[PATCH] watchdog: imxwd: Do not suspend in lpm on i.MX27

Sascha Hauer s.hauer at pengutronix.de
Wed May 15 23:09:18 PDT 2024


On Wed, 15 May 2024 13:01:56 +0200, Sascha Hauer wrote:
> The i.MX watchdog has two different configurable behaviours for low
> power modes.  The watchdog can either be suspended during low power
> modes or kept running.
> The useful behaviour is normally to disable it during low power modes to
> be able to suspend the system without having the watchdog resetting the
> system. This setting was introduced in the Kernel back in 2014 [1] and
> in barebox back in 2021 [2].
> On i.MX27 however this setting has the effect that the watchdog is
> suspended during normal cpu_do_idle(), so on an idle system it takes
> very long time until the watchdog triggers. This renders this setting
> useless, so disable it on i.MX27. This seems to be fixed on SoCs newer
> than i.MX35.
> 
> [...]

Applied, thanks!

[1/1] watchdog: imxwd: Do not suspend in lpm on i.MX27
      https://git.pengutronix.de/cgit/barebox/commit/?id=d5d01f156ee2 (link may not be stable)

Best regards,
-- 
Sascha Hauer <s.hauer at pengutronix.de>




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