[PATCH v4] watchdog: stm32_iwdg: Add pretimeout support

[Marek Vasut]

On 9/5/24 3:12 PM, Marek Vasut wrote:
> On 6/23/24 8:18 PM, Marek Vasut wrote:
>> On 4/15/24 3:48 PM, Marek Vasut wrote:
>>> The STM32MP15xx IWDG adds registers which permit this IP to generate
>>> pretimeout interrupt. This interrupt can also be used to wake the CPU
>>> from suspend. Implement support for generating this interrupt and let
>>> userspace configure the pretimeout. In case the pretimeout is not
>>> configured by user, set pretimeout to 3/4 of the WDT timeout cycle.
>>>
>>> Reviewed-by: Clément Le Goffic <clement.legoffic at foss.st.com>
>>> Tested-by: Clément Le Goffic <clement.legoffic at foss.st.com>
>>> Signed-off-by: Marek Vasut <marex at denx.de>
>>> ---
>>> Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
>>> Cc: Guenter Roeck <linux at roeck-us.net>
>>> Cc: Maxime Coquelin <mcoquelin.stm32 at gmail.com>
>>> Cc: Wim Van Sebroeck <wim at linux-watchdog.org>
>>> Cc: linux-arm-kernel at lists.infradead.org
>>> Cc: linux-stm32 at st-md-mailman.stormreply.com
>>> Cc: linux-watchdog at vger.kernel.org
>>> ---
>>> V2: - Subtract the pretimeout value from timeout value before writing it
>>>        into the IWDG pretimeout register, because the watchdog counter
>>>        register is counting down, and the pretimeout interrupt triggers
>>>        when watchdog counter register matches the pretimeout register
>>>        content.
>>>      - Set default pretimeout to 3/4 of timeout .
>>> V3: - Use dev instead of pdev->dev
>>>      - Swap order of ret/return 0
>>>      - Split this from the DT changes, which are orthogonal
>>>      - Uh, this patch got stuck in upstreaming queue, sorry
>>> V4: - Update commit message to match V2 default pretimeout to 3/4
>>>      - Add RB/TB from Clément
>>
>> Hi,
>>
>> Are there still any open topics with this patch ?
> 
> Anything ?

Can this be pulled via the stm32 SoC tree ?