disp: msm: dp: perform mst phy operations during suspend resume

Perform mst phy operations during suspend/resume
to allow sinks to be in a correct state. A usbpd
api must also be called before and after the phy
operations to allow the system to go into deep
suspend and resume in a timely manner.

CRs-Fixed: 2363921
Change-Id: Ie21ef9b1caf2044e598466373a6059d2a1e5e58c
Signed-off-by: Fuad Hossain <fhossain@codeaurora.org>

msm/dp/dp_display.h

@@ -117,6 +117,8 @@ struct dp_display {
 			struct dp_display_mode *dp_mode);
 	int (*update_pps)(struct dp_display *dp_display,
 			struct drm_connector *connector, char *pps_cmd);
+	void (*wakeup_phy_layer)(struct dp_display *dp_display,
+			bool wakeup);
 };
 
 #ifdef CONFIG_DRM_MSM_DP