Re: [PATCH v5 2/2] dt-bindings: rtc: add max313xx RTCs

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On 03/04/2023 17:43, Ibrahim Tilki wrote:
> Devicetree binding documentation for Analog Devices MAX313XX RTCs
> 
> Signed-off-by: Ibrahim Tilki <Ibrahim.Tilki@xxxxxxxxxx>
> Signed-off-by: Zeynep Arslanbenzer <Zeynep.Arslanbenzer@xxxxxxxxxx>
> ---
>  .../devicetree/bindings/rtc/adi,max313xx.yaml | 144 ++++++++++++++++++
>  1 file changed, 144 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> new file mode 100644
> index 000000000..0c17a395e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/adi,max313xx.yaml
> @@ -0,0 +1,144 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2022 Analog Devices Inc.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/adi,max313xx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices MAX313XX series I2C RTCs
> +
> +maintainers:
> +  - Ibrahim Tilki <Ibrahim.Tilki@xxxxxxxxxx>
> +  - Zeynep Arslanbenzer <Zeynep.Arslanbenzer@xxxxxxxxxx>
> +
> +description: Analog Devices MAX313XX series I2C RTCs.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,max31328
> +      - adi,max31329
> +      - adi,max31331
> +      - adi,max31334
> +      - adi,max31341
> +      - adi,max31342
> +      - adi,max31343
> +
> +  reg:
> +    description: I2C address of the RTC
> +    items:
> +      - enum: [0x68, 0x69]
> +
> +  interrupts:
> +    description: |

Do not need '|'.

> +      Alarm1 interrupt line of the RTC. Some of the RTCs have two interrupt
> +      lines and alarm1 interrupt muxing depends on the clockin/clockout
> +      configuration.
> +    maxItems: 1
> +
> +  "#clock-cells":
> +    description: |

Do not need '|'.

> +      RTC can be used as a clock source through its clock output pin when
> +      supplied.
> +    const: 0
> +
> +  clocks:
> +    description: |

Do not need '|'.

> +      RTC uses this clock for clock input when supplied. Clock has to provide
> +      one of these four frequencies: 1Hz, 50Hz, 60Hz or 32.768kHz.
> +    maxItems: 1
> +
> +  aux-voltage-chargeable:
> +    enum: [0, 1, 2]
> +    description: |
> +      Enables trickle charger.
> +      0: Charger is disabled (default)
> +      1: Charger is enabled
> +      2: Charger is enabled with a diode

2 is not an allowed value. I asked to drop this property. It is coming
from rtc.yaml. I also do not understand "with a diode". So otherwise it
is charging with, I don't know, FET?

> +
> +  trickle-resistor-ohms:
> +    description: Selected resistor for trickle charger.
> +    enum: [3000, 6000, 11000]
> +
> +required:
> +  - compatible
> +  - reg
> +
Best regards,
Krzysztof




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