linux-kernel - Re: [PATCH v1 03/12] dt-bindings: pinctrl: add i.MXRT1170 pinctrl Documentation

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Message-ID: <6d69f9cd-d4e3-8327-9c60-3cb0b1d3f70e@kernel.org>
Date:   Sun, 27 Mar 2022 21:30:49 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Jesse Taube <mr.bossman075@...il.com>, linux-imx@....com
Cc:     robh+dt@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, aisheng.dong@....com, stefan@...er.ch,
        linus.walleij@...aro.org, daniel.lezcano@...aro.org,
        tglx@...utronix.de, arnd@...db.de, olof@...om.net, soc@...nel.org,
        linux@...linux.org.uk, abel.vesa@....com, dev@...xeye.de,
        marcel.ziswiler@...adex.com, tharvey@...eworks.com,
        leoyang.li@....com, sebastian.reichel@...labora.com,
        cniedermaier@...electronics.com, clin@...e.com,
        giulio.benetti@...ettiengineering.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH v1 03/12] dt-bindings: pinctrl: add i.MXRT1170 pinctrl
 Documentation

On 27/03/2022 21:14, Jesse Taube wrote:
> 
> 
> On 3/27/22 15:08, Krzysztof Kozlowski wrote:
>> On 26/03/2022 15:43, Jesse Taube wrote:
>>> Add i.MXRT1170 pinctrl binding Documentation
>>>
>>> Cc: Giulio Benetti <giulio.benetti@...ettiengineering.com>
>>> Signed-off-by: Jesse Taube <Mr.Bossman075@...il.com>
>>> ---
>>>   .../bindings/pinctrl/fsl,imxrt1170.yaml       | 77 +++++++++++++++++++
>>>   1 file changed, 77 insertions(+)
>>>   create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imxrt1170.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1170.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1170.yaml
>>> new file mode 100644
>>> index 000000000000..2e880b3e537c
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1170.yaml
>>> @@ -0,0 +1,77 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/pinctrl/fsl,imxrt1170.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Freescale i.MXRT1170 IOMUX Controller
>>> +
>>> +maintainers:
>>> +  - Giulio Benetti <giulio.benetti@...ettiengineering.com>
>>> +  - Jesse Taube <Mr.Bossman075@...il.com>
>>> +
>>> +description:
>>> +  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
>>> +  for common binding part and usage.
>>> +
>>> +properties:
>>> +  compatible:
>>> +    const: fsl,imxrt1170-iomuxc
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +# Client device subnode's properties
>>> +patternProperties:
>>> +  'grp$':
>>> +    type: object
>>> +    description:
>>> +      Pinctrl node's client devices use subnodes for desired pin configuration.
>>> +      Client device subnodes use below standard properties.
>>> +
>>> +    properties:
>>> +      fsl,pins:
>>> +        description:
>>> +          each entry consists of 6 integers and represents the mux and config
>>> +          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
>>> +          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
>>> +          be found in <arch/arm/boot/dts/imxrt1170-pinfunc.h>. The last
>>> +          integer CONFIG is the pad setting value like pull-up on this pin. Please
>>> +          refer to i.MXRT1170 Reference Manual for detailed CONFIG settings.
>>> +        $ref: /schemas/types.yaml#/definitions/uint32-matrix
>>> +        items:
>>> +          items:
>>> +            - description: |
>>> +                "mux_reg" indicates the offset of mux register.
>>> +            - description: |
>>> +                "conf_reg" indicates the offset of pad configuration register.
>>> +            - description: |
>>> +                "input_reg" indicates the offset of select input register.
>>> +            - description: |
>>> +                "mux_val" indicates the mux value to be applied.
>>> +            - description: |
>>> +                "input_val" indicates the select input value to be applied.
>>> +            - description: |
>>> +                "pad_setting" indicates the pad configuration value to be applied.
>>> +    required:
>>> +      - fsl,pins
>>> +
>>> +    additionalProperties: false
>>> +
>>> +required:
>>> +  - compatible
>>> +  - reg
>>
>> You miss pinctrl.yaml, why?
> In the file name? Because I forgot for the fsl,imxrt1050.yaml, I can 
> change for both files.
>>

No, you miss here inclusion of pinctrl.yaml schema.

Best regards,
Krzysztof