disp: msm: sde: update uidle ctl register only for master encoder

In case of dual dsi usecase, since both the encoders use
the same CTL path, this change ensures that uidle ctl
settings are updated only by the master encoder.

Change-Id: Ic47703aeee69999b4535034b5cd7a65cf53cd0fb
Signed-off-by: Yashwanth <quic_yvulapu@quicinc.com>

msm/sde/sde_encoder.c

@@ -145,7 +145,8 @@ void sde_encoder_uidle_enable(struct drm_encoder *drm_enc, bool enable)
 	for (i = 0; i < sde_enc->num_phys_encs; i++) {
 		struct sde_encoder_phys *phys = sde_enc->phys_encs[i];
 
-		if (phys && phys->hw_ctl && phys->hw_ctl->ops.uidle_enable) {
+		if (phys && phys->hw_ctl && phys->hw_ctl->ops.uidle_enable &&
+				phys->split_role != ENC_ROLE_SLAVE) {
 			if (enable)
 				SDE_EVT32(DRMID(drm_enc), enable);
 			phys->hw_ctl->ops.uidle_enable(phys->hw_ctl, enable);