[PATCH 4/5] drm/amd/display: Set min dcfclk/fclk to powerplay for RV

[Alex Deucher]

On Tue, Jul 3, 2018 at 5:46 AM, Rex Zhu <rex.zhu at amd.com> wrote:
> powerplay can notify smu to recalculates the maximum deep-sleep
> divider that display allowed.
>
> Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
> index 50e8630..2e6518f 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c
> @@ -454,10 +454,21 @@ void pp_rv_set_display_requirement(struct pp_smu *pp,
>         struct dc_context *ctx = pp->ctx;
>         struct amdgpu_device *adev = ctx->driver_context;
>         const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
> +       void *pp_handle = adev->powerplay.pp_handle;
> +       struct pp_display_clock_request request;
>
> -       if (!pp_funcs || !pp_funcs->display_configuration_changed)
> +       if (!pp_funcs || !pp_funcs->display_configuration_changed
> +               || !pp_funcs->display_clock_voltage_request)
>                 return;
>
> +       request.clock_type = dc_to_pp_clock_type(DM_PP_CLOCK_TYPE_DCFCLK);
> +       request.clock_freq_in_khz = req->hard_min_dcefclk_khz;
> +       pp_funcs->display_clock_voltage_request(pp_handle, &request);
> +
> +       request.clock_type = dc_to_pp_clock_type(DM_PP_CLOCK_TYPE_FCLK);
> +       request.clock_freq_in_khz = req->hard_min_fclk_khz;
> +       pp_funcs->display_clock_voltage_request(pp_handle, &request);
> +
>         amdgpu_dpm_display_configuration_changed(adev);
>  }
>
> --
> 1.9.1
>
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