sunxi: video: Add support for tl059wv5c0 lcd panels

Add support for the 6" 480x800 tl059wv5c0 panel used on e.g. Utoo P66 and
Aigo M60/M608/M606 tablets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>

board/sunxi/Kconfig

@@ -406,6 +406,14 @@ config VIDEO_LCD_PANEL_HITACHI_TX18D42VM
 	---help---
 	7.85" 1024x768 Hitachi tx18d42vm LCD panel support
 
+config VIDEO_LCD_TL059WV5C0
+	bool "tl059wv5c0 LCD panel"
+	select VIDEO_LCD_PANEL_I2C
+	select VIDEO_LCD_IF_PARALLEL
+	---help---
+	6" 480x800 tl059wv5c0 panel support, as used on the Utoo P66 and
+	Aigo M60/M608/M606 tablets.
+
 endchoice
 
 

drivers/video/sunxi_display.c

@@ -18,6 +18,7 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <fdt_support.h>
+#include <i2c.h>
 #include <video_fb.h>
 #include "videomodes.h"
 #include "hitachi_tx18d42vm_lcd.h"
@@ -1030,6 +1031,12 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode,
 			mdelay(50); /* Wait for lcd controller power on */
 			hitachi_tx18d42vm_init();
 		}
+		if (IS_ENABLED(CONFIG_VIDEO_LCD_TL059WV5C0)) {
+			unsigned int orig_i2c_bus = i2c_get_bus_num();
+			i2c_set_bus_num(CONFIG_VIDEO_LCD_I2C_BUS);
+			i2c_reg_write(0x5c, 0x04, 0x42); /* Turn on the LCD */
+			i2c_set_bus_num(orig_i2c_bus);
+		}
 		sunxi_composer_mode_set(mode, address);
 		sunxi_lcdc_tcon0_mode_set(mode, false);
 		sunxi_composer_enable();