[PATCH] drm/amdgpu: support B0&B1 external revision id for yellow carp

[Alex Deucher]

On Mon, Oct 18, 2021 at 11:22 PM Aaron Liu <aaron.liu at amd.com> wrote:
>
> B0 internal rev_id is 0x01, B1 internal rev_id is 0x02.
> The external rev_id for B0 and B1 is 0x20.
> The original expression is not suitable for B1.

Are you sure about this?  We'll be losing the difference between B0
and B1.  I think 0x19 is correct.  What will give us 0x1a for B0 and
0x1b for B1.  That aligns with what the display code has as well.

Alex


>
> Signed-off-by: Aaron Liu <aaron.liu at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/nv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
> index 898e688be63c..5166a1573e7e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/nv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/nv.c
> @@ -1248,7 +1248,7 @@ static int nv_common_early_init(void *handle)
>                         AMD_PG_SUPPORT_VCN_DPG |
>                         AMD_PG_SUPPORT_JPEG;
>                 if (adev->pdev->device == 0x1681)
> -                       adev->external_rev_id = adev->rev_id + 0x19;
> +                       adev->external_rev_id = 0x20;
>                 else
>                         adev->external_rev_id = adev->rev_id + 0x01;
>                 break;
> --
> 2.25.1
>