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From: Mark Brown <broonie@kernel.org>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>,
	Baolin Wang <baolin.wang@linaro.org>,
	linux-i2c@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: I2C PM overhaul needed? (Re: [PATCH 1/2] i2c: sprd: Prevent i2c accesses after suspend is called)
Date: Wed, 9 May 2018 17:18:48 +0900	[thread overview]
Message-ID: <20180509081848.GO13402@sirena.org.uk> (raw)
In-Reply-To: <20180505083255.7gv3bcjxx3b6nzeb@ninjato>

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On Sat, May 05, 2018 at 10:32:55AM +0200, Wolfram Sang wrote:

> > OTOH it does mean we might not notice things happening later than they
> > should so it's not 100% clear...

> What do you mean here?

If someone is doing I/O later than they should currently we'll notice as
they try to do something that needs interrupts with interrupts disabled.
With transparent noirq then it'll just work on some percentage of
systems with controllers that support that but fail on others.  That may
or may not be what we want but it's worth considering.

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  reply	other threads:[~2018-05-09  8:18 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-09  6:40 [PATCH 1/2] i2c: sprd: Prevent i2c accesses after suspend is called Baolin Wang
2018-04-09  6:40 ` [PATCH 2/2] i2c: sprd: Fix the i2c count issue Baolin Wang
2018-04-27 12:14   ` Wolfram Sang
2018-04-09 20:56 ` [PATCH 1/2] i2c: sprd: Prevent i2c accesses after suspend is called Grygorii Strashko
2018-04-10  8:08   ` Baolin Wang
2018-04-27 12:14 ` Wolfram Sang
2018-05-02  3:27   ` Baolin Wang
2018-05-02  5:23     ` Wolfram Sang
2018-05-02  5:48       ` Baolin Wang
2018-05-03 16:26         ` Grygorii Strashko
2018-05-04 12:24           ` I2C PM overhaul needed? (Re: [PATCH 1/2] i2c: sprd: Prevent i2c accesses after suspend is called) Wolfram Sang
2018-05-05  1:54             ` Mark Brown
2018-05-05  8:32               ` Wolfram Sang
2018-05-09  8:18                 ` Mark Brown [this message]
2018-05-07 17:48             ` Grygorii Strashko
2018-05-08 16:32               ` Wolfram Sang
2018-05-08 18:31                 ` Peter Rosin
2018-05-11 15:14                 ` Grygorii Strashko

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