RE: [PATCH RFC 3/6] dt-bindings: rtc: isl1208: Convert to json-schema

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Hi all,


> -----Original Message-----
> From: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> Sent: Wednesday, May 3, 2023 9:46 AM
> To: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>; Alexandre Belloni
> <alexandre.belloni@xxxxxxxxxxx>; Rob Herring <robh+dt@xxxxxxxxxx>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>; Trent Piepho
> <tpiepho@xxxxxxxxxx>; linux-rtc@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx;
> Geert Uytterhoeven <geert+renesas@xxxxxxxxx>; Fabrizio Castro
> <fabrizio.castro.jz@xxxxxxxxxxx>; linux-renesas-soc@xxxxxxxxxxxxxxx
> Subject: [PATCH RFC 3/6] dt-bindings: rtc: isl1208: Convert to json-schema
> 
> Convert the isl1208 RTC device tree binding documentation to json-schema.
> 
> Update the example to match reality.
> 
> Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/rtc/isil,isl1208.txt  | 38 ----------
> .../devicetree/bindings/rtc/isil,isl1208.yaml | 74 +++++++++++++++++++
>  2 files changed, 74 insertions(+), 38 deletions(-)  delete mode 100644
> Documentation/devicetree/bindings/rtc/isil,isl1208.txt
>  create mode 100644 Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.txt
> b/Documentation/devicetree/bindings/rtc/isil,isl1208.txt
> deleted file mode 100644
> index 51f003006f04..000000000000
> --- a/Documentation/devicetree/bindings/rtc/isil,isl1208.txt
> +++ /dev/null
> @@ -1,38 +0,0 @@
> -Intersil ISL1209/19 I2C RTC/Alarm chip with event in
> -
> -ISL12X9 have additional pins EVIN and #EVDET for tamper detection, while
> the
> -ISL1208 and ISL1218 do not.  They are all use the same driver with the
> bindings -described here, with chip specific properties as noted.
> -
> -Required properties supported by the device:
> - - "compatible": Should be one of the following:
> -		- "isil,isl1208"
> -		- "isil,isl1209"
> -		- "isil,isl1218"
> -		- "isil,isl1219"
> - - "reg": I2C bus address of the device
> -
> -Optional properties:
> - - "interrupt-names": list which may contains "irq" and "evdet"
> -	evdet applies to isl1209 and isl1219 only
> - - "interrupts": list of interrupts for "irq" and "evdet"
> -	evdet applies to isl1209 and isl1219 only
> - - "isil,ev-evienb": Enable or disable internal pull on EVIN pin
> -	Applies to isl1209 and isl1219 only
> -	Possible values are 0 and 1
> -	Value 0 enables internal pull-up on evin pin, 1 disables it.
> -	Default will leave the non-volatile configuration of the pullup
> -	as is.
> -
> -Example isl1219 node with #IRQ pin connected to SoC gpio1 pin12 and #EVDET
> pin -connected to SoC gpio2 pin 24 and internal pull-up enabled in EVIN pin.
> -
> -	isl1219: rtc@68 {
> -		compatible = "isil,isl1219";
> -		reg = <0x68>;
> -		interrupt-names = "irq", "evdet";
> -		interrupts-extended = <&gpio1 12 IRQ_TYPE_EDGE_FALLING>,
> -			<&gpio2 24 IRQ_TYPE_EDGE_FALLING>;
> -		isil,ev-evienb = <1>;
> -	};
> -
> diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
> b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
> new file mode 100644
> index 000000000000..04d51887855f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml
> @@ -0,0 +1,74 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> +---
> +$id:
> +https://jpn01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevice
> +tree.org%2Fschemas%2Frtc%2Fisil%2Cisl1208.yaml%23&data=05%7C01%7Cbiju.d
> +as.jz%40bp.renesas.com%7C369929b1ce554af8b10008db4bb2e184%7C53d82571da1
> +947e49cb4625a166a4a2a%7C0%7C0%7C638187003880337413%7CUnknown%7CTWFpbGZs
> +b3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%
> +7C3000%7C%7C%7C&sdata=hhWJWxRzJEgudMmnw%2Fl9DgpL0%2BaPRWfWDK2mGqztl3c%3
> +D&reserved=0
> +$schema:
> +https://jpn01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevice
> +tree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7Cbiju.das.jz%40bp.
> +renesas.com%7C369929b1ce554af8b10008db4bb2e184%7C53d82571da1947e49cb462
> +5a166a4a2a%7C0%7C0%7C638187003880337413%7CUnknown%7CTWFpbGZsb3d8eyJWIjo
> +iMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7
> +C%7C&sdata=figbanniGklELxfV4t10SVsg4i0X%2Bozm68rxXy4pupg%3D&reserved=0
> +
> +title: Intersil ISL12{08,09,18,19} I2C RTC/Alarm chip
> +
> +maintainers:
> +  - Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> +  - Trent Piepho <tpiepho@xxxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - isil,isl1208
> +          - isil,isl1209
> +          - isil,isl1218
> +          - isil,isl1219
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    minItems: 1
> +    maxItems: 2
> +
> +  interrupt-names:
> +    items:
> +      - const: irq
> +      - const: evdet
> +
> +  isil,ev-evienb:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 0, 1 ]
> +    default: 0

Not sure, default should be removes as per [1]?

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/rtc/isil,isl1208.txt?h=next-20230428#n20


Cheers,
Biju

> +    description: |
> +      Enable or disable internal pull on EVIN pin:
> +        <0> : Enable internal pull-up
> +        <1> : Disable internal pull-up
> +
> +required:
> +  - compatible
> +  - reg
> +
> +allOf:
> +  - $ref: rtc.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - isil,isl1209
> +              - isil,isl1219
> +    then:
> +      required:
> +        - interrupts-extended
> +        - interrupt-names
> +        - isil,ev-evienb
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        rtc_twi: rtc@6f {
> +            compatible = "isil,isl1208";
> +            reg = <0x6f>;
> +        };
> +    };
> --
> 2.25.1





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