drm/omap: panel-sharp-ls037v7dw01: Add note for incorrect data drive edge

According to the datasheet of the panel, both data, DEN and sync signals
are expected to be driven on the falling edge of the DOTCLK.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/displays/panel-sharp-ls037v7dw01.c

@@ -52,6 +52,10 @@ static const struct videomode sharp_ls_vm = {
 	.flags		= DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
 			  DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_SYNC_NEGEDGE |
 			  DISPLAY_FLAGS_PIXDATA_POSEDGE,
+	/*
+	 * Note: According to the panel documentation:
+	 * DATA needs to be driven on the FALLING edge
+	 */
 };
 
 #define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)