On 5 December 2017 at 04:23, Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote: > Hi, > >> From: Ulf Hansson, Sent: Monday, December 4, 2017 7:41 PM >> >> On 1 December 2017 at 12:03, Yoshihiro Shimoda >> <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote: > <snip> >> > Sure! I tested your patch, and then the following message disappeared! >> > >> > Enabling runtime PM for inactive device (ee080200.usb-phy) with active children >> >> Great, that confirms my theory. >> >> I will re-work the patch and re-post it to see what people thinks about it. > > Thank you! > >> > >> > However, the following message still exists. >> > >> > Enabling runtime PM for inactive device (ee080000.usb) with active children >> > >> > So, I guess ohci-platform.c also has similar issue. >> >> Yes, very likely! >> >> However, I need some more time to look into this to be able to suggest >> a solution. > > I found a solution and sent a report as below: > https://www.mail-archive.com/linux-kernel@xxxxxxxxxxxxxxx/msg1551146.html > > What do you think about using pm_runtime_forbid()? As both Alan and Rafael pointed out in their replies, this is not the right solution. However, what is indeed interesting is how it can silence the error messages. I keep this is mind while later moving forward. Kind regards Uffe
