Re: [PATCH] watchdog: s3c2410_wdt: Only register for cpufreq onCPU_FREQ_S3C24XX

From: Ben Dooks
Date: Mon Nov 25 2013 - 19:28:15 EST


On Mon, Nov 25, 2013 at 02:55:37PM -0800, Doug Anderson wrote:
> On modern SoCs the watchdog timer is parented on a clock that doesn't
> change every time we have a cpufreq change. That means we don't need
> to constantly adjust the watchdog timer, so avoid registering for and
> dealing with cpufreq transitions unless we've actually got
> CPU_FREQ_S3C24XX defined.

The S3C2410 to at-least S3C2440 there is only one PLL/clock-divider
set so changing any part of that can change frequency supplied to
the watchdog.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/