From: Ben Hutchings <ben.hutchings-4yDnlxn2s6sWdaTGBSpHTA@public.gmane.org>
To: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
Cc: tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org,
bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org,
nm-l0cyMroinI0@public.gmane.org,
grygorii.strashko-l0cyMroinI0@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] ARM: dts: dra7xx: Fix compatible string for PCF8575 chip
Date: Wed, 04 May 2016 19:23:23 +0100 [thread overview]
Message-ID: <1462386203.2360.12.camel@codethink.co.uk> (raw)
In-Reply-To: <1461588834-20908-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
On Mon, 2016-04-25 at 15:53 +0300, Roger Quadros wrote:
> The boards use a TI variant of the PCF8575 so specify that
> in the compatible string.
>
> Signed-off-by: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
[...]
1. This compatible string is still not documented (AFAIK).
2. As I understand it, TI is a second source for this NXP-designed chip,
i.e. it manufactures chips with identical logic (not clones) under
license. They should not be distinguishable in software.
3. For the same reason, there is no guarantee that the board
manufacturer won't populate boards with PCF8575 chips from the other
source in future.
Ben.
--
Ben Hutchings
Software Developer, Codethink Ltd.
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next prev parent reply other threads:[~2016-05-04 18:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-25 12:53 [PATCH] ARM: dts: dra7xx: Fix compatible string for PCF8575 chip Roger Quadros
[not found] ` <1461588834-20908-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2016-04-26 17:09 ` Tony Lindgren
2016-05-04 18:23 ` Ben Hutchings [this message]
[not found] ` <1462386203.2360.12.camel-4yDnlxn2s6sWdaTGBSpHTA@public.gmane.org>
2016-05-09 6:49 ` Sebastian Andrzej Siewior
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