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

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Message-ID: <20180227170518.56tvxkdh5fiochdd@lakrids.cambridge.arm.com>
Date:   Tue, 27 Feb 2018 17:05:19 +0000
From:   Mark Rutland <mark.rutland@....com>
To:     Jonathan Toppins <jtoppins@...hat.com>
Cc:     Bhupesh Sharma <bhsharma@...hat.com>,
        Prarit Bhargava <prarit@...hat.com>,
        Jonathan Masters <jcm@...hat.com>, rafael.j.wysocki@...el.com,
        Will Deacon <will.deacon@....com>,
        linux-kernel@...r.kernel.org, astone@...hat.com,
        James Morse <james.morse@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        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 Tue, Feb 27, 2018 at 09:44:09AM -0500, Jonathan Toppins wrote:
> For arm64 DT is suppose to *not* be the preferred method, 

This has never been the upstream position.

DT has been the default since day one, and changing this would be a
regression, as has been stated several times in the past.

If *the system vendor* intends that the system only uses ACPI, they
would not provide a DT.

If *you* prefer to use ACPI, feel free to alter your kernel command
line.

Thanks,
Mark.