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Date: Wed, 07 Apr 2021 21:07:01 +0530
From: skakit@...eaurora.org
To: Bjorn Andersson <bjorn.andersson@...aro.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
Hi Bjorn,
On 2021-03-11 22:33, Bjorn Andersson wrote:
> 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?
>
you mean we should split this into two:
qcom-pm8xxx.yaml and qcom-pm8xxx-rtc.yaml
Please correct me if wrong.
> 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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