drm: dsi: emit panel turn on/off signal to touchscreen

drivers/gpu/drm/msm/dsi/dsi_manager.c

@@ -7,6 +7,7 @@
 
 #include "msm_kms.h"
 #include "dsi.h"
+#include "drm/drm_notifier.h"
 
 #define DSI_CLOCK_MASTER	DSI_0
 #define DSI_CLOCK_SLAVE		DSI_1
@@ -273,6 +274,7 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
 	struct mipi_dsi_host *host = msm_dsi->host;
 	bool is_bonded_dsi = IS_BONDED_DSI();
 	int ret;
+	enum drm_notifier_data notifier_data;
 
 	DBG("id=%d", id);
 
@@ -286,6 +288,9 @@ static void dsi_mgr_bridge_pre_enable(struct drm_bridge *bridge)
 		return;
 	}
 
+	notifier_data = MI_DRM_BLANK_UNBLANK;
+	mi_drm_notifier_call_chain(MI_DRM_EVENT_BLANK, &notifier_data);
+
 	ret = msm_dsi_host_enable(host);
 	if (ret) {
 		pr_err("%s: enable host %d failed, %d\n", __func__, id, ret);
@@ -329,9 +334,13 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
 	struct mipi_dsi_host *host = msm_dsi->host;
 	bool is_bonded_dsi = IS_BONDED_DSI();
 	int ret;
+	enum drm_notifier_data notifier_data;
 
 	DBG("id=%d", id);
 
+	notifier_data = MI_DRM_BLANK_POWERDOWN;
+	mi_drm_notifier_call_chain(MI_DRM_EARLY_EVENT_BLANK, &notifier_data);
+
 	/*
 	 * Do nothing with the host if it is slave-DSI in case of bonded DSI.
 	 * It is safe to call dsi_mgr_phy_disable() here because a single PHY