msm: mdss: clean up ctl during cont splash resolution change

During boot-up, if continuous splash screen is enabled, handoff
will populate the controller and other structures after reading
hardware info. If there is a resolution switch, clear the
handoff data so that the data can be reconfigured with new
resolution info.

Change-Id: Ia524136283711e95879936603bb53c5e8f263ea6
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>

drivers/video/fbdev/msm/mdss_mdp_ctl.c

@@ -2417,6 +2417,7 @@ int mdss_mdp_ctl_splash_finish(struct mdss_mdp_ctl *ctl, bool handoff)
 	switch (ctl->panel_data->panel_info.type) {
 	case MIPI_VIDEO_PANEL:
 	case EDP_PANEL:
+	case DTV_PANEL:
 		return mdss_mdp_video_reconfigure_splash_done(ctl, handoff);
 	case MIPI_CMD_PANEL:
 		return mdss_mdp_cmd_reconfigure_splash_done(ctl, handoff);
@@ -3765,7 +3766,7 @@ int mdss_mdp_ctl_stop(struct mdss_mdp_ctl *ctl, int power_state)
 
 	pr_debug("ctl_num=%d, power_state=%d\n", ctl->num, ctl->power_state);
 
-	if (!mdss_mdp_ctl_is_power_on(ctl)) {
+	if (!ctl->mfd->panel_reconfig && !mdss_mdp_ctl_is_power_on(ctl)) {
 		pr_debug("%s %d already off!\n", __func__, __LINE__);
 		return 0;
 	}

drivers/video/fbdev/msm/mdss_mdp_intf_video.c

@@ -1172,7 +1172,12 @@ int mdss_mdp_video_reconfigure_splash_done(struct mdss_mdp_ctl *ctl,
 	int i, ret = 0, off;
 	u32 data, flush;
 	struct mdss_mdp_video_ctx *ctx;
-	struct mdss_mdp_ctl *sctl = mdss_mdp_get_split_ctl(ctl);
+	struct mdss_mdp_ctl *sctl;
+
+	if (!ctl) {
+		pr_err("invalid ctl\n");
+		return -ENODEV;
+	}
 
 	off = 0;
 	ctx = (struct mdss_mdp_video_ctx *) ctl->intf_ctx[MASTER_CTX];
@@ -1182,8 +1187,14 @@ int mdss_mdp_video_reconfigure_splash_done(struct mdss_mdp_ctl *ctl,
 	}
 
 	pdata = ctl->panel_data;
+	if (!pdata) {
+		pr_err("invalid pdata\n");
+		return -ENODEV;
+	}
 
 	pdata->panel_info.cont_splash_enabled = 0;
+	sctl = mdss_mdp_get_split_ctl(ctl);
+
 	if (sctl)
 		sctl->panel_data->panel_info.cont_splash_enabled = 0;
 	else if (ctl->panel_data->next && is_pingpong_split(ctl->mfd))

drivers/video/fbdev/msm/mdss_mdp_overlay.c

@@ -4605,6 +4605,46 @@ end:
 	return rc;
 }
 
+static int mdss_mdp_handoff_cleanup_ctl(struct msm_fb_data_type *mfd)
+{
+	int rc;
+	int need_cleanup;
+	struct mdss_overlay_private *mdp5_data;
+
+	if (!mfd)
+		return -ENODEV;
+
+	if (mfd->key != MFD_KEY)
+		return -EINVAL;
+
+	mdp5_data = mfd_to_mdp5_data(mfd);
+
+	mdss_mdp_overlay_free_fb_pipe(mfd);
+
+	mutex_lock(&mdp5_data->list_lock);
+	need_cleanup = !list_empty(&mdp5_data->pipes_cleanup) ||
+		!list_empty(&mdp5_data->pipes_used);
+	mutex_unlock(&mdp5_data->list_lock);
+
+	if (need_cleanup)
+		mdss_mdp_overlay_kickoff(mfd, NULL);
+
+	rc = mdss_mdp_ctl_stop(mdp5_data->ctl, mfd->panel_power_state);
+	if (!rc) {
+		if (mdss_fb_is_power_off(mfd)) {
+			mutex_lock(&mdp5_data->list_lock);
+			__mdss_mdp_overlay_free_list_purge(mfd);
+			mutex_unlock(&mdp5_data->list_lock);
+		}
+	}
+
+	rc = mdss_mdp_splash_cleanup(mfd, false);
+	if (rc)
+		pr_err("%s: failed splash clean up %d\n", __func__, rc);
+
+	return rc;
+}
+
 static int mdss_mdp_overlay_off(struct msm_fb_data_type *mfd)
 {
 	int rc;
@@ -4627,6 +4667,9 @@ static int mdss_mdp_overlay_off(struct msm_fb_data_type *mfd)
 
 	if (!mdss_mdp_ctl_is_power_on(mdp5_data->ctl)) {
 		if (mfd->panel_reconfig) {
+			if (mfd->panel_info->cont_splash_enabled)
+				mdss_mdp_handoff_cleanup_ctl(mfd);
+
 			mdp5_data->borderfill_enable = false;
 			mdss_mdp_ctl_destroy(mdp5_data->ctl);
 			mdp5_data->ctl = NULL;