disp: msm: sde: flush esd work before disabling the encoder

Flush ESD status work before resetting the encoder state during
virt_disable sequence to avoid stale pointers being used in
the ESD work.

Change-Id: I4bb08a7a7ae33ad6386169667692736e554141c4
Signed-off-by: Kalyan Thota <[email protected]>

msm/sde/sde_connector.c

@@ -2769,7 +2769,7 @@ static void sde_connector_check_status_work(struct work_struct *work)
 	dev = conn->base.dev->dev;
 
 	if (!conn->ops.check_status || dev->power.is_suspended ||
-			(conn->dpms_mode != DRM_MODE_DPMS_ON)) {
+			(conn->lp_mode == SDE_MODE_DPMS_OFF)) {
 		SDE_DEBUG("dpms mode: %d\n", conn->dpms_mode);
 		mutex_unlock(&conn->lock);
 		return;

msm/sde/sde_encoder.c

@@ -3066,6 +3066,7 @@ void sde_encoder_virt_reset(struct drm_encoder *drm_enc)
 static void sde_encoder_virt_disable(struct drm_encoder *drm_enc)
 {
 	struct sde_encoder_virt *sde_enc = NULL;
+	struct sde_connector *sde_conn;
 	struct sde_kms *sde_kms;
 	enum sde_intf_mode intf_mode;
 	int ret, i = 0;
@@ -3087,6 +3088,7 @@ static void sde_encoder_virt_disable(struct drm_encoder *drm_enc)
 	}
 
 	sde_enc = to_sde_encoder_virt(drm_enc);
+	sde_conn = to_sde_connector(sde_enc->cur_master->connector);
 	SDE_DEBUG_ENC(sde_enc, "\n");
 
 	sde_kms = sde_encoder_get_kms(&sde_enc->base);
@@ -3103,6 +3105,7 @@ static void sde_encoder_virt_disable(struct drm_encoder *drm_enc)
 
 	_sde_encoder_input_handler_unregister(drm_enc);
 
+	flush_delayed_work(&sde_conn->status_work);
 	/*
 	 * For primary command mode and video mode encoders, execute the
 	 * resource control pre-stop operations before the physical encoders