Date: Thu, 15 Feb 2024 15:04:17 +0100
From: Josua Mayer <josua@...id-run.com>
To: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
 Tero Kristo <kristo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Alessandro Zummo <a.zummo@...ertech.it>,
 Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>,
 Tudor Ambarus <tudor.ambarus@...aro.org>,
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>,
 Miquel Raynal <miquel.raynal@...tlin.com>,
 Richard Weinberger <richard@....at>,
 Yazan Shhady <yazan.shhady@...id-run.com>,
 linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org,
 linux-iio@...r.kernel.org, Rob Herring <robh@...nel.org>,
 linux-mtd@...ts.infradead.org
Subject: Re: [PATCH v6 2/7] dt-bindings: rtc: abx80x: convert to yaml

Am 12.02.24 um 21:06 schrieb Alexandre Belloni:
> On 12/02/2024 18:38:09+0100, Josua Mayer wrote:
>> Convert the abracon abx80x rtc text bindings to dt-schema format.
>>
>> In addition to the text description reference generic interrupts
>> properties and add an example.
>>
>> Signed-off-by: Josua Mayer <josua@...id-run.com>
> Did something change since v6? If not, why didn't you collect the
> reviewed-by tag?
I forgot about seeing the tag by Krzysztof ... which is why I didn't 
collect it.
Nothing changed since v6, so this still valid:

Reviewed-by: Krzysztof Kozlowski<krzysztof.kozlowski@...aro.org>

>
>> ---
>>   .../devicetree/bindings/rtc/abracon,abx80x.txt     | 31 ---------
>>   .../devicetree/bindings/rtc/abracon,abx80x.yaml    | 79 ++++++++++++++++++++++
>>   2 files changed, 79 insertions(+), 31 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
>> deleted file mode 100644
>> index 2405e35a1bc0..000000000000
>> --- a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
>> +++ /dev/null
>> @@ -1,31 +0,0 @@
>> -Abracon ABX80X I2C ultra low power RTC/Alarm chip
>> -
>> -The Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801,
>> -ab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805
>> -is the superset of ab180x.
>> -
>> -Required properties:
>> -
>> - - "compatible": should one of:
>> -        "abracon,abx80x"
>> -        "abracon,ab0801"
>> -        "abracon,ab0803"
>> -        "abracon,ab0804"
>> -        "abracon,ab0805"
>> -        "abracon,ab1801"
>> -        "abracon,ab1803"
>> -        "abracon,ab1804"
>> -        "abracon,ab1805"
>> -        "microcrystal,rv1805"
>> -	Using "abracon,abx80x" will enable chip autodetection.
>> - - "reg": I2C bus address of the device
>> -
>> -Optional properties:
>> -
>> -The abx804 and abx805 have a trickle charger that is able to charge the
>> -connected battery or supercap. Both the following properties have to be defined
>> -and valid to enable charging:
>> -
>> - - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V)
>> - - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output
>> -                          resistor, the other values are in kOhm.
>> diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
>> new file mode 100644
>> index 000000000000..58dbbca27deb
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
>> @@ -0,0 +1,79 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/rtc/abracon,abx80x.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Abracon ABX80X I2C ultra low power RTC/Alarm chip
>> +
>> +maintainers:
>> +  - linux-rtc@...r.kernel.org
>> +
>> +allOf:
>> +  - $ref: rtc.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    description:
>> +      The wildcard 'abracon,abx80x' may be used to support a mix
>> +      of different abracon rtc`s. In this case the driver
>> +      must perform auto-detection from ID register.
>> +    enum:
>> +      - abracon,abx80x
>> +      - abracon,ab0801
>> +      - abracon,ab0803
>> +      - abracon,ab0804
>> +      - abracon,ab0805
>> +      - abracon,ab1801
>> +      - abracon,ab1803
>> +      - abracon,ab1804
>> +      - abracon,ab1805
>> +      - microcrystal,rv1805
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    maxItems: 1
>> +
>> +  abracon,tc-diode:
>> +    description:
>> +      Trickle-charge diode type.
>> +      Required to enable charging backup battery.
>> +
>> +      Supported are 'standard' diodes with a 0.6V drop
>> +      and 'schottky' diodes with a 0.3V drop.
>> +    $ref: /schemas/types.yaml#/definitions/string
>> +    enum:
>> +      - standard
>> +      - schottky
>> +
>> +  abracon,tc-resistor:
>> +    description:
>> +      Trickle-charge resistor value in kOhm.
>> +      Required to enable charging backup battery.
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    enum: [0, 3, 6, 11]
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +unevaluatedProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +
>> +    i2c {
>> +        #address-cells = <1>;
>> +        #size-cells = <0>;
>> +
>> +        rtc@69 {
>> +            compatible = "abracon,abx80x";
>> +            reg = <0x69>;
>> +            abracon,tc-diode = "schottky";
>> +            abracon,tc-resistor = <3>;
>> +            interrupts = <44 IRQ_TYPE_EDGE_FALLING>;
>> +        };
>> +    };
>>
>> -- 
>> 2.35.3
>>

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