/* Scroll up/down for the number of specified lines.  */
void ili9488_scroll(uint16_t ul_tfa, uint16_t ul_vsa, uint16_t ul_bfa)
/* Scroll up/down for the number of specified lines.  */
void ili9488_scroll(uint16_t ul_tfa, uint16_t ul_vsa, uint16_t ul_bfa)
{
	uint32_t cnt = 0;
	ili9488_color_t buf[6];
	cnt = sizeof(buf)/sizeof(ili9488_color_t);
	buf[0] = get_8b_to_16b(ul_tfa);
	buf[1] = get_0b_to_8b(ul_tfa);
	buf[2] = get_8b_to_16b(ul_vsa);
	buf[3] = get_0b_to_8b(ul_vsa);
	buf[4] = get_8b_to_16b(ul_bfa);
	buf[5] = get_0b_to_8b(ul_bfa);
	ili9488_write_register(ILI9488_CMD_VERT_SCROLL_DEFINITION, buf, cnt);
}