[PATCH 2/3] drm/amd: Add PSP DMCU support

[Huang Rui]

On Tue, Sep 11, 2018 at 03:15:12PM -0400, David Francis wrote:
> DMCU (Display Microcontroller Unit) is a GPU chip involved in
> eDP features like Adaptive Backlight Modulation and Panel Self
> Refresh.
> 
> PSP is already equipped to handle DMCU firmware loading, all
> that is needed is to translate between the new DMCU ucode ID and
> the equivalent psp_gfx_fw_type.
> 
> Signed-off-by: David Francis <David.Francis at amd.com>

Reviewed-by: Huang Rui <ray.huang at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/psp_v10_0.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> index 02be34e72ed9..240dc8c85867 100644
> --- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
> @@ -91,6 +91,12 @@ psp_v10_0_get_fw_type(struct amdgpu_firmware_info *ucode, enum psp_gfx_fw_type *
>  	case AMDGPU_UCODE_ID_VCN:
>  		*type = GFX_FW_TYPE_VCN;
>  		break;
> +	case AMDGPU_UCODE_ID_DMCU_ERAM:
> +		*type = GFX_FW_TYPE_DMCU_ERAM;
> +		break;
> +	case AMDGPU_UCODE_ID_DMCU_INTV:
> +		*type = GFX_FW_TYPE_DMCU_ISR;
> +		break;
>  	case AMDGPU_UCODE_ID_MAXIMUM:
>  	default:
>  		return -EINVAL;
> -- 
> 2.17.1
> 
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