Convert to YAML in order to allow validation. Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- I'm aware that this conflicts with Sibi's removal of '#power-domain-cells', but that's a trivial change regardless of which of the two patches gets in first. .../bindings/soc/qcom/qcom,aoss-qmp.txt | 90 -------------- .../bindings/soc/qcom/qcom,aoss-qmp.yaml | 115 ++++++++++++++++++ 2 files changed, 115 insertions(+), 90 deletions(-) delete mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt deleted file mode 100644 index 3747032311a4..000000000000 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.txt +++ /dev/null @@ -1,90 +0,0 @@ -Qualcomm Always-On Subsystem side channel binding - -This binding describes the hardware component responsible for side channel -requests to the always-on subsystem (AOSS), used for certain power management -requests that is not handled by the standard RPMh interface. Each client in the -SoC has it's own block of message RAM and IRQ for communication with the AOSS. -The protocol used to communicate in the message RAM is known as Qualcomm -Messaging Protocol (QMP) - -The AOSS side channel exposes control over a set of resources, used to control -a set of debug related clocks and to affect the low power state of resources -related to the secondary subsystems. These resources are exposed as a set of -power-domains. - -- compatible: - Usage: required - Value type: <string> - Definition: must be one of: - "qcom,sc7180-aoss-qmp" - "qcom,sc7280-aoss-qmp" - "qcom,sc8180x-aoss-qmp" - "qcom,sdm845-aoss-qmp" - "qcom,sm8150-aoss-qmp" - "qcom,sm8250-aoss-qmp" - "qcom,sm8350-aoss-qmp" - and: - "qcom,aoss-qmp" - -- reg: - Usage: required - Value type: <prop-encoded-array> - Definition: the base address and size of the message RAM for this - client's communication with the AOSS - -- interrupts: - Usage: required - Value type: <prop-encoded-array> - Definition: should specify the AOSS message IRQ for this client - -- mboxes: - Usage: required - Value type: <prop-encoded-array> - Definition: reference to the mailbox representing the outgoing doorbell - in APCS for this client, as described in mailbox/mailbox.txt - -- #clock-cells: - Usage: optional - Value type: <u32> - Definition: must be 0 - The single clock represents the QDSS clock. - -- #power-domain-cells: - Usage: optional - Value type: <u32> - Definition: must be 1 - The provided power-domains are: - CDSP state (0), LPASS state (1), modem state (2), SLPI - state (3), SPSS state (4) and Venus state (5). - -= SUBNODES -The AOSS side channel also provides the controls for three cooling devices, -these are expressed as subnodes of the QMP node. The name of the node is used -to identify the resource and must therefor be "cx", "mx" or "ebi". - -- #cooling-cells: - Usage: optional - Value type: <u32> - Definition: must be 2 - -= EXAMPLE - -The following example represents the AOSS side-channel message RAM and the -mechanism exposing the power-domains, as found in SDM845. - - aoss_qmp: qmp@c300000 { - compatible = "qcom,sdm845-aoss-qmp", "qcom,aoss-qmp"; - reg = <0x0c300000 0x100000>; - interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>; - mboxes = <&apss_shared 0>; - - #power-domain-cells = <1>; - - cx_cdev: cx { - #cooling-cells = <2>; - }; - - mx_cdev: mx { - #cooling-cells = <2>; - }; - }; diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml new file mode 100644 index 000000000000..1b9de8e49356 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml @@ -0,0 +1,115 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/qcom/qcom,aoss-qmp.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Always-On Subsystem side channel binding + +maintainers: + - Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> + +description: + This binding describes the hardware component responsible for side channel + requests to the always-on subsystem (AOSS), used for certain power management + requests that is not handled by the standard RPMh interface. Each client in the + SoC has it's own block of message RAM and IRQ for communication with the AOSS. + The protocol used to communicate in the message RAM is known as Qualcomm + Messaging Protocol (QMP) + + The AOSS side channel exposes control over a set of resources, used to control + a set of debug related clocks and to affect the low power state of resources + related to the secondary subsystems. These resources are exposed as a set of + power-domains. + +properties: + compatible: + items: + - enum: + - "qcom,sc7180-aoss-qmp" + - "qcom,sc7280-aoss-qmp" + - "qcom,sc8180x-aoss-qmp" + - "qcom,sdm845-aoss-qmp" + - "qcom,sm8150-aoss-qmp" + - "qcom,sm8250-aoss-qmp" + - "qcom,sm8350-aoss-qmp" + - const: "qcom,aoss-qmp" + + reg: + maxItems: 1 + description: + The base address and size of the message RAM for this client's + communication with the AOSS + + interrupts: + maxItems: 1 + description: + Should specify the AOSS message IRQ for this client + + mboxes: + maxItems: 1 + description: + Reference to the mailbox representing the outgoing doorbell in APCS for + this client, as described in mailbox/mailbox.txt + + "#clock-cells": + const: 0 + description: + The single clock represents the QDSS clock. + + "#power-domain-cells": + const: 1 + description: | + The provided power-domains are: + CDSP state (0), LPASS state (1), modem state (2), SLPI + state (3), SPSS state (4) and Venus state (5). + +required: + - compatible + - reg + - interrupts + - mboxes + - "#clock-cells" + - "#power-domain-cells" + +additionalProperties: false + +patternProperties: + "^(cx|mx|ebi)$": + type: object + description: + The AOSS side channel also provides the controls for three cooling devices, + these are expressed as subnodes of the QMP node. The name of the node is + used to identify the resource and must therefor be "cx", "mx" or "ebi". + + properties: + "#cooling-cells": + const: 2 + + required: + - "#cooling-cells" + + additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + aoss_qmp: qmp@c300000 { + compatible = "qcom,sdm845-aoss-qmp", "qcom,aoss-qmp"; + reg = <0x0c300000 0x100000>; + interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>; + mboxes = <&apss_shared 0>; + + #clock-cells = <0>; + #power-domain-cells = <1>; + + cx_cdev: cx { + #cooling-cells = <2>; + }; + + mx_cdev: mx { + #cooling-cells = <2>; + }; + }; +... -- 2.29.2