore?

Yeah, we can probably go ahead and remove CONFIG_DRM_AMD_DC.

Alex

>
>
> --
> Earthling Michel Dänzer               |               http://www.amd.com
> Libre software enthusiast             |             Mesa and X developer
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