lkml.org 
[lkml]   [2022]   [Oct]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 0/3] Suspending i.MX watchdog in WAIT mode
From


On 20. 10. 22 14:04, Krzysztof Kozlowski wrote:
> On 20/10/2022 01:49, Andrej Picej wrote:
>> Hi Krzysztof,
>>
>> On 19. 10. 22 17:46, Krzysztof Kozlowski wrote:
>>> On 19/10/2022 07:17, Andrej Picej wrote:
>>>> The i.MX6 watchdog can't be stopped once started. This means that
>>>> special hardware suspend needs to be configured when the device enters
>>>> low-power modes.
>>>> Usually i.MX devices have two bits which deal with this:
>>>> - WDZST bit disables the timer in "deeper" low power modes and
>>>> - WDW bit disables the timer in "WAIT" mode which corresponds with
>>>> Linux's "freeze" low-power mode.
>>>>
>>>> WDZST bit support is already in place since 1a9c5efa576e ("watchdog: imx2_wdt: disable watchdog timer during low power mode").
>>>> WDW bit is not common for all imx2-wdt supported devices, therefore use
>>>> a new device-tree property "fsl,suspend-in-wait" which suspends the
>>>> watchdog in "WAIT" mode.
>>>>
>>>> Andrej Picej (3):
>>>> watchdog: imx2_wdg: suspend watchdog in WAIT mode
>>>> dt-bindings: watchdog: fsl-imx: document suspend in wait mode
>>>> ARM: dts: imx6ul/ull: suspend i.MX6UL watchdog in wait mode
>>>>
>>>> .../devicetree/bindings/watchdog/fsl-imx-wdt.yaml | 5 +++++
>>>
>>> Please use scripts/get_maintainers.pl to get a list of necessary people
>>> and lists to CC. It might happen, that command when run on an older
>>> kernel, gives you outdated entries. Therefore please be sure you base
>>> your patches on recent Linux kernel.
>>
>> I thought I did. I run that script on linux-watchdog.git, master branch.
>> I thought I should base my patches meant for watchdog subsystem there?
>
> Maintainer's tree should be fine, but then the issue is somewhere else,
> because your CC list was not complete.
>

Ok I see that two email addresses were not added. Sorry for that. I will
make sure that the CC list is complete next time.

Thanks,
Andrej

\
 
 \ /
  Last update: 2022-10-20 14:17    [W:0.079 / U:2.328 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site