On Wed, 23 Mar 2022, at 11:07 PM, Guenter Roeck wrote: > On 3/23/22 04:57, Alistair Francis wrote: > > The i.MX watchdog cannot be disabled by software once it has been > > enabled. This means that it can't be stopped before suspend. > > > > For systems that enter low power mode this is fine, as the watchdog will > > be automatically stopped by hardware in low power mode. Not all i.MX > > platforms support low power mode in the mainline kernel. For example the > > i.MX7D does not enter low power mode and so will be rebooted 2 minutes > > after entering sleep states. > > > > This patch introduces a device tree property "fsl,ping-during-suspend" > > that can be used to enable ping on suspend support for these systems. > > > > Signed-off-by: Alistair Francis <alistair@xxxxxxxxxxxxx> > > Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> > > What is the difference to earlier versions ? Sorry, I should have included a changelog. I just fixed the spelling of alow/allow in the title Alistair > > Guenter >
