linux-kernel - Re: [PATCH 0/8] ARM: sun8i: a33: Mali improvements

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Message-ID: <20170217215611.2ft4rpnukbijcgqn@localhost>
Date:   Fri, 17 Feb 2017 22:56:11 +0100
From:   Rask Ingemann Lambertsen <rask@...melder.dk>
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:     Emil Velikov <emil.l.velikov@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        devicetree <devicetree@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-mm@...ck.org, Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        LAKML <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 0/8] ARM: sun8i: a33: Mali improvements

On Fri, Feb 17, 2017 at 04:44:19PM +0100, Maxime Ripard wrote:
[...]
> We already have DT bindings for out of tree drivers, there's really
> nothing new here.

We have DT bindings for *hardware*, not for drivers. As stated in
Documentation/devicetree/usage-model.txt:

"The "Open Firmware Device Tree", or simply Device Tree (DT), is a data
structure and language for describing hardware.  More specifically, it
is a description of hardware that is readable by an operating system
so that the operating system doesn't need to hard code details of the
machine."

"2.1 High Level View
-------------------
The most important thing to understand is that the DT is simply a data
structure that describes the hardware."

-- 
Rask Ingemann Lambertsen