Re: [PATCH] clocksource/drivers/timer-ti-dm: Fix suspend and resume for am3 and am4
From: Tony Lindgren
Date: Mon Jul 20 2020 - 10:30:31 EST
* Carlos Hernandez <ceh@xxxxxx> [200717 21:35]:
> On 7/17/20 6:29 AM, Daniel Lezcano wrote:
> > On 13/07/2020 18:26, Tony Lindgren wrote:
> > > Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
> > > Reported-by: Carlos Hernandez <ceh@xxxxxx>
> > > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> > > ---
> > Carlos, were you able to test this patch ?
>
> Tested the patch on top of 5.8-rc5.
>
> cbdb2617290d (HEAD) clocksource/drivers/timer-ti-dm: Fix suspend and resume
> for am3 and am4
> 11ba468877bb (tag: v5.8-rc5) Linux 5.8-rc5
>
> It works on am335x-evm but fails on am437x-evm
Thanks for testing.
> am4:
>
> CCCCCCCC** 1196 printk messages dropped **
The above does not look normal..
> 44000000.ocp:L3 Custom Error: MASTER DSS TARGET GPMC (Read)
> ** 34 printk messages dropped **
..but the above points to the GPMC module failing to suspend.
This seems to be some other GPMC specific issue not related
to the system timers.
FYI, I have not seen the error above with am437x-sk-evm. But
then again, the sk-evm is probably not using GPMC.
Regards,
Tony