Re: [PATCH] drm/amdgpu: enable amdgpu_dc module parameter

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On Thu, Jan 20, 2022 at 1:25 AM Lang Yu <Lang.Yu@xxxxxxx> wrote:
>
> It doesn't work under IP discovery mode. Make it work!
>
> Signed-off-by: Lang Yu <Lang.Yu@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> index 07965ac6381b..1ad137499e38 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
> @@ -846,8 +846,14 @@ static int amdgpu_discovery_set_display_ip_blocks(struct amdgpu_device *adev)
>  {
>         if (adev->enable_virtual_display || amdgpu_sriov_vf(adev)) {
>                 amdgpu_device_ip_block_add(adev, &amdgpu_vkms_ip_block);
> +               return 0;
> +       }
> +
> +       if (!amdgpu_device_has_dc_support(adev))
> +               return 0;
> +
>  #if defined(CONFIG_DRM_AMD_DC)
> -       } else if (adev->ip_versions[DCE_HWIP][0]) {
> +       if (adev->ip_versions[DCE_HWIP][0]) {
>                 switch (adev->ip_versions[DCE_HWIP][0]) {
>                 case IP_VERSION(1, 0, 0):
>                 case IP_VERSION(1, 0, 1):
> @@ -882,9 +888,9 @@ static int amdgpu_discovery_set_display_ip_blocks(struct amdgpu_device *adev)
>                                 adev->ip_versions[DCI_HWIP][0]);
>                         return -EINVAL;
>                 }
> -#endif
>         }
>         return 0;
> +#endif

I think the compiler will complain about this.  If you move the #endif
before the return, the patch is:
Reviewed-by: Alex Deucher <aleander.deucher@xxxxxxx>

>  }
>
>  static int amdgpu_discovery_set_gc_ip_blocks(struct amdgpu_device *adev)
> --
> 2.25.1
>



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