[PATCH] drm/i915/psr: Set DP_PSR_SU_REGION_SCANLINE_CAPTURE bit when needed

[Jouni Högander]

Setting DP_PSR_SU_REGION_SCANLINE_CAPTURE (Selective Update Region Scan
Line Capture Indication in spec) bit was dropped when psr_enable_sink was
split to _psr_enable_sink and _panel_replay_enable_sink. Add setting it
back.

Fixes: 32f0045f905c ("drm/i915/psr: Split enabling sink for PSR and Panel 
Replay")
Signed-off-by: Jouni Högander <jouni.hogan...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c 
b/drivers/gpu/drm/i915/display/intel_psr.c
index a9d9383e4ee5..0dbcaf644624 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -732,6 +732,9 @@ static void _psr_enable_sink(struct intel_dp *intel_dp,
                        val |= DP_PSR_CRC_VERIFICATION;
        }
 
+       if (crtc_state->req_psr2_sdp_prior_scanline)
+               val |= DP_PSR_SU_REGION_SCANLINE_CAPTURE;
+
        if (crtc_state->enable_psr2_su_region_et)
                val |= DP_PANEL_REPLAY_ENABLE_SU_REGION_ET;
 
-- 
2.34.1