Re: [PATCH v10 1/6] dt-bindings: mfd: add document bindings for mp2629

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On Fri, 17 Apr 2020 10:49:58 +0200
Saravanan Sekar <sravanhome@xxxxxxxxx> wrote:

> Add device tree binding information for mp2629 mfd driver.
> 
> Signed-off-by: Saravanan Sekar <sravanhome@xxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
> ---
>  .../devicetree/bindings/mfd/mps,mp2629.yaml   | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> new file mode 100644
> index 000000000000..b25b29259d67
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
> @@ -0,0 +1,61 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/mps,mp2629.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MP2629 Battery Charger PMIC from Monolithic Power System.
> +
> +maintainers:
> +  - Saravanan Sekar <sravanhome@xxxxxxxxx>
> +
> +description: |
> +  MP2629 is a PMIC providing battery charging and power supply for smartphones,
> +  wireless camera and portable devices. Chip is controlled over I2C.
> +
> +  The battery charge management device handles battery charger controller and
> +  ADC IIO device for battery, system voltage
> +
> +properties:
> +  compatible:
> +    const: mps,mp2629
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  interrupt-controller: true
> +
> +  "#interrupt-cells":
> +    const: 2
> +    description:
> +      The first cell is the IRQ number, the second cell is the trigger type.
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupt-controller
> +  - "#interrupt-cells"
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/input/linux-event-codes.h>
> +    i2c@7e205000 {

I thought the general trend for i2c devices was to leave the i2c
part 'vague'. 

    i2c {
          #address-cells = <1>;
          #size-cells = <0>;
         
          pmic@4b.. etc

Guess it doesn't matter if example contains too much information. Rob?

Otherwise looks good to me.

Thanks,

Jonathan
 
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        reg = <0x7e205000 0x200>;
> +
> +        pmic@4b {
> +            compatible = "mps,mp2629";
> +            reg = <0x4b>;
> +
> +            interrupt-controller;
> +            interrupt-parent = <&gpio2>;
> +            #interrupt-cells = <2>;
> +            interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> +        };
> +    };




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