From: Lina Iyer <lina.iyer@linaro.org> To: ulf.hansson@linaro.org, khilman@kernel.org, rjw@rjwysocki.net, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: andy.gross@linaro.org, sboyd@codeaurora.org, linux-arm-msm@vger.kernel.org, Lina Iyer <lina.iyer@linaro.org> Subject: [PATCH v3 05/15] PM / doc: Update device documentation for devices in IRQ safe PM domains Date: Thu, 4 Aug 2016 17:04:52 -0600 [thread overview] Message-ID: <1470351902-43103-6-git-send-email-lina.iyer@linaro.org> (raw) In-Reply-To: <1470351902-43103-1-git-send-email-lina.iyer@linaro.org> Update documentation to reflect the changes made to support IRQ safe PM domains. Signed-off-by: Lina Iyer <lina.iyer@linaro.org> --- Documentation/power/devices.txt | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 8ba6625..a622136 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -607,7 +607,17 @@ 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, by default, operate in process context. If a device can operate in +IRQ safe context that has to be explicitly indicated by setting the irq_safe +boolean inside struct generic_pm_domain to be true. Power domains by default, +operate in process context but could have devices that are IRQ safe. Such +power domains cannot be powered on/off during runtime PM. On the other hand, +IRQ safe PM domains that have IRQ safe devices may be powered off when all +the devices are in idle. An IRQ safe domain may only be attached as a +subdomain to another IRQ safe domain. 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
WARNING: multiple messages have this Message-ID (diff)
From: lina.iyer@linaro.org (Lina Iyer) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 05/15] PM / doc: Update device documentation for devices in IRQ safe PM domains Date: Thu, 4 Aug 2016 17:04:52 -0600 [thread overview] Message-ID: <1470351902-43103-6-git-send-email-lina.iyer@linaro.org> (raw) In-Reply-To: <1470351902-43103-1-git-send-email-lina.iyer@linaro.org> Update documentation to reflect the changes made to support IRQ safe PM domains. Signed-off-by: Lina Iyer <lina.iyer@linaro.org> --- Documentation/power/devices.txt | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 8ba6625..a622136 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -607,7 +607,17 @@ 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, by default, operate in process context. If a device can operate in +IRQ safe context that has to be explicitly indicated by setting the irq_safe +boolean inside struct generic_pm_domain to be true. Power domains by default, +operate in process context but could have devices that are IRQ safe. Such +power domains cannot be powered on/off during runtime PM. On the other hand, +IRQ safe PM domains that have IRQ safe devices may be powered off when all +the devices are in idle. An IRQ safe domain may only be attached as a +subdomain to another IRQ safe domain. 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:[~2016-08-04 23:04 UTC|newest] Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-08-04 23:04 [PATCH v3 00/15] PM: SoC idle support using PM domains Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 01/15] PM / Domains: Allow domain power states to be read from DT Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 02/15] dt/bindings: Update binding for PM domain idle states Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-09 23:55 ` Rob Herring 2016-08-09 23:55 ` Rob Herring 2016-08-10 15:14 ` Sudeep Holla 2016-08-10 15:14 ` Sudeep Holla 2016-08-10 16:40 ` Lina Iyer 2016-08-10 16:40 ` Lina Iyer [not found] ` <20160810164034.GA1401-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-08-10 18:09 ` Sudeep Holla 2016-08-10 18:09 ` Sudeep Holla 2016-08-10 18:13 ` Sudeep Holla 2016-08-10 18:13 ` Sudeep Holla [not found] ` <5e59874c-bbb7-270a-199c-da1ff5932554-5wv7dgnIgG8@public.gmane.org> 2016-08-11 21:10 ` Lina Iyer 2016-08-11 21:10 ` Lina Iyer [not found] ` <20160811211023.GC1401-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-08-12 9:47 ` Brendan Jackman 2016-08-12 9:47 ` Brendan Jackman 2016-08-12 10:08 ` Sudeep Holla 2016-08-12 10:08 ` Sudeep Holla 2016-08-15 16:08 ` Lina Iyer 2016-08-15 16:08 ` Lina Iyer 2016-08-15 16:14 ` Sudeep Holla 2016-08-15 16:14 ` Sudeep Holla 2016-08-15 22:40 ` Lina Iyer 2016-08-15 22:40 ` Lina Iyer [not found] ` <20160815224014.GF1401-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-08-16 8:34 ` Brendan Jackman 2016-08-16 8:34 ` Brendan Jackman 2016-08-16 8:41 ` Brendan Jackman 2016-08-16 8:41 ` Brendan Jackman 2016-08-16 9:19 ` Sudeep Holla 2016-08-16 9:19 ` Sudeep Holla 2016-08-12 12:35 ` Brendan Jackman 2016-08-12 12:35 ` Brendan Jackman 2016-08-15 16:06 ` Lina Iyer 2016-08-15 16:06 ` Lina Iyer 2016-08-19 18:10 ` Kevin Hilman 2016-08-19 18:10 ` Kevin Hilman 2016-08-24 14:07 ` Sudeep Holla 2016-08-24 14:07 ` Sudeep Holla [not found] ` <1470351902-43103-3-git-send-email-lina.iyer-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-08-24 13:48 ` [RFC 0/6] Illustration of using domain-idle-states for CPU " Brendan Jackman 2016-08-24 13:48 ` [RFC 1/6] cpuidle: Rename cpuidle_get_{cpu->dev}_driver Brendan Jackman 2016-08-24 13:48 ` [RFC 2/6] cpuidle: Add public funcion to get driver from CPU index Brendan Jackman [not found] ` <20160824134822.3591-1-brendan.jackman-5wv7dgnIgG8@public.gmane.org> 2016-08-24 13:48 ` [RFC 3/6] cpuidle: Add device_node pointer in cpuidle_state Brendan Jackman 2016-08-24 13:48 ` [RFC 6/6] arm64: dts: Add domain-idle-states for Juno r0 power domains Brendan Jackman 2016-08-24 13:48 ` [RFC 4/6] cpuidle: dt: Add support for reading states from " Brendan Jackman 2016-08-24 13:48 ` [RFC 5/6] arm64: dts: Add Juno r0 CPU power domain tree Brendan Jackman 2016-08-04 23:04 ` [PATCH v3 03/15] PM / Domains: Abstract genpd locking Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 04/15] PM / Domains: Support IRQ safe PM domains Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` Lina Iyer [this message] 2016-08-04 23:04 ` [PATCH v3 05/15] PM / doc: Update device documentation for devices in " Lina Iyer 2016-08-04 23:04 ` [PATCH v3 06/15] PM / cpu_domains: Setup PM domains for CPUs/clusters Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 07/15] ARM: cpuidle: Add runtime PM support for CPUs Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 08/15] timer: Export next wake up of a CPU Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 09/15] PM / cpu_domains: Add PM Domain governor for CPUs Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 10/15] doc / cpu_domains: Describe CPU PM domains setup and governor Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 11/15] drivers: firmware: psci: Allow OS Initiated suspend mode Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:04 ` [PATCH v3 12/15] drivers: firmware: psci: Support cluster idle states for OS-Initiated Lina Iyer 2016-08-04 23:04 ` Lina Iyer 2016-08-04 23:05 ` [PATCH v3 13/15] dt/bindings: Add PSCI OS-Initiated PM Domains bindings Lina Iyer 2016-08-04 23:05 ` Lina Iyer 2016-08-05 14:44 ` Lina Iyer 2016-08-05 14:44 ` Lina Iyer 2016-08-04 23:05 ` [PATCH v3 14/15] ARM64: dts: Add PSCI cpuidle support for MSM8916 Lina Iyer 2016-08-04 23:05 ` Lina Iyer [not found] ` <1470351902-43103-1-git-send-email-lina.iyer-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> 2016-08-04 23:05 ` [PATCH v3 15/15] ARM64: dts: Define CPU power domain " Lina Iyer 2016-08-04 23:05 ` Lina Iyer 2016-08-10 15:27 ` Sudeep Holla 2016-08-10 15:27 ` Sudeep Holla 2016-08-10 17:35 ` Lina Iyer 2016-08-10 17:35 ` Lina Iyer 2016-08-11 9:30 ` Sudeep Holla 2016-08-11 9:30 ` Sudeep Holla
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=1470351902-43103-6-git-send-email-lina.iyer@linaro.org \ --to=lina.iyer@linaro.org \ --cc=andy.gross@linaro.org \ --cc=khilman@kernel.org \ --cc=linux-arm-kernel@lists.infradead.org \ --cc=linux-arm-msm@vger.kernel.org \ --cc=linux-pm@vger.kernel.org \ --cc=rjw@rjwysocki.net \ --cc=sboyd@codeaurora.org \ --cc=ulf.hansson@linaro.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.