Re: [PATCH v2 02/13] ACPICA: Read LVR from the I2C resource descriptor

Akhil R
2026-04-11T05:41:32Z

On Fri, 10 Apr 2026 12:59:06 +0200, Rafael J. Wysocki wrote:
> On Fri, Apr 10, 2026 at 6:45 AM Akhil R <akhilrajeev@nvidia.com> wrote:
>>
>> On Thu, 9 Apr 2026 22:04:05 -0400, Frank Li wrote:
>>> On Thu, Apr 09, 2026 at 04:27:32PM +0530, Akhil R wrote:
>>>> ACPI 6.3 specifies byte 8 of I2C Serial Bus Connection descriptor to be
>>>> used for Legacy Virtual Register (LVR) data as specified in the MIPI
>>>> I3C Specification for an I2C device connected to an I3C Host Controller.
>>>> LVR will be read by I3C host controller drivers and it provides details
>>>> about the specific speed and 50ns spike filter capabilities of I2C
>>>> devices.
>>>>
>>>> Update the rsconvert_info to include this field. For I2C devices on an
>>>> I2C bus, this field is Reserved and unused.
>>>>
>>>> This commit is the result of squashing the following:
>>>> ACPICA commit 70082dc8fc847673ac7f4bbb1541776730f0b63e
>>>> ACPICA commit e62e74baf7e08cf059ec82049aeccd565b24d661
>>>> ACPICA commit c404118235108012cad396c834b5aabe2dd1b51a
>>>> ACPICA commit 7650d4a889ea7907060bfce89f4f780ce83e7b28
>>>> ACPICA commit 014fa9f2dbcc6b1bd42a4a4a6f6705d9cf7d460b
>>>
>>> These commit number is not existed at linus official tree. Please remove it.
>>
>> These are commits from ACPI-CA github. The files in the acpica folder is
>> a mirror of that repo. I suppose the commits in this folder are expected
>> to be structured like this. The process is also described here -
>> https://docs.kernel.org/driver-api/acpi/linuxized-acpica.html
>
> While the above is correct overall, it would also be sufficient to use
> Link: tags pointing to those commits.

Ack. I will drop the commit IDs in the next version.

Best Regards,
Akhil