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, Axel Haslam <ahaslam+renesas@baylibre.com>, devicetree@vger.kernel.org, Marc Titinger <mtitinger+renesas@baylibre.com>, Lina Iyer <lina.iyer@linaro.org> Subject: [PATCH v3 02/15] dt/bindings: Update binding for PM domain idle states Date: Thu, 4 Aug 2016 17:04:49 -0600 [thread overview] Message-ID: <1470351902-43103-3-git-send-email-lina.iyer@linaro.org> (raw) In-Reply-To: <1470351902-43103-1-git-send-email-lina.iyer@linaro.org> From: Axel Haslam <ahaslam+renesas@baylibre.com> Update DT bindings to describe idle states of PM domains. Cc: <devicetree@vger.kernel.org> Signed-off-by: Marc Titinger <mtitinger+renesas@baylibre.com> Signed-off-by: Lina Iyer <lina.iyer@linaro.org> [Lina: Added state properties, removed state names, wakeup-latency, added of_pm_genpd_init() API, pruned commit text] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Ulf: Moved around code to make it compile properly, rebased on top of multiple state support] --- .../devicetree/bindings/power/power_domain.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt index 025b5e7..4960486 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power_domain.txt @@ -29,6 +29,10 @@ Optional properties: specified by this binding. More details about power domain specifier are available in the next section. +- domain-idle-states : A phandle of an idle-state that shall be soaked into a + generic domain power state. The idle state definitions are + compatible with arm,idle-state specified in [1]. + Example: power: power-controller@12340000 { @@ -59,6 +63,57 @@ The nodes above define two power controllers: 'parent' and 'child'. Domains created by the 'child' power controller are subdomains of '0' power domain provided by the 'parent' power controller. +Example 3: ARM v7 style CPU PM domains (Linux domain controller) + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + CPU0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a7", "arm,armv7"; + reg = <0x0>; + power-domains = <&a7_pd>; + }; + + CPU1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a15", "arm,armv7"; + reg = <0x0>; + power-domains = <&a15_pd>; + }; + }; + + pm-domains { + a15_pd: a15_pd { + /* will have A15 platform ARM_PD_METHOD_OF_DECLARE*/ + compatible = "arm,cortex-a15"; + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_SLEEP_0>; + }; + + a7_pd: a7_pd { + /* will have a A7 platform ARM_PD_METHOD_OF_DECLARE*/ + compatible = "arm,cortex-a7"; + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_SLEEP_0>, <&CLUSTER_SLEEP_1>; + }; + + CLUSTER_SLEEP_0: state0 { + compatible = "arm,idle-state"; + entry-latency-us = <1000>; + exit-latency-us = <2000>; + min-residency-us = <10000>; + }; + + CLUSTER_SLEEP_1: state1 { + compatible = "arm,idle-state"; + entry-latency-us = <5000>; + exit-latency-us = <5000>; + min-residency-us = <100000>; + }; + }; + ==PM domain consumers== Required properties: @@ -76,3 +131,5 @@ Example: The node above defines a typical PM domain consumer device, which is located inside a PM domain with index 0 of a power controller represented by a node with the label "power". + +[1]. Documentation/devicetree/bindings/arm/idle-states.txt -- 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 02/15] dt/bindings: Update binding for PM domain idle states Date: Thu, 4 Aug 2016 17:04:49 -0600 [thread overview] Message-ID: <1470351902-43103-3-git-send-email-lina.iyer@linaro.org> (raw) In-Reply-To: <1470351902-43103-1-git-send-email-lina.iyer@linaro.org> From: Axel Haslam <ahaslam+renesas@baylibre.com> Update DT bindings to describe idle states of PM domains. Cc: <devicetree@vger.kernel.org> Signed-off-by: Marc Titinger <mtitinger+renesas@baylibre.com> Signed-off-by: Lina Iyer <lina.iyer@linaro.org> [Lina: Added state properties, removed state names, wakeup-latency, added of_pm_genpd_init() API, pruned commit text] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Ulf: Moved around code to make it compile properly, rebased on top of multiple state support] --- .../devicetree/bindings/power/power_domain.txt | 57 ++++++++++++++++++++++ 1 file changed, 57 insertions(+) diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt index 025b5e7..4960486 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power_domain.txt @@ -29,6 +29,10 @@ Optional properties: specified by this binding. More details about power domain specifier are available in the next section. +- domain-idle-states : A phandle of an idle-state that shall be soaked into a + generic domain power state. The idle state definitions are + compatible with arm,idle-state specified in [1]. + Example: power: power-controller at 12340000 { @@ -59,6 +63,57 @@ The nodes above define two power controllers: 'parent' and 'child'. Domains created by the 'child' power controller are subdomains of '0' power domain provided by the 'parent' power controller. +Example 3: ARM v7 style CPU PM domains (Linux domain controller) + + cpus { + #address-cells = <1>; + #size-cells = <0>; + + CPU0: cpu at 0 { + device_type = "cpu"; + compatible = "arm,cortex-a7", "arm,armv7"; + reg = <0x0>; + power-domains = <&a7_pd>; + }; + + CPU1: cpu at 1 { + device_type = "cpu"; + compatible = "arm,cortex-a15", "arm,armv7"; + reg = <0x0>; + power-domains = <&a15_pd>; + }; + }; + + pm-domains { + a15_pd: a15_pd { + /* will have A15 platform ARM_PD_METHOD_OF_DECLARE*/ + compatible = "arm,cortex-a15"; + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_SLEEP_0>; + }; + + a7_pd: a7_pd { + /* will have a A7 platform ARM_PD_METHOD_OF_DECLARE*/ + compatible = "arm,cortex-a7"; + #power-domain-cells = <0>; + domain-idle-states = <&CLUSTER_SLEEP_0>, <&CLUSTER_SLEEP_1>; + }; + + CLUSTER_SLEEP_0: state0 { + compatible = "arm,idle-state"; + entry-latency-us = <1000>; + exit-latency-us = <2000>; + min-residency-us = <10000>; + }; + + CLUSTER_SLEEP_1: state1 { + compatible = "arm,idle-state"; + entry-latency-us = <5000>; + exit-latency-us = <5000>; + min-residency-us = <100000>; + }; + }; + ==PM domain consumers== Required properties: @@ -76,3 +131,5 @@ Example: The node above defines a typical PM domain consumer device, which is located inside a PM domain with index 0 of a power controller represented by a node with the label "power". + +[1]. Documentation/devicetree/bindings/arm/idle-states.txt -- 2.7.4
next prev parent reply other threads:[~2016-08-04 23:05 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 ` Lina Iyer [this message] 2016-08-04 23:04 ` [PATCH v3 02/15] dt/bindings: Update binding for PM domain idle states 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 ` [PATCH v3 05/15] PM / doc: Update device documentation for devices in " Lina Iyer 2016-08-04 23:04 ` 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
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