[PATCH v2] ARM: shmobile: kzm9g dts: Use adxl345-specific compatible property

Geert Uytterhoeven
2015-08-13T09:26:32Z

Hi Simon,

On Thu, Aug 13, 2015 at 2:05 AM, Simon Horman <horms@verge.net.au> wrote:
> On Wed, Jul 08, 2015 at 09:51:49AM +0900, Simon Horman wrote:
>> On Tue, Jul 07, 2015 at 09:56:29AM +0300, Laurent Pinchart wrote:
>> > On Tuesday 07 July 2015 09:26:21 Simon Horman wrote:
>> > > On Mon, Jul 06, 2015 at 04:29:33PM +0300, Laurent Pinchart wrote:
>> > > > On Monday 06 July 2015 12:55:32 Geert Uytterhoeven wrote:
>> > > > > Replace the deprecated generic "adi,adxl34x" compatible value by the
>> > > > > adxl345-specific "adi,adxl345" value, cfr. commit e465bf6fc55d5ce2 ("DT:
>> > > > > i2c: Deprecate adi,adxl34x compatible string").
>> > > > >
>> > > > > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> > > >
>> > > > Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
>> > > >
>> > > > > ---
>> > > > > Depends on commit 3a38958d2477b718 ("Input: adxl34x - add OF match
>> > > > > support"), which is in v4.2-rc1.
>> > > > >
>> > > > > This is v2 of "ARM: shmobile: kzm9g dts: Add adxl345-specific compatible
>> > > > > property".
>> > >
>> > > It appears to me that this will cause a regression when booting old kernels
>> > > with new dts blobs. For that reason think we should consider v1
>> > > of this change coupled with a schedule to remove use of the deprecated
>> > > compat string.
>> >
>> > That's the forward compatibility that Geert mentioned, is that really an
>> > issue, especially on this board ?
>>
>> I think it would be best to provide backwards compatibility unless there
>> is a compelling reason not to.
>
> I would like to revisit this discussion with a view to getting some version
> of this patch queued up (yes I know I pushed back on it earlier in this thread).

I'm fine with applying v1.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds