From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Johan Hovold <johan@kernel.org>, Andi Shyti <andi.shyti@kernel.org>
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i2c: core: document preference for i2c_get_adapter_by_fwnode()
Date: Fri, 9 Oct 2026 15:42:36 +0200 [thread overview]
Message-ID: <asjvTCazRMSNMojQ@shikoro> (raw)
In-Reply-To: <am5dvgXS09CA3ohj@shikoro>
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On Sat, Aug 01, 2026 at 10:57:34PM +0200, Wolfram Sang wrote:
> On Thu, Jul 16, 2026 at 03:30:29PM +0200, Johan Hovold wrote:
> > The i2c subsystem currently blocks during adapter deregistration
> > whenever there are consumers holding a reference.
> >
> > Document that i2c_get_adapter_by_fwnode(), which also takes a module
> > reference, should almost always be preferred over
> > i2c_find_adapter_by_fwnode() so that an attempt to unload the adapter
> > module while in use fails gracefully instead of blocking
> > uninterruptibly.
> >
> > Note that by implication of_get_i2c_adapter_by_node() is also generally
> > preferred over of_find_i2c_adapter_by_node().
> >
> > Signed-off-by: Johan Hovold <johan@kernel.org>
>
> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Andi, can we have that in 7.4 pretty please?
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next prev parent reply other threads:[~2026-10-09 13:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-16 13:30 [PATCH] i2c: core: document preference for i2c_get_adapter_by_fwnode() Johan Hovold
2026-08-01 20:57 ` Wolfram Sang
2026-10-01 13:03 ` Johan Hovold
2026-10-09 13:42 ` Wolfram Sang [this message]
2026-10-10 9:57 ` Andi Shyti
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