linux-kernel - Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

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Message-ID: <b0f9d2d3-9029-1581-9330-807fab3b2d44@arm.com>
Date:   Tue, 27 Feb 2018 14:55:18 +0000
From:   Robin Murphy <robin.murphy@....com>
To:     jtoppins@...hat.com, Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     prarit@...hat.com, Jon Masters <jcm@...hat.com>,
        Bhupesh Sharma <bhsharma@...hat.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Will Deacon <will.deacon@....com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        astone@...hat.com, James Morse <james.morse@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Ingo Molnar <mingo@...nel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64/acpi: make ACPI boot preference configurable

On 27/02/18 14:28, Jonathan Toppins wrote:
>> 'only intended to be booted via ACPI' is a property of the system, not
>> of the OS. If you need this functionality for development, you can
>> append 'acpi=on' to the kernel command line via kconfig.
> 
> This is not for development this is for production rate shipping firmware.

Obvious question: if this is "production" firmware on systems which "do 
not support DT", what the hell is a non-trivial DT doing in there in the 
first place?

Robin.