[U-Boot] [PATCH v3 01/11] dm: serial: Update binding for PL01x serial UART

Stephen Warren
2015-08-13T16:02:58Z

On 08/13/2015 09:59 AM, Simon Glass wrote:
> Hi Linus,
>
> On 11 August 2015 at 07:00, Linus Walleij <linus.walleij@linaro.org> wrote:
>> On Fri, Aug 7, 2015 at 3:42 PM, Simon Glass <sjg@chromium.org> wrote:
>>
>>> This binding differs from that of Linux. Update it and change existing
>>> users.
>>>
>>> Signed-off-by: Simon Glass <sjg@chromium.org>
>> (...)
>>> doc/device-tree-bindings/serial/pl01x.txt | 55 ++++++++++++++++++++++++++++---
>>
>> So why does U-Boot have its own copy of any bindings at all?
>>
>> This is forking the ontology of who gets to define bindings I fear.
>> It's a bit like have two bibles both claiming to be the word of god.
>> (OK maybe a hyperbolic statement, but you see what I mean.)
>>
>> Can't we just have the bindings in the Linux kernel tree please?
>
> Is there any plan to move them out of Linux and put them in a separate place?
>
> We should make an effort to sync the device tree files with Linux periodically.
>
> I quite like having the bindings in U-Boot since it makes people think
> about what they are adding. Are you worried that the bindings in
> U-Boot might evolve separately? Certainly there has been some of that.
>
> However I recently sent a series to add a few things for Raspberry Pi
> ("arm: rpi: Device tree modifications for U-Boot") and I don't yet see
> a willingness to add what some see as 'U-Boot things' to the binding.
> How do we address that?

DT isn't supposed to contain "U-Boot things", but "an OS-agnostic
description of the hardware". So, I imagine the solution is not to
attempt to do that:-)