I controlled the USB1_EN_OC# pin by referring to the previous Can I controlled USB1_EN_OC# pin? forum content.
However, as in the error at USB Power Control,
usb usb1-port2: over-current condition error occurs, and USB freezing occurs.
So I removed the following 3 lines from the source as the forum told me, and no more over-current condition errors occurred.
reg = padctl_readl(padctl, XUSB_PADCTL_VBUS_OC_MAP);
reg |= VBUS_ENABLE(pin);
padctl_writel(padctl, reg, XUSB_PADCTL_VBUS_OC_MAP);
I have some questions.
What is the role of the above 3 lines?
I usually want to enable the above 3 lines, disable it only when controlling USB1_EN_OC#, and then enable it again after the control is over. Is it possible?
(When I tried using otg_vbus node, it didn’t work, is there another way?)
If it is impossible, what is the reason?
Currently, I am using ubuntu 16.04 for the TX2 OS.
Rumor has it that there is no infinite over-current condition error in ubuntu 18.04, can’t it be fixed in 16.04?