Messages in this thread | | | Date | Wed, 23 Mar 2022 06:07:33 -0700 | Subject | Re: [PATCH v4] watchdog: imx2_wdg: Allow ping on suspend | From | Guenter Roeck <> |
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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@alistair23.me> > Reviewed-by: Guenter Roeck <linux@roeck-us.net>
What is the difference to earlier versions ?
Guenter
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