Commit dda7dcd9 authored by Ankit Nautiyal's avatar Ankit Nautiyal
Browse files

drm/i915/vrr: Use fixed timings for platforms that support VRR 



For fixed refresh rate use fixed timings for all platforms that support
VRR. For this add checks to avoid computing and reading VRR for
platforms that do not support VRR.

v2: Avoid touching check for VRR_CTL_FLIP_LINE_EN. (Ville)
v3: Avoid redundant statements in vrr_{compute/get}_config. (Ville)

Signed-off-by: default avatarAnkit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/20250324133248.4071909-10-ankit.k.nautiyal@intel.com
parent 7895991a

drivers/gpu/drm/i915/display/intel_vrr.c

+4 −4
Original line number Diff line number Diff line
@@ -353,6 +353,9 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, 
	struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;

	int vmin, vmax;



	if (!HAS_VRR(display))

		return;



	/*

	 * FIXME all joined pipes share the same transcoder.

	 * Need to account for that during VRR toggle/push/etc.
@@ -376,15 +379,12 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state, 
		vmax = vmin;

	}



	if (vmin >= vmax)

		return;



	crtc_state->vrr.vmin = vmin;

	crtc_state->vrr.vmax = vmax;



	crtc_state->vrr.flipline = crtc_state->vrr.vmin;



	if (crtc_state->uapi.vrr_enabled)

	if (crtc_state->uapi.vrr_enabled && vmin < vmax)

		intel_vrr_compute_vrr_timings(crtc_state);

	else if (is_cmrr_frac_required(crtc_state) && is_edp)

		intel_vrr_compute_cmrr_timings(crtc_state);