Re: [PATCH v2 3/3] dt-bindings: iio: accel: add dt-binding schema for msa311 accel driver

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On Wed, 25 May 2022 18:32:45 +0000
Dmitry Rokosov <DDRokosov@xxxxxxxxxxxxxx> wrote:

> Hello Jonathan and Rob,
> 
> I didn't change two places which you mentioned in the v1 review, please
> find my comments below.
> 
> On Wed, May 25, 2022 at 06:15:33PM +0000, Dmitry Rokosov wrote:
> 
> > +  interrupt-names:
> > +    const: irq  
> I stay interrupt-names node here, because otherwise dt_binding_check
> command shows such a warning:
> 
> ====
>   CHECK   Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: accelerometer@62: 'interrupt-names' does not match any of the regexes: 'pinctrl-[0-9]+'
> ====
> 
> I can't delete this node from the example as well, because it's required for
> msa311 dts i2c irq declaration.

Sorry, you've lost me - what breaks if you drop it from the example?
I'd expect to see no interrupt-names being documented or in the example.

> 
> Please help me to resolve this problem properly if possible. If we can
> ignore such warning I'll delete interrupt-names in the next patchset's
> version.

We can't ignore the warning, so this comes down to what am I missing with
the need for it in the example...

> 
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    i2c {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +  
> Properties #address-cells and #size-cells are still located in the
> schema example, because otherwise dt_binding_check raises the below 
> warnings if we delete these properties:

They should be there for the i2c node, (as they are required for an i2c bus master
node) but you had them documented as being in the msa311 node.  If it's
not in the
accelerometer@62 {

}

section of the example documetnation doesn't belong on this file (it will be
elsewhere). 

The request is to drop the documentation of them (as we are documenting
the msa311 part of the binding only).  They should indeed still be there
in the example.

Jonathan



> 
> =====
>   DTC     Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dts:27.17-30: Warning (reg_format): /example-0/i2c/accelerometer@62:reg: property has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (pci_device_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (pci_device_bus_num): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (simple_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dts:24.13-32.11: Warning (i2c_bus_bridge): /example-0/i2c: incorrect #address-cells for I2C bus
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dts:24.13-32.11: Warning (i2c_bus_bridge): /example-0/i2c: incorrect #size-cells for I2C bus
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (i2c_bus_reg): Failed prerequisite 'i2c_bus_bridge'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (spi_bus_reg): Failed prerequisite 'reg_format'
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dts:25.30-31.15: Warning (avoid_default_addr_size): /example-0/i2c/accelerometer@62: Relying on default #address-cells value
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dts:25.30-31.15: Warning (avoid_default_addr_size): /example-0/i2c/accelerometer@62: Relying on default #size-cells value
> Documentation/devicetree/bindings/iio/accel/memsensing,msa311.example.dt.yaml: Warning (unique_unit_address_if_enabled): Failed prerequisite 'avoid_default_addr_size'
> =====
> 
> What is best way to resolve such issues without providing #address-cells
> and #size-cells values?
> 




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