Refer to Table 37-6. IPU1 External Signals in IMX6DQRM(Rev.2) [p.2748].
Direction of IPU1_DISP0_DATA00 is "IO".
For example, when one select the MUX_MODE = 000 (ALT0— Select signal IPU1_DISP0_DATA00) in IOMUXC_SW_MUX_CTL_PAD_DISP0_DATA00 at u-boot, which initial direction is it input or output?
I'd like to know the other "IO" signals, too.