From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Hans de Goede <hdegoede@redhat.com>
Cc: Wolfram Sang <wsa@the-dreams.de>, Lukas Wunner <lukas@wunner.de>,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
linux-i2c@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 01/10] i2c: add suspended flag and accessors for i2c adapters
Date: Thu, 20 Dec 2018 22:09:37 +0100 [thread overview]
Message-ID: <2368540.q2jLLRDsj0@aspire.rjw.lan> (raw)
In-Reply-To: <e8bfcadc-7c1a-6659-7173-4ce484ceeca3@redhat.com>
On Thursday, December 20, 2018 11:00:29 AM CET Hans de Goede wrote:
> Hi,
>
> On 19-12-18 23:33, Wolfram Sang wrote:
> > Hi Lukas, Hans,
> >
> > On Wed, Dec 19, 2018 at 07:36:54PM +0100, Hans de Goede wrote:
> >> Hi,
> >>
> >> On 19-12-18 18:22, Lukas Wunner wrote:
> >>> On Wed, Dec 19, 2018 at 05:48:17PM +0100, Wolfram Sang wrote:
> >>>> +static inline void i2c_mark_adapter_suspended(struct i2c_adapter *adap)
> >>>> +{
> >>>> + i2c_lock_bus(adap, I2C_LOCK_ROOT_ADAPTER);
> >>>> + set_bit(I2C_ALF_IS_SUSPENDED, &adap->locked_flags);
> >>>> + i2c_unlock_bus(adap, I2C_LOCK_ROOT_ADAPTER);
> >>>> +}
> >>>
> >>> This looks like a duplication of the is_suspended flag in struct dev_pm_info.
> >>> Any reason why you can't use that? If so, it would be good to document the
> >>> reason in the commit message.
> >>
> >> Oh, that is a very good point and that one only gets set on system suspend
> >> and not on resume suspend, working around the problems with the i2c-designware
> >
> > Just to make it clear: you mean runtime suspend, not resume suspend, or?
>
> Yes I mean runtime-suspend, sorry.
The power.is_suspended flag is about system-wide suspend, however.
next prev parent reply other threads:[~2018-12-20 21:09 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-19 16:48 [PATCH 00/10] i2c: move handling of suspended adapters to the core Wolfram Sang
2018-12-19 16:48 ` [PATCH 01/10] i2c: add suspended flag and accessors for i2c adapters Wolfram Sang
2018-12-19 17:22 ` Lukas Wunner
2018-12-19 18:36 ` Hans de Goede
2018-12-19 22:33 ` Wolfram Sang
2018-12-20 10:00 ` Hans de Goede
2018-12-20 21:09 ` Rafael J. Wysocki [this message]
2018-12-21 10:43 ` Hans de Goede
2018-12-21 14:50 ` Wolfram Sang
2018-12-21 18:40 ` Peter Rosin
2018-12-21 18:50 ` Wolfram Sang
2018-12-19 16:48 ` [PATCH 02/10] i2c: reject new transfers when adapters are suspended Wolfram Sang
2018-12-19 16:48 ` [PATCH 03/10] i2c: synquacer: remove unused is_suspended flag Wolfram Sang
2018-12-19 16:48 ` [PATCH 04/10] i2c: brcmstb: use core helper to mark adapter suspended Wolfram Sang
2018-12-19 16:48 ` [PATCH 05/10] i2c: zx2967: " Wolfram Sang
2018-12-19 16:48 ` [PATCH 06/10] i2c: sprd: don't use pdev as variable name for struct device * Wolfram Sang
2018-12-21 8:58 ` Baolin Wang
2018-12-19 16:48 ` [PATCH 07/10] i2c: sprd: use core helper to mark adapter suspended Wolfram Sang
2018-12-21 9:03 ` Baolin Wang
2018-12-19 16:48 ` [PATCH 08/10] i2c: exynos5: " Wolfram Sang
2018-12-19 16:48 ` [PATCH 09/10] i2c: s3c2410: " Wolfram Sang
2018-12-19 16:48 ` [PATCH 10/10] i2c: rcar: add suspend/resume support Wolfram Sang
2019-01-08 20:09 ` [PATCH 00/10] i2c: move handling of suspended adapters to the core Wolfram Sang
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