sunxi: video: Add support for Hitachi tx18d42vm LVDS LCD panels

Add support for Hitachi tx18d42vm LVDS LCD panels, these panels have a
lcd controller which needs to be initialized over SPI, once that is
done they work like a regular LVDS panel.
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Acked-by: NAnatolij Gustschin <agust@denx.de>
Acked-by: NIan Campbell <ijc@hellion.org.uk>

board/sunxi/Kconfig

@@ -354,6 +354,13 @@ config VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828
 	---help---
 	 7.85" 768x1024 LCD panels, such as LG LP079X01 or AUO B079XAN01.0
 
+config VIDEO_LCD_PANEL_HITACHI_TX18D42VM
+	bool "Hitachi tx18d42vm LCD panel"
+	select VIDEO_LCD_HITACHI_TX18D42VM
+	select VIDEO_LCD_IF_LVDS
+	---help---
+	7.85" 1024x768 Hitachi tx18d42vm LCD panel support
+
 endchoice
 
 

drivers/video/sunxi_display.c

@@ -20,6 +20,7 @@
 #include <fdt_support.h>
 #include <video_fb.h>
 #include "videomodes.h"
+#include "hitachi_tx18d42vm_lcd.h"
 #include "ssd2828.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -1004,6 +1005,10 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode,
 		break;
 	case sunxi_monitor_lcd:
 		sunxi_lcdc_panel_enable();
+		if (IS_ENABLED(CONFIG_VIDEO_LCD_HITACHI_TX18D42VM)) {
+			mdelay(50); /* Wait for lcd controller power on */
+			hitachi_tx18d42vm_init();
+		}
 		sunxi_composer_mode_set(mode, address);
 		sunxi_lcdc_tcon0_mode_set(mode);
 		sunxi_composer_enable();