On Tue, 12 Dec 2023 08:58:31 -0600 Adam Ford <aford173@xxxxxxxxx> wrote: > I have been troubleshooting an issue with USB which appears to happen > with AM3517, OMAP3530, and DM3730 in which the USB doesn't detect > removal or connection of USB devices and interrupts stop occurring. > > In every case, I have the OMAP3 EHCI connected to a USB3220 > transceiver which is treated as configured in the device tree as > usb-nop-xceiv with reset-gpios configured to enable it. > Also issues on GTA04 (DM3730): The modem is behind it. There is an errata for that combination. Somehow reset/turning off does not work really. On GTA04 we have issues with current consumption during suspend. including scenarios where there is a mismatch between state of phy and what the omap side the state is. What we do: enable off-mode and force-reset of both sides. and have this hack to solve at least the suspend issues: https://lore.kernel.org/linux-omap/20180216171414.8097-1-andreas@xxxxxxxxxxxx/ Regards, Andreas
