* Merlijn Wajer <merlijn@xxxxxxxxxx> [180221 10:17]: > Hi, > > On 15/02/18 13:08, Merlijn Wajer wrote: > > Hi, > > > > When trying to read musb status on r.15-rc6: > > > > cat > > /sys/devices/platform/68000000.ocp/480ab000.usb_otg_hs/musb-hdrc.0.auto/vbus > > > > This happens [1]. > > I am also seeing this on 4.14.19 on a different device - the Motorola > Droid 4. I'm pretty sure this didn't happen on 4.14-rc2, so perhaps > something broke later on in the release cycle? > > I will try to test it on a allwinner/sunxi a20 device tonight as well. > > I didn't see any relevant changes here, so I haven't tested the latest > rc yet: > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/usb/musb Maybe it's been broken for a long time now and nobody noticed? To me it seems this should be possible fix just by adding pm_runtime_get_sync and put calls to the vbus register reading function. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
