Re: [PATCH 2/2] watchdog: pscrr: add watchdog pretimeout reason tracking

[Faruque Ansari <faruque.ansari@oss.qualcomm.com>]

Hi Guenter,

On 20-Jul-26 10:09 PM, Guenter Roeck wrote:
> On Tue, Jul 14, 2026 at 03:22:35PM +0530, Faruque Ansari wrote:
>> A watchdog pretimeout fires before the actual reset, giving the kernel
>> a brief window to record what happened.  Without this change that
>> window goes unused and the next boot sees PSCR_UNKNOWN, making it
>> impossible to tell a watchdog-driven reset from any other cause.
>>
>> Call set_psc_reason(PSCR_WATCHDOG_PRETIMEOUT) at the top of
>> watchdog_notify_pretimeout() so the reason is recorded as soon as the
>> pretimeout is signalled, before any governor action runs.
>>
>> Signed-off-by: Faruque Ansari <faruque.ansari@oss.qualcomm.com>
>> ---
>>   drivers/power/reset/pscrr.c            | 3 ++-
>>   drivers/watchdog/watchdog_pretimeout.c | 3 +++
>>   include/linux/power/power_on_reason.h  | 1 +
>>   include/linux/reboot.h                 | 1 +
>>   kernel/reboot.c                        | 1 +
> 
> This is a cross-subsystem change. As far as I can see it would
> be easy to split it into two patches. Please do that.
> 
> Guenter
> 

Thanks for taking the time to review this.
I'll split into separate PSCRR and watchdog patches in v2.

Thanks,
Faruque Ansari