> Subject: [PATCH v2 21/32] drm/i915/cx0: Add MTL+ .update_active_dpll hook
> 
> Add .update_active_dpll function pointer to support dpll framework. Reuse ICL
> function pointer.
> 
> v2: Add check for !HAS_LT_PHY (Suraj)

I did not comment asking for this change also brings some questions in my mind 
here

> 
> Signed-off-by: Mika Kahola <[email protected]>
> Reviewed-by: Suraj Kandpal <[email protected]>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c      | 3 +++
>  drivers/gpu/drm/i915/display/intel_dpll_mgr.c | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
> b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 002ccd47856d..6b43d326e50c 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3671,6 +3671,9 @@ void intel_ddi_update_active_dpll(struct
> intel_atomic_state *state,
>       if (DISPLAY_VER(display) >= 14 || !intel_encoder_is_tc(encoder))

So this check here will never let you call dpll_mgr->update_active_dpll hook
So do you not what to remove it.
If the answer is you want to keep this check then you do not need (!HAS_LT_PHY)
If the answer is you need to get this removed only then does it make sense to 
have this check
And the check should be return if (HAS_LT_PHY())

Regards,
Suraj Kandpal

>               return;
> 
> +     if (!HAS_LT_PHY(display))
> +             return;
> +
>       for_each_intel_crtc_in_pipe_mask(display->drm, pipe_crtc,
> 
> intel_crtc_joined_pipe_mask(crtc_state))
>               intel_dpll_update_active(state, pipe_crtc, encoder); diff --git
> a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> index c45f18201ee8..e6dd6f1123d6 100644
> --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c
> @@ -4449,6 +4449,7 @@ static const struct intel_dpll_mgr mtl_pll_mgr = {
>       .compute_dplls = mtl_compute_dplls,
>       .get_dplls = mtl_get_dplls,
>       .put_dplls = icl_put_dplls,
> +     .update_active_dpll = icl_update_active_dpll,
>  };
> 
>  /**
> --
> 2.34.1

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