linux-kernel - Re: [PATCH RFC] ACPI: container: Add power domain control methods

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Message-ID: <CAJZ5v0hpYodc_fd1DtBM-VEmhxepq7eQcQkbDXvWn0uMQ_yGNA@mail.gmail.com>
Date:   Fri, 28 Oct 2022 19:07:16 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Zhang Zekun <zhangzekun11@...wei.com>
Cc:     lenb@...nel.org, rafael@...nel.org, patchwork@...wei.com,
        wangkefeng.wang@...wei.com, linux-acpi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] ACPI: container: Add power domain control methods

On Tue, Oct 25, 2022 at 8:17 AM Zhang Zekun <zhangzekun11@...wei.com> wrote:
>
> Platform devices which supports power control are often required to be
> power off/on together with the devices in the same power domain. However,
> there isn't a generic driver that support the power control logic of
> these devices.

Not true.

There is the ACPI power resources interface designed to represent
power domains that is well supported and used in the industry.

If it doesn't work for you, explain why.