diff options
author | Krzysztof Kozlowski <krzk@kernel.org> | 2019-10-30 18:32:15 +0100 |
---|---|---|
committer | Rob Herring <robh@kernel.org> | 2019-11-14 10:46:16 -0600 |
commit | 5279a3d8bedea477eaaaddedc3dd5fa62b86cfd7 (patch) | |
tree | ed271a2bb16ea9806bd6ef1c02d7bf1391705726 /Documentation/devicetree/bindings/power | |
parent | 3afd6389f3206fd45afe6101a1589258577dacbd (diff) | |
download | linux-5279a3d8bedea477eaaaddedc3dd5fa62b86cfd7.tar.bz2 |
dt-bindings: power: Convert Generic Power Domain bindings to json-schema
Convert Generic Power Domain bindings to DT schema format using
json-schema.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/power')
-rw-r--r-- | Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/fsl,imx-gpc.txt | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/power-domain.txt (renamed from Documentation/devicetree/bindings/power/power_domain.txt) | 95 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/power-domain.yaml | 133 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt | 2 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt | 2 |
7 files changed, 139 insertions, 99 deletions
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt index 0fdc3dd1125e..99b5b10cda31 100644 --- a/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt +++ b/Documentation/devicetree/bindings/power/amlogic,meson-gx-pwrc.txt @@ -10,7 +10,7 @@ The Video Processing Unit power domain is controlled by this power controller, but the domain requires some external resources to meet the correct power sequences. The bindings must respect the power domain bindings as described in the file -power_domain.txt +power-domain.yaml Device Tree Bindings: --------------------- diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt index 726ec2875223..f0f5553a9e74 100644 --- a/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt +++ b/Documentation/devicetree/bindings/power/fsl,imx-gpc.txt @@ -19,7 +19,7 @@ Required properties: - ipg The power domains are generic power domain providers as documented in -Documentation/devicetree/bindings/power/power_domain.txt. They are described as +Documentation/devicetree/bindings/power/power-domain.yaml. They are described as subnodes of the power gating controller 'pgc' node of the GPC and should contain the following: diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt index 7c7e972aaa42..61649202f6f5 100644 --- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt +++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt @@ -17,7 +17,7 @@ Required properties: Power domains contained within GPC node are generic power domain providers, documented in -Documentation/devicetree/bindings/power/power_domain.txt, which are +Documentation/devicetree/bindings/power/power-domain.yaml, which are described as subnodes of the power gating controller 'pgc' node, which, in turn, is expected to contain the following: diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power-domain.txt index 8f8b25a24b8f..5b09b2deb483 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power-domain.txt @@ -13,100 +13,7 @@ phandle arguments (so called PM domain specifiers) of length specified by the ==PM domain providers== -Required properties: - - #power-domain-cells : Number of cells in a PM domain specifier; - Typically 0 for nodes representing a single PM domain and 1 for nodes - providing multiple PM domains (e.g. power controllers), but can be any value - as specified by device tree binding documentation of particular provider. - -Optional properties: - - power-domains : A phandle and PM domain specifier as defined by bindings of - the power controller specified by phandle. - Some power domains might be powered from another power domain (or have - other hardware specific dependencies). For representing such dependency - a standard PM domain consumer binding is used. When provided, all domains - created by the given provider should be subdomains of the domain - 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 domain-idle-state specified in [1]. phandles - that are not compatible with domain-idle-state will be - ignored. - The domain-idle-state property reflects the idle state of this PM domain and - not the idle states of the devices or sub-domains in the PM domain. Devices - and sub-domains have their own idle-states independent of the parent - domain's idle states. In the absence of this property, the domain would be - considered as capable of being powered-on or powered-off. - -- operating-points-v2 : Phandles to the OPP tables of power domains provided by - a power domain provider. If the provider provides a single power domain only - or all the power domains provided by the provider have identical OPP tables, - then this shall contain a single phandle. Refer to ../opp/opp.txt for more - information. - -Example: - - power: power-controller@12340000 { - compatible = "foo,power-controller"; - reg = <0x12340000 0x1000>; - #power-domain-cells = <1>; - }; - -The node above defines a power controller that is a PM domain provider and -expects one cell as its phandle argument. - -Example 2: - - parent: power-controller@12340000 { - compatible = "foo,power-controller"; - reg = <0x12340000 0x1000>; - #power-domain-cells = <1>; - }; - - child: power-controller@12341000 { - compatible = "foo,power-controller"; - reg = <0x12341000 0x1000>; - power-domains = <&parent 0>; - #power-domain-cells = <1>; - }; - -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: - parent: power-controller@12340000 { - compatible = "foo,power-controller"; - reg = <0x12340000 0x1000>; - #power-domain-cells = <0>; - domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>; - }; - - child: power-controller@12341000 { - compatible = "foo,power-controller"; - reg = <0x12341000 0x1000>; - power-domains = <&parent>; - #power-domain-cells = <0>; - domain-idle-states = <&DOMAIN_PWR_DN>; - }; - - DOMAIN_RET: state@0 { - compatible = "domain-idle-state"; - reg = <0x0>; - entry-latency-us = <1000>; - exit-latency-us = <2000>; - min-residency-us = <10000>; - }; - - DOMAIN_PWR_DN: state@1 { - compatible = "domain-idle-state"; - reg = <0x1>; - entry-latency-us = <5000>; - exit-latency-us = <8000>; - min-residency-us = <7000>; - }; +See power-domain.yaml. ==PM domain consumers== diff --git a/Documentation/devicetree/bindings/power/power-domain.yaml b/Documentation/devicetree/bindings/power/power-domain.yaml new file mode 100644 index 000000000000..455b573293ae --- /dev/null +++ b/Documentation/devicetree/bindings/power/power-domain.yaml @@ -0,0 +1,133 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/power-domain.