Hi, On Sun, Nov 29, 2020 at 01:51:54AM +0200, Aaro Koskinen wrote: > I tried to upgrade my OMAP1 OSK board to v5.9, but the rootfs cannot > be accessed anymore due to broken USB. It fails to probe with the > following logs: > > [ 9.219940] ohci ohci: cannot find GPIO chip i2c-tps65010, deferring > [ 9.250366] ohci ohci: cannot find GPIO chip i2c-tps65010, deferring > [ 9.731445] ohci ohci: cannot find GPIO chip i2c-tps65010, deferring > [ 10.342102] ohci ohci: cannot find GPIO chip i2c-tps65010, deferring > [ 10.966430] ohci ohci: cannot find GPIO chip i2c-tps65010, deferring > > Bisected to: > > commit 15d157e874437e381643c37a10922388d6e55b29 > Author: Linus Walleij <linus.walleij@xxxxxxxxxx> > Date: Mon Jul 20 15:55:24 2020 +0200 > > usb: ohci-omap: Convert to use GPIO descriptors > > I suspect one of the issues is the name "i2c-tps65010" vs "tps65010": > > # cat /sys/devices/platform/omap_i2c.1/i2c-1/i2c-tps65010/gpio/gpiochip208/label > tps65010 > > However changing that in the lookup table still doesn't help much; I got rid > of the "deferring" message but the USB still doesn't work. So far the only > workaround I have is to revert the whole commit. GPIO numbering goes wrong... It's now trying to poke GPIO2. Also gpiod_set_value_cansleep() probably should be used as tps65010 can sleep. A.
