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Date: Thu, 26 Apr 2018 17:40:27 +0300
From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: John Garry <john.garry@huawei.com>
Cc: andriy.shevchenko@linux.intel.com, rjw@rjwysocki.net,
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        "Liguozhu (Kenneth)" <liguozhu@hisilicon.com>
Subject: Re: [RFC PATCH 1/2] ACPI / PNP: Don't add "enumeration_by_parent"
 devices
Message-ID: <20180426144027.GL2173@lahna.fi.intel.com>
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On Thu, Apr 26, 2018 at 03:23:17PM +0100, John Garry wrote:
> Not that I know about. Can you describe this method? I guess I also don't
> need to set the mfd_cell pnpid either for this special case device.

There is some documentation in "MFD devices" chapter of
Documentation/acpi/enumeration.txt at least.