On 07.06.22 13:58, Eric Schikschneit wrote: > I am limited by the availability of the preempt-rt kernels that are > available on the yocto project. The newest kernel I see listed is > 5.15.44 on: https://git.yoctoproject.org/linux-yocto/ Well, it's up to Russel if that is enough for him, as he authored c859e0d479b3 ("gpio: omap: ensure irq is enabled before wakeup") and thus should look into this regression. Ciao, Thorsten > From: Thorsten Leemhuis <regressions@xxxxxxxxxxxxx> > Sent: Tuesday, June 7, 2022 5:07 AM > To: Eric Schikschneit <eric.schikschneit@xxxxxxxxxxxxxxxxxxxxxx>; stable@xxxxxxxxxxxxxxx <stable@xxxxxxxxxxxxxxx> > Cc: regressions@xxxxxxxxxxxxxxx <regressions@xxxxxxxxxxxxxxx>; rmk+kernel@xxxxxxxxxxxxxxx <rmk+kernel@xxxxxxxxxxxxxxx>; grygorii.strashko@xxxxxx <grygorii.strashko@xxxxxx>; tony@xxxxxxxxxxx <tony@xxxxxxxxxxx>; linus.walleij@xxxxxxxxxx <linus.walleij@xxxxxxxxxx> > Subject: Re: [REGRESSION] gpio: omap: ensure irq is enabled before wakeup > > Hi, this is your Linux kernel regression tracker. > > On 01.06.22 17:56, Eric Schikschneit wrote: >> Summary: OMAP patch causes SPI bus transaction failure on TI CPU >> Commit: c859e0d479b3b4f6132fc12637c51e01492f31f6 Kernel version: >> 5.10.87 >> >> The detailed description: >> >> I know this is a old commit at this point, > > That shouldn't be a problem at all, but it raises one question that > would be good to get answered: does this problem still occur with the > latest code? This issue for example might have been fixed in between, > but maybe the fix was to complex to get backported or something like > that. Hence it would be ideal if you could quickly give 5.19-rc1 a shot; > 5.18.y is not ideal, but will do as well. > >> but we have observed a >> regression caused by this commit. It causes improper toggle during a >> SPI transaction with a microcontroller. The CPU in use is Texas >> Instruments AM3352BZCZA80. The microcontroller in use is a PIC based >> micro. I have logic capture images available to show the signal >> difference that is causing confusion on the SPI bus. > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > > P.S.: As the Linux kernel's regression tracker I deal with a lot of > reports and sometimes miss something important when writing mails like > this. If that's the case here, don't hesitate to tell me in a public > reply, it's in everyone's interest to set the public record straight.
