linux-kernel - Re: [PATCH RFC 1/2] ACPI/PPTT: Add acpi_pptt_get_package

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Date:   Thu, 30 Jan 2020 16:12:20 +0000
From:   John Garry <john.garry@...wei.com>
To:     Sudeep Holla <sudeep.holla@....com>
CC:     <rjw@...ysocki.net>, <lenb@...nel.org>, <jeremy.linton@....com>,
        <arnd@...db.de>, <olof@...om.net>, <linux-kernel@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>, <guohanjun@...wei.com>,
        <gregkh@...uxfoundation.org>
Subject: Re: [PATCH RFC 1/2] ACPI/PPTT: Add acpi_pptt_get_package_info() API

On 30/01/2020 11:23, Sudeep Holla wrote:
>> I personally would not prefer to add the support when I know it is getting
>> deprecated. I am not sure on kernel community policy on the same.
>>
> OK, the details on the proposal to deprecate can be now found in UEFI
> bugzilla [1]
> 

Wouldn't it be a better approach to propose deprecating the field when 
there is a readily available alternative, i.e. not a spec from a 
different body in beta stage?

To me, this new SMC support will take an appreciable amount of time to 
be implemented in FW by SiPs when actually released. And if it requires 
an ATF upgrade - which I guess it does - then that's a big job.

Thanks,
John

> --
> Regards,
> Sudeep
> 
> [1]https://bugzilla.tianocore.org/show_bug.cgi?id=2492
> .