[PATCH] powerpc: remove WATCHDOG_RESET call from wait_ticks()
wd at denx.de
Tue Mar 17 11:02:49 CET 2020
In message <20200316212337.30204-1-rasmus.villemoes at prevas.dk> you wrote:
> wait_ticks() is only used by the ppc-specific __udelay()
> function. Having the powerpc version of __udelay implicitly call
> WATCHDOG_RESET() is inconsistent with other architectures' (and the
> generic __udelay() in lib/time.c) implementations. It also means a
> driver cannot use __udelay() as the raw primitive it is supposed to be
> - e.g. a watchdog driver that needs to do a short delay between two
> operations needed to perform a ping sequence.
Many PPC processors implement the watchdog differently than other
sysytems - for example, on many systems the watchdog is
automatically enabled after power on / reset.
> There are not that many __udelay() calls, so I doubt this causes a
> regression for anyone. Callers of udelay() are not affected, since
> udelay() itself does one WATCHDOG_RESET() per __udelay() call.
Which exact platforms have you tested this on?
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