disp: msm: sde: add allowed_dsc_reservation_switch capability

This change adds allowed_dsc_reservation_switch to determine if
dsc seamless switch is supported for DP. Also, based on the
flag, it determines and populates the required number of
available resources for DP.

Change-Id: I9cd7219a50d352369c5bc8386ce7dc25c30b80b6
Signed-off-by: Raviteja Tamatam <travitej@codeaurora.org>

msm/dsi/dsi_display.h

@@ -648,6 +648,14 @@ int dsi_dispaly_static_frame(struct dsi_display *display, bool enable);
  */
 struct drm_panel *dsi_display_get_drm_panel(struct dsi_display *display);
 
+/**
+ * dsi_display_has_dsc_switch_support() - check if dsc switch is supported.
+ * @display:            Handle to display.
+ *
+ * Return: True of panel supports both dsc and non-dsc modes.
+ */
+bool dsi_display_has_dsc_switch_support(struct dsi_display *display);
+
 /**
  * dsi_display_enable_event() - enable interrupt based connector event
  * @connector:          Pointer to drm connector structure