On Thu, 13 Apr 2023, Ville Syrjala <[email protected]> wrote:
> From: Ville Syrjälä <[email protected]>
>
> intel_mpllb_state_verify() blows up if you call it for a
> non-modeset/fastset commit on account of the relevant
> connector not being part of the overall atomic state.
> Currently the state checker only runs for modeset/fastset
> commits, but for testing purposes it is sometimes desirable
> to run it for other commits too. Check for modeset/fastset
> in intel_mpllb_state_verify() itself to make this safe.

Seems a bit redundant, but okay.

Reviewed-by: Jani Nikula <[email protected]>


>
> Signed-off-by: Ville Syrjälä <[email protected]>
> ---
>  drivers/gpu/drm/i915/display/intel_snps_phy.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_snps_phy.c 
> b/drivers/gpu/drm/i915/display/intel_snps_phy.c
> index 1cfb94b5cedb..4efc79d47e43 100644
> --- a/drivers/gpu/drm/i915/display/intel_snps_phy.c
> +++ b/drivers/gpu/drm/i915/display/intel_snps_phy.c
> @@ -2007,6 +2007,10 @@ void intel_mpllb_state_verify(struct 
> intel_atomic_state *state,
>       if (!new_crtc_state->hw.active)
>               return;
>  
> +     if (!intel_crtc_needs_modeset(new_crtc_state) &&
> +         !intel_crtc_needs_fastset(new_crtc_state))
> +             return;
> +
>       encoder = intel_get_crtc_new_encoder(state, new_crtc_state);
>       intel_mpllb_readout_hw_state(encoder, &mpllb_hw_state);

-- 
Jani Nikula, Intel Open Source Graphics Center

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