linux-kernel - Re: [PATCH 0/2] reboot-mode: Expose sysfs for registered reboot modes

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Message-ID: <b706ecd5-a564-35d7-9a02-8da9cd134b24@oss.qualcomm.com>
Date: Tue, 18 Nov 2025 19:50:29 +0530
From: Shivendra Pratap <shivendra.pratap@....qualcomm.com>
To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Cc: Sebastian Reichel <sre@...nel.org>,
        Bjorn Andersson
 <andersson@...nel.org>, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.com>
Subject: Re: [PATCH 0/2] reboot-mode: Expose sysfs for registered reboot modes



On 11/18/2025 3:30 PM, Bartosz Golaszewski wrote:
> On Mon, 17 Nov 2025 at 19:05, Shivendra Pratap
> <shivendra.pratap@....qualcomm.com> wrote:
>>
>>
>>
>> On 11/17/2025 6:33 PM, Bartosz Golaszewski wrote:
>>> On Sun, 16 Nov 2025 at 16:20, Shivendra Pratap
>>> <shivendra.pratap@....qualcomm.com> wrote:
>>>>
>>>> The reboot-mode framework provides infrastructure for drivers that want
>>>> to implement a userspace reboot command interface. However, there is
>>>> currently no standardized way for userspace to discover the list of
>>>> supported commands at runtime. This series introduces a sysfs interface
>>>> in the reboot-mode framework to expose the list of supported reboot-mode
>>>> commands to userspace. This will enable userspace tools to query
>>>> available reboot modes using the sysfs interface.
>>>>
>>>> Example:
>>>>   cat /sys/class/reboot-mode/<driver-name>/reboot_modes
>>>>
>>>> The series consists of two patches:
>>>>   1. power: reset: reboot-mode: Expose sysfs for registered reboot_modes
>>>>   2. Documentation: ABI: Add sysfs-class-reboot-mode-reboot_modes
>>>>
>>>> These patches were previously being reviewed as part of “vendor resets
>>>> for PSCI SYSTEM_RESET2”, until v17. Following the suggestions from
>>>> Bjorn, the reboot-mode sysfs patches have been split into a separate
>>>> series here, for focused discussions and better alignment.
>>>>
>>>> Previous discussion on these patches:
>>>> https://lore.kernel.org/all/20251109-arm-psci-system_reset2-vendor-reboots-v17-5-46e085bca4cc@oss.qualcomm.com/
>>>> https://lore.kernel.org/all/20251109-arm-psci-system_reset2-vendor-reboots-v17-4-46e085bca4cc@oss.qualcomm.com/
>>>>
>>>
>>> When doing a split like this, please keep the versioning going. This
>>> should be v18.
>>
>> Focus of that original series was "Implementing vendor resets for PSCI SYSTEM_RESET2".
>> These two patches have been split out of that series. The original series will
>> still continue to its next version(v18) after addressing all other reviews.
>> So i thought that these two patches can be split out to v1?
>>
> 
> No, they both continue at v18 so that the origin of this smaller
> series is contained.

sure. I will resend this patch as v18, taking care of current comments
as-well.

thanks,
Shivendra