From: Ulf Hansson <ulf.hansson@linaro.org> To: Lina Iyer <lina.iyer@linaro.org> Cc: Kevin Hilman <khilman@kernel.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, "linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>, "linux-arm-kernel@lists.infradead.org" <linux-arm-kernel@lists.infradead.org>, Andy Gross <andy.gross@linaro.org>, Stephen Boyd <sboyd@codeaurora.org>, "linux-arm-msm@vger.kernel.org" <linux-arm-msm@vger.kernel.org>, Brendan Jackman <brendan.jackman@arm.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Sudeep Holla <sudeep.holla@arm.com>, Juri Lelli <Juri.Lelli@arm.com> Subject: Re: [PATCH v2 8/8] PM / doc: Update device documentation for devices in IRQ safe PM domains Date: Mon, 10 Oct 2016 13:06:48 +0200 [thread overview] Message-ID: <CAPDyKFrPwp=iOH3jmDdwk4fKT94tDSrm_3sEicZ_0BaqXNsNOA@mail.gmail.com> (raw) In-Reply-To: <1475879821-8035-9-git-send-email-lina.iyer@linaro.org> On 8 October 2016 at 00:37, Lina Iyer <lina.iyer@linaro.org> wrote: > Update documentation to reflect the changes made to support IRQ safe PM > domains. > > Signed-off-by: Lina Iyer <lina.iyer@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Kind regards Uffe > --- > Documentation/power/devices.txt | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt > index 8ba6625..0401b53 100644 > --- a/Documentation/power/devices.txt > +++ b/Documentation/power/devices.txt > @@ -607,7 +607,14 @@ individually. Instead, a set of devices sharing a power resource can be put > into a low-power state together at the same time by turning off the shared > power resource. Of course, they also need to be put into the full-power state > together, by turning the shared power resource on. A set of devices with this > -property is often referred to as a power domain. > +property is often referred to as a power domain. A power domain may also be > +nested inside another power domain. > + > +Devices and PM domains may be defined as IRQ-safe, if they can be powered > +on/off even when the IRQs are disabled. An IRQ-safe device in a domain will > +disallow power management on the domain, unless the domain is also defined as > +IRQ-safe. The restriction this framework imposes on the parent domain of an > +IRQ-safe domain is that it must also be defined as IRQ-safe. > > Support for power domains is provided through the pm_domain field of struct > device. This field is a pointer to an object of type struct dev_pm_domain, > -- > 2.7.4 >
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From: ulf.hansson@linaro.org (Ulf Hansson) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 8/8] PM / doc: Update device documentation for devices in IRQ safe PM domains Date: Mon, 10 Oct 2016 13:06:48 +0200 [thread overview] Message-ID: <CAPDyKFrPwp=iOH3jmDdwk4fKT94tDSrm_3sEicZ_0BaqXNsNOA@mail.gmail.com> (raw) In-Reply-To: <1475879821-8035-9-git-send-email-lina.iyer@linaro.org> On 8 October 2016 at 00:37, Lina Iyer <lina.iyer@linaro.org> wrote: > Update documentation to reflect the changes made to support IRQ safe PM > domains. > > Signed-off-by: Lina Iyer <lina.iyer@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Kind regards Uffe > --- > Documentation/power/devices.txt | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt > index 8ba6625..0401b53 100644 > --- a/Documentation/power/devices.txt > +++ b/Documentation/power/devices.txt > @@ -607,7 +607,14 @@ individually. Instead, a set of devices sharing a power resource can be put > into a low-power state together at the same time by turning off the shared > power resource. Of course, they also need to be put into the full-power state > together, by turning the shared power resource on. A set of devices with this > -property is often referred to as a power domain. > +property is often referred to as a power domain. A power domain may also be > +nested inside another power domain. > + > +Devices and PM domains may be defined as IRQ-safe, if they can be powered > +on/off even when the IRQs are disabled. An IRQ-safe device in a domain will > +disallow power management on the domain, unless the domain is also defined as > +IRQ-safe. The restriction this framework imposes on the parent domain of an > +IRQ-safe domain is that it must also be defined as IRQ-safe. > > Support for power domains is provided through the pm_domain field of struct > device. This field is a pointer to an object of type struct dev_pm_domain, > -- > 2.7.4 >
next prev parent reply other threads:[~2016-10-10 11:06 UTC|newest] Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-10-07 22:36 [PATCH v2 0/8] PM / Domains: DT support for domain idle states & atomic PM domains Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-07 22:36 ` [PATCH v2 1/8] PM / Domains: Make genpd state allocation dynamic Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-10 8:40 ` Ulf Hansson 2016-10-10 8:40 ` Ulf Hansson 2016-10-10 15:05 ` Lina Iyer 2016-10-10 15:05 ` Lina Iyer 2016-10-07 22:36 ` [PATCH v2 2/8] PM / Domain: Add residency property to genpd states Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-07 22:36 ` [PATCH v2 3/8] PM / Domains: Allow domain power states to be read from DT Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-10 10:01 ` Ulf Hansson 2016-10-10 10:01 ` Ulf Hansson 2016-10-10 15:03 ` Lina Iyer 2016-10-10 15:03 ` Lina Iyer 2016-10-10 21:24 ` Ulf Hansson 2016-10-10 21:24 ` Ulf Hansson 2016-10-07 22:36 ` [PATCH v2 4/8] PM / Domains: Save the fwnode in genpd_power_state Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-10 10:03 ` Ulf Hansson 2016-10-10 10:03 ` Ulf Hansson 2016-10-07 22:36 ` [PATCH v2 5/8] dt/bindings: Update binding for PM domain idle states Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-10 15:45 ` Sudeep Holla 2016-10-10 15:45 ` Sudeep Holla 2016-10-10 16:43 ` Lina Iyer 2016-10-10 16:43 ` Lina Iyer [not found] ` <20161010164342.GC44885-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-10-10 17:13 ` Sudeep Holla 2016-10-10 17:13 ` Sudeep Holla 2016-10-10 22:13 ` Lina Iyer 2016-10-10 22:13 ` Lina Iyer 2016-10-11 11:29 ` Sudeep Holla 2016-10-11 11:29 ` Sudeep Holla 2016-10-10 17:19 ` Sudeep Holla 2016-10-10 17:19 ` Sudeep Holla 2016-10-07 22:36 ` [PATCH v2 6/8] PM / Domains: Abstract genpd locking Lina Iyer 2016-10-07 22:36 ` Lina Iyer 2016-10-07 22:37 ` [PATCH v2 7/8] PM / Domains: Support IRQ safe PM domains Lina Iyer 2016-10-07 22:37 ` Lina Iyer 2016-10-10 11:04 ` Ulf Hansson 2016-10-10 11:04 ` Ulf Hansson 2016-10-07 22:37 ` [PATCH v2 8/8] PM / doc: Update device documentation for devices in " Lina Iyer 2016-10-07 22:37 ` Lina Iyer 2016-10-10 11:06 ` Ulf Hansson [this message] 2016-10-10 11:06 ` Ulf Hansson
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