linux-kernel - Re: [PATCH 14/21] dt-bindings: pinctrl: adi,adsp-pinctrl: add bindings

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Message-ID: <20240913220942.GC878799-robh@kernel.org>
Date: Fri, 13 Sep 2024 17:09:42 -0500
From: Rob Herring <robh@...nel.org>
To: Arturs Artamonovs <arturs.artamonovs@...log.com>
Cc: Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Greg Malysa <greg.malysa@...esys.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Utsav Agarwal <Utsav.Agarwal@...log.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andi Shyti <andi.shyti@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Olof Johansson <olof@...om.net>, soc@...nel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
	linux-gpio@...r.kernel.org, linux-i2c@...r.kernel.org,
	linux-serial@...r.kernel.org, adsp-linux@...log.com,
	Nathan Barrett-Morrison <nathan.morrison@...esys.com>
Subject: Re: [PATCH 14/21] dt-bindings: pinctrl: adi,adsp-pinctrl: add
 bindings

On Thu, Sep 12, 2024 at 07:24:59PM +0100, Arturs Artamonovs wrote:
> Add PINCTRL driver bindings.
> 
> Signed-off-by: Arturs Artamonovs <Arturs.Artamonovs@...log.com>
> Co-developed-by: Nathan Barrett-Morrison <nathan.morrison@...esys.com>
> Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@...esys.com>
> Co-developed-by: Greg Malysa <greg.malysa@...esys.com>
> Signed-off-by: Greg Malysa <greg.malysa@...esys.com>
> ---
>  .../bindings/pinctrl/adi,adsp-pinctrl.yaml         | 83 ++++++++++++++++++++++
>  include/dt-bindings/pinctrl/adi-adsp.h             | 19 +++++
>  2 files changed, 102 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..073442b4f680bf536f631b4c17a1d3195c2233d6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/adi,adsp-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices Pinmuxing Control for SC5XX Processor Family
> +
> +maintainers:
> +  - Arturs Artamonovs <arturs.artamonovs@...log.com>
> +  - Utsav Agarwal <Utsav.Agarwal@...log.com>
> +
> +description: |
> +  Pinmuxing Control Driver for Configuring Processor Pins/Pads
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,adsp-pinctrl
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  "adi,port-sizes":

Don't need quotes.

> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    maxItems: 9
> +    description: Space delimited integer list denoting number of pins per port
> +      Ports A-I exist, so this is up to 9 items long

No constraints on the entries?

> +
> +  "adi,no-drive-strength":
> +    type: boolean
> +    description: Indicate missing drive strength registers
> +
> +  "adi,no-pull-up-down":
> +    type: boolean
> +    description: Indicate missing pull up/down enable registers
> +
> +patternProperties:
> +  '-pins$':
> +    type: object
> +    additionalProperties: false
> +
> +    properties:
> +      pins:
> +        type: object
> +        description: |
> +          A pinctrl node should contain a pin property, specifying the actual
> +          pins to use.
> +
> +        properties:
> +          pinmux:
> +            $ref: /schemas/types.yaml#/definitions/uint32-array
> +            description: |
> +              pinmux is used to specify which of the available functionalities
> +              for a given pin are actually used.
> +
> +        additionalProperties: false
> +
> +required:
> +  - compatible
> +  - "#address-cells"
> +  - "#size-cells"
> +  - reg
> +  - "adi,port-sizes"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    pinctrl0: pinctrl@...04600 {
> +      compatible = "adi,adsp-pinctrl";
> +      #address-cells = <1>;
> +      #size-cells = <1>;
> +      reg = <0x31004600 0x400>;
> +      adi,port-sizes = <16 16 16 16 16 16 16 16 7>;
> +    };
> +
> diff --git a/include/dt-bindings/pinctrl/adi-adsp.h b/include/dt-bindings/pinctrl/adi-adsp.h
> new file mode 100644
> index 0000000000000000000000000000000000000000..dc5b86a0d9190acdd242a6ba4972c3aac7a61821
> --- /dev/null
> +++ b/include/dt-bindings/pinctrl/adi-adsp.h
> @@ -0,0 +1,19 @@
> +/* SPDX-License-Identifier: GPL-2.0*/

Missing space                         ^

New bindings should be dual licensed.


> +/*
> + * Macros for populating pinmux properties on the pincontroller
> + *
> + * Copyright 2022-2024 - Analog Devices Inc.
> + */
> +
> +#ifndef DT_BINDINGS_PINCTRL_ADI_ADSP_H
> +#define DT_BINDINGS_PINCTRL_ADI_ADSP_H
> +
> +#define ADI_ADSP_PINFUNC_GPIO     0
> +#define ADI_ADSP_PINFUNC_ALT0     1
> +#define ADI_ADSP_PINFUNC_ALT1     2
> +#define ADI_ADSP_PINFUNC_ALT2     3
> +#define ADI_ADSP_PINFUNC_ALT3     4
> +
> +#define ADI_ADSP_PINMUX(port, pin, func) ((((port - 'A')*16 + pin) << 8) + func)
> +
> +#endif
> 
> -- 
> 2.25.1
>