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Date: Thu, 11 Mar 2021 11:03:19 -0600
From: Bjorn Andersson <bjorn.andersson@...aro.org>
To: satya priya <skakit@...eaurora.org>
Cc: Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Rob Herring <robh+dt@...nel.org>,
Andy Gross <agross@...nel.org>,
Lee Jones <lee.jones@...aro.org>, linux-rtc@...r.kernel.org,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, kgunda@...eaurora.org
Subject: Re: [PATCH 2/3] dt-bindings: mfd: Convert pm8xxx bindings to yaml
On Thu 11 Mar 01:29 CST 2021, satya priya wrote:
> Convert pm8xxx rtc bindings from .txt to .yaml format.
>
Wonderful initiative, thank you!
> Signed-off-by: satya priya <skakit@...eaurora.org>
> ---
> .../devicetree/bindings/mfd/qcom-pm8xxx.txt | 99 -------------------
> .../devicetree/bindings/mfd/qcom-pm8xxx.yaml | 108 +++++++++++++++++++++
> 2 files changed, 108 insertions(+), 99 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/mfd/qcom-pm8xxx.txt
> create mode 100644 Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
>
> diff --git a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.txt b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.txt
> deleted file mode 100644
> index 9e5eba4..0000000
> --- a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.txt
> +++ /dev/null
> @@ -1,99 +0,0 @@
> -Qualcomm PM8xxx PMIC multi-function devices
> -
> -The PM8xxx family of Power Management ICs are used to provide regulated
> -voltages and other various functionality to Qualcomm SoCs.
> -
> -= PROPERTIES
> -
> -- compatible:
> - Usage: required
> - Value type: <string>
> - Definition: must be one of:
> - "qcom,pm8058"
> - "qcom,pm8821"
> - "qcom,pm8921"
> -
> -- #address-cells:
> - Usage: required
> - Value type: <u32>
> - Definition: must be 1
> -
> -- #size-cells:
> - Usage: required
> - Value type: <u32>
> - Definition: must be 0
> -
> -- interrupts:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: specifies the interrupt that indicates a subdevice
> - has generated an interrupt (summary interrupt). The
> - format of the specifier is defined by the binding document
> - describing the node's interrupt parent.
> -
> -- #interrupt-cells:
> - Usage: required
> - Value type : <u32>
> - Definition: must be 2. Specifies the number of cells needed to encode
> - an interrupt source. The 1st cell contains the interrupt
> - number. The 2nd cell is the trigger type and level flags
> - encoded as follows:
> -
> - 1 = low-to-high edge triggered
> - 2 = high-to-low edge triggered
> - 4 = active high level-sensitive
> - 8 = active low level-sensitive
> -
> -- interrupt-controller:
> - Usage: required
> - Value type: <empty>
> - Definition: identifies this node as an interrupt controller
> -
> -= SUBCOMPONENTS
> -
> -The PMIC contains multiple independent functions, each described in a subnode.
> -The below bindings specify the set of valid subnodes.
> -
> -== Real-Time Clock
> -
> -- compatible:
> - Usage: required
> - Value type: <string>
> - Definition: must be one of:
> - "qcom,pm8058-rtc"
> - "qcom,pm8921-rtc"
> - "qcom,pm8941-rtc"
> - "qcom,pm8018-rtc"
> -
> -- reg:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: single entry specifying the base address of the RTC registers
> -
> -- interrupts:
> - Usage: required
> - Value type: <prop-encoded-array>
> - Definition: single entry specifying the RTC's alarm interrupt
> -
> -- allow-set-time:
> - Usage: optional
> - Value type: <empty>
> - Definition: indicates that the setting of RTC time is allowed by
> - the host CPU
> -
> -= EXAMPLE
> -
> - pmicintc: pmic@0 {
> - compatible = "qcom,pm8921";
> - interrupts = <104 8>;
> - #interrupt-cells = <2>;
> - interrupt-controller;
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - rtc@11d {
> - compatible = "qcom,pm8921-rtc";
> - reg = <0x11d>;
> - interrupts = <0x27 0>;
> - };
> - };
> diff --git a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
> new file mode 100644
> index 0000000..b4892f1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
> @@ -0,0 +1,108 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/qcom-pm8xxx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm PM8xxx PMIC multi-function devices
> +
> +maintainers:
> + - Lee Jones <lee.jones@...aro.org>
While Lee is maintainer of the mfd core, it would be better if this was
someone looking out for the Qualcomm PMIC binding specifically.
> +
> +description: |
> + The PM8xxx family of Power Management ICs are used to provide regulated
> + voltages and other various functionality to Qualcomm SoCs.
> +
> +properties:
> + compatible:
> + enum:
> + - qcom,pm8058
> + - qcom,pm8821
> + - qcom,pm8921
> +
> + reg:
> + maxItems: 1
> +
> + '#address-cells':
> + const: 1
> +
> + '#size-cells':
> + const: 0
> +
> + interrupts:
> + description: |
> + Specifies the interrupt that indicates a subdevice has generated an
> + interrupt (summary interrupt).
> +
> + '#interrupt-cells':
> + description: |
> + Specifies the number of cells needed to encode an interrupt source.
> + The 1st cell contains the interrupt number. The 2nd cell is the
> + trigger type.
> + const: 2
> +
> + interrupt-controller: true
> +
> +patternProperties:
> + "rtc@[0-9a-f]+$":
Can we somehow link this to individual binding docs instead of listing
all the possible functions here?
Regards,
Bjorn
> + type: object
> + properties:
> + compatible:
> + enum:
> + - qcom,pm8058-rtc
> + - qcom,pm8921-rtc
> + - qcom,pm8941-rtc
> + - qcom,pm8018-rtc
> +
> + reg:
> + description: Specifies the base address of the RTC registers
> +
> + interrupts:
> + description: Specifies the RTC's alarm interrupts
> +
> + allow-set-time:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + Indicates that the setting of RTC time is allowed by the host CPU.
> +
> + required:
> + - compatible
> + - reg
> + - interrupts
> +
> + additionalProperties: false
> +
> +required:
> + - compatible
> + - '#address-cells'
> + - '#size-cells'
> + - interrupts
> + - '#interrupt-cells'
> + - interrupt-controller
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/spmi/spmi.h>
> + spmi_bus: spmi@...0000 {
> + reg = <0x0c440000 0x1100>;
> + #address-cells = <2>;
> + #size-cells = <0>;
> + pmicintc: pmic@0 {
> + reg = <0x0 SPMI_USID>;
> + compatible = "qcom,pm8921";
> + interrupts = <104 8>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + pm8921_rtc: rtc@11d {
> + compatible = "qcom,pm8921-rtc";
> + reg = <0x11d>;
> + interrupts = <0x27 0>;
> + };
> + };
> + };
> +...
> --
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>
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