Re: [PATCH 1/3] drm/i915/display: Move casf_compute_config

Nautiyal, Ankit K
2026-03-12T03:13:32Z

On 12/23/2025 1:42 PM, Nemesa Garg wrote:
> Prefill calculations are getting screwed up as casf_compute
> is getting called in later stage. So move casf_compute_config
> to crtc_compute_config and check if there is a change in the
> sharpness strength, if so set the flag uapi.mode_changed
> so that everytime when strength changes casf_compute_config
> can be called and new strength value gets updated.

Nit: Please wrap the commit message to ~75 characters as per kernel
guidelines.

Patch looks good to me.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>

>
> v2: Remove extra casf_check [Ville]
>
> Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 12 ++++++++----
> 1 file changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 9c6d3ecdb589..568730ffe359 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2494,6 +2494,10 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
>
> intel_vrr_compute_guardband(crtc_state);
>
> + ret = intel_casf_compute_config(crtc_state);
> + if (ret)
> + return ret;
> +
> return 0;
> }
>
> @@ -4286,10 +4290,6 @@ static int intel_crtc_atomic_check(struct intel_atomic_state *state,
> return ret;
> }
>
> - ret = intel_casf_compute_config(crtc_state);
> - if (ret)
> - return ret;
> -
> if (DISPLAY_VER(display) >= 9) {
> if (intel_crtc_needs_modeset(crtc_state) ||
> intel_crtc_needs_fastset(crtc_state) ||
> @@ -6431,6 +6431,10 @@ int intel_atomic_check(struct drm_device *dev,
> if (new_crtc_state->uapi.scaling_filter !=
> old_crtc_state->uapi.scaling_filter)
> new_crtc_state->uapi.mode_changed = true;
> +
> + if (new_crtc_state->uapi.sharpness_strength !=
> + old_crtc_state->uapi.sharpness_strength)
> + new_crtc_state->uapi.mode_changed = true;
> }
>
> intel_vrr_check_modeset(state);