drm/panel: simple: Allow DSI panels to provide mode flags

In order to differentiate between the different video modes (burst vs.
non-burst, sync pulses vs. sync events) supported by peripherals, pass
the flags that specify this mode in the panel description to the DSI
peripheral device when probed.

Signed-off-by: Thierry Reding <[e-mail]>

drivers/gpu/drm/panel/panel-simple.c

···
 struct panel_desc_dsi {
 	struct panel_desc desc;
 
+	unsigned long flags;
 	enum mipi_dsi_pixel_format format;
 	unsigned int lanes;
 };
···
 			.height = 136,
 		},
 	},
+	.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE,
 	.format = MIPI_DSI_FMT_RGB888,
 	.lanes = 4,
 };
···
 	if (err < 0)
 		return err;
 
+	dsi->mode_flags = desc->flags;
 	dsi->format = desc->format;
 	dsi->lanes = desc->lanes;