drm/i915/dsi: Add cmd mode flags in display mode private flags

Adding TE flags and periodic command mode flags
as part of private flags to indicate what TE interrupts
we would be getting instead of vblanks in case of mipi dsi
command mode.

v2: Add TE flag description (Jani)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200312053841.2794-4-vandita.kulkarni@intel.com

drivers/gpu/drm/i915/display/intel_display_types.h

@@ -640,6 +640,16 @@ struct intel_crtc_scaler_state {
 #define I915_MODE_FLAG_GET_SCANLINE_FROM_TIMESTAMP (1<<1)
 /* Flag to use the scanline counter instead of the pixel counter */
 #define I915_MODE_FLAG_USE_SCANLINE_COUNTER (1<<2)
+/*
+ * TE0 or TE1 flag is set if the crtc has a DSI encoder which
+ * is operating in command mode.
+ * Flag to use TE from DSI0 instead of VBI in command mode
+ */
+#define I915_MODE_FLAG_DSI_USE_TE0 (1<<3)
+/* Flag to use TE from DSI1 instead of VBI in command mode */
+#define I915_MODE_FLAG_DSI_USE_TE1 (1<<4)
+/* Flag to indicate mipi dsi periodic command mode where we do not get TE */
+#define I915_MODE_FLAG_DSI_PERIODIC_CMD_MODE (1<<5)
 
 struct intel_wm_level {
 	bool enable;