[PATCH v3 18/20] drm/i915/psr: Modify dg2_activate_panel_replay to support eDP

["Jouni Högander" <jouni.hogander@intel.com>]

There are couple of bits in PSR2_CTL which needs to be written in case of
eDP Panel Replay

Bspec: 68920

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 50021e797120..38874ca46c16 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -929,6 +929,18 @@ static u8 frames_before_su_entry(struct intel_dp *intel_dp)
 static void dg2_activate_panel_replay(struct intel_dp *intel_dp)
 {
 	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+	struct intel_psr *psr = &intel_dp->psr;
+	enum transcoder cpu_transcoder = intel_dp->psr.transcoder;
+
+	if (intel_dp_is_edp(intel_dp) && psr->sel_update_enabled) {
+		u32 val = LNL_EDP_PSR2_SU_REGION_ET_ENABLE;
+
+		if (intel_dp->psr.req_psr2_sdp_prior_scanline)
+			val |= EDP_PSR2_SU_SDP_SCANLINE;
+
+		intel_de_write(dev_priv, EDP_PSR2_CTL(dev_priv, cpu_transcoder),
+			       val);
+	}
 
 	intel_de_rmw(dev_priv,
 		     PSR2_MAN_TRK_CTL(dev_priv, intel_dp->psr.transcoder),
-- 
2.34.1