drm/i915/psr: Modify dg2_activate_panel_replay to support eDP

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

Bspec: 68920

v2: use boolean instead of assuming eDP Panel Replay mean Early Transport
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-12-jouni.hogander@intel.com

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

@@ -951,6 +951,19 @@ 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 = psr->su_region_et_enabled ?
+			LNL_EDP_PSR2_SU_REGION_ET_ENABLE : 0;
+
+		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),