[PATCH 18/23] drm/i915/dp: Set FAVT mode in DP SDP with fixed refresh rate

[Ankit Nautiyal]

While running with fixed refresh rate and VRR timing generator set FAVT
mode (Fixed Vtotal) in DP Adaptive Sync SDP to intimate the panel
about Fixed refresh rate.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Reviewed-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 3ef171fbf2f0..95ecd07b55da 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2785,7 +2785,10 @@ static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
 		as_sdp->target_rr = drm_mode_vrefresh(adjusted_mode);
 		as_sdp->target_rr_divider = true;
 	} else {
-		as_sdp->mode = DP_AS_SDP_AVT_DYNAMIC_VTOTAL;
+		if (crtc_state->vrr.mode == INTEL_VRRTG_MODE_FIXED_RR)
+			as_sdp->mode = DP_AS_SDP_AVT_FIXED_VTOTAL;
+		else
+			as_sdp->mode = DP_AS_SDP_AVT_DYNAMIC_VTOTAL;
 		as_sdp->vtotal = adjusted_mode->vtotal;
 		as_sdp->target_rr = 0;
 	}
-- 
2.45.2