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Generic PM domains + +maintainers: + - Rafael J. Wysocki <rjw@rjwysocki.net> + - Kevin Hilman <khilman@kernel.org> + - Ulf Hansson <ulf.hansson@linaro.org> + +description: |+ + System on chip designs are often divided into multiple PM domains that can be + used for power gating of selected IP blocks for power saving by reduced leakage + current. + + This device tree binding can be used to bind PM domain consumer devices with + their PM domains provided by PM domain providers. A PM domain provider can be + represented by any node in the device tree and can provide one or more PM + domains. A consumer node can refer to the provider by a phandle and a set of + phandle arguments (so called PM domain specifiers) of length specified by the + \#power-domain-cells property in the PM domain provider node. + +properties: + $nodename: + pattern: "^(power-controller|power-domain)(@.*)?$" + + domain-idle-states: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + A phandle of an idle-state that shall be soaked into a generic domain + power state. The idle state definitions are compatible with + domain-idle-state specified in + Documentation/devicetree/bindings/power/domain-idle-state.txt + phandles that are not compatible with domain-idle-state will be ignored. + The domain-idle-state property reflects the idle state of this PM domain + and not the idle states of the devices or sub-domains in the PM domain. + Devices and sub-domains have their own idle-states independent + of the parent domain's idle states. In the absence of this property, + the domain would be considered as capable of being powered-on + or powered-off. + + operating-points-v2: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: + Phandles to the OPP tables of power domains provided by a power domain + provider. If the provider provides a single power domain only or all + the power domains provided by the provider have identical OPP tables, + then this shall contain a single phandle. Refer to ../opp/opp.txt + for more information. + + "#power-domain-cells": + description: + Number of cells in a PM domain specifier. Typically 0 for nodes + representing a single PM domain and 1 for nodes providing multiple PM + domains (e.g. power controllers), but can be any value as specified + by device tree binding documentation of particular provider. + + power-domains: + description: + A phandle and PM domain specifier as defined by bindings of the power + controller specified by phandle. Some power domains might be powered + from another power domain (or have other hardware specific + dependencies). For representing such dependency a standard PM domain + consumer binding is used. When provided, all domains created + by the given provider should be subdomains of the domain specified + by this binding. + +required: + - "#power-domain-cells" + +examples: + - | + power: power-controller@12340000 { + compatible = "foo,power-controller"; + reg = <0x12340000 0x1000>; + #power-domain-cells = <1>; + }; + + // The node above defines a power controller that is a PM domain provider and + // expects one cell as its phandle argument. + + - | + parent2: power-controller@12340000 { + compatible = "foo,power-controller"; + reg = <0x12340000 0x1000>; + #power-domain-cells = <1>; + }; + + child2: power-controller@12341000 { + compatible = "foo,power-controller"; + reg = <0x12341000 0x1000>; + power-domains = <&parent2 0>; + #power-domain-cells = <1>; + }; + + // 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. + + - | + parent3: power-controller@12340000 { + compatible = "foo,power-controller"; + reg = <0x12340000 0x1000>; + #power-domain-cells = <0>; + domain-idle-states = <&DOMAIN_RET>, <&DOMAIN_PWR_DN>; + }; + + child3: power-controller@12341000 { + compatible = "foo,power-controller"; + reg = <0x12341000 0x1000>; + power-domains = <&parent3>; + #power-domain-cells = <0>; + domain-idle-states = <&DOMAIN_PWR_DN>; + }; + + DOMAIN_RET: state@0 { + compatible = "domain-idle-state"; + reg = <0x0 0x0>; + entry-latency-us = <1000>; + exit-latency-us = <2000>; + min-residency-us = <10000>; + }; + + DOMAIN_PWR_DN: state@1 { + compatible = "domain-idle-state"; + reg = <0x1 0x0>; + entry-latency-us = <5000>; + exit-latency-us = <8000>; + min-residency-us = <7000>; + }; diff --git a/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt index beda7d2efc30..49aba15dff8b 100644 --- a/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt +++ b/Documentation/devicetree/bindings/power/renesas,sysc-rmobile.txt @@ -29,7 +29,7 @@ Optional nodes: Each of the PM domain nodes represents a PM domain, as documented by the generic PM domain bindings in -Documentation/devicetree/bindings/power/power_domain.txt. +Documentation/devicetree/bindings/power/power-domain.yaml. The nodes should be named by the real power area names, and thus their names should be unique. diff --git a/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt b/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt index 8d1b8200ebd0..54b9f9d0f90f 100644 --- a/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt +++ b/Documentation/devicetree/bindings/power/xlnx,zynqmp-genpd.txt @@ -4,7 +4,7 @@ Device Tree Bindings for the Xilinx Zynq MPSoC PM domains The binding for zynqmp-power-controller follow the common generic PM domain binding[1]. -[1] Documentation/devicetree/bindings/power/power_domain.txt +[1] Documentation/devicetree/bindings/power/power-domain.yaml == Zynq MPSoC Generic PM Domain Node == |