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    SubjectRe: [PATCH 00/12] of: overlay: clean up device tree overlay code
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    Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

    On 04/10/17 17:56, Rob Herring wrote:
    > On Mon, Oct 2, 2017 at 10:53 PM, <frowand.list@gmail.com> wrote:
    >> From: Frank Rowand <frank.rowand@sony.com>
    >>
    >> I have found the device tree overlay code to be difficult to read and
    >> maintain. This patch series attempts to improve that situation.
    >>
    >> The cleanup includes some changes visible to users of overlays. The
    >> only in kernel user of overlays is fixed up for those changes. The
    >> in kernel user is:
    >>
    >> drivers/gpu/drm/tilcdc/tilcdc_slave_compat.c
    >
    > At what point can we remove this? I'm assuming at some point users
    > will need to update their dtb's for other reasons and this becomes
    > obsolete.

    To be honest, I have no idea, or how to find that out.

    Do we need to get rid of it? Afaik, we haven't do much (or any?)
    maintenance on tilcdc_slave_compat.c since it was written, so from our
    perspective it's been a minimal burden. Is it creating burden for others?

    Is the approach done with tilcdc_slave_compat.c something that's not
    recommended? I'm sure similar situations happen with other drivers too,
    and I think it's a good idea to have a recommended way of keeping
    compatibility.

    Tomi

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