On Tue, 30 Sept 2025 at 12:01, Maxime Ripard <[email protected]> wrote:
>
> The vc4 atomic_check implementation uses the deprecated
> drm_atomic_get_existing_crtc_state() helper.
>
> This hook is called as part of the global atomic_check, thus before the
> states are swapped. The existing state thus points to the new state, and
> we can use drm_atomic_get_new_crtc_state() instead.
>
> Reviewed-by: Ville Syrjälä <[email protected]>
> Signed-off-by: Maxime Ripard <[email protected]>

Acked-by: Dave Stevenson <[email protected]>

> ---
> To: Maxime Ripard <[email protected]>
> To: Dave Stevenson <[email protected]>
> Cc: "Maíra Canal" <[email protected]>
> Cc: Raspberry Pi Kernel Maintenance <[email protected]>
> ---
>  drivers/gpu/drm/vc4/vc4_plane.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
> index 
> 056d344c5411db0eae975b0fa52c0de7418306f1..b4a53f68865bc18f6cb1fa92b1057890d3fe0382
>  100644
> --- a/drivers/gpu/drm/vc4/vc4_plane.c
> +++ b/drivers/gpu/drm/vc4/vc4_plane.c
> @@ -495,12 +495,11 @@ static int vc4_plane_setup_clipping_and_scaling(struct 
> drm_plane_state *state)
>         struct drm_crtc_state *crtc_state;
>         u32 h_subsample = fb->format->hsub;
>         u32 v_subsample = fb->format->vsub;
>         int ret;
>
> -       crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> -                                                       state->crtc);
> +       crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
>         if (!crtc_state) {
>                 DRM_DEBUG_KMS("Invalid crtc state\n");
>                 return -EINVAL;
>         }
>
> @@ -873,12 +872,11 @@ static void vc4_plane_calc_load(struct drm_plane_state 
> *state)
>         struct vc4_plane_state *vc4_state;
>         struct drm_crtc_state *crtc_state;
>         unsigned int vscale_factor;
>
>         vc4_state = to_vc4_plane_state(state);
> -       crtc_state = drm_atomic_get_existing_crtc_state(state->state,
> -                                                       state->crtc);
> +       crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
>         vrefresh = drm_mode_vrefresh(&crtc_state->adjusted_mode);
>
>         /* The HVS is able to process 2 pixels/cycle when scaling the source,
>          * 4 pixels/cycle otherwise.
>          * Alpha blending step seems to be pipelined and it's always operating
>
> --
> 2.51.0
>

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