linux-kernel - Re: [PATCH v2 09/10] dt-bindings: mfd: samsung,s5m8767: convert to dtschema

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Message-ID: <bf26dd28-cf5e-bc09-0b99-6666f9d73d69@canonical.com>
Date:   Fri, 1 Oct 2021 13:18:27 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v2 09/10] dt-bindings: mfd: samsung,s5m8767: convert to
 dtschema

On 01/10/2021 11:41, Krzysztof Kozlowski wrote:
> Convert the MFD part of Samsung S5M8767 PMIC to DT schema format.
> Previously the bindings were mostly in mfd/samsung,sec-core.txt.
> 
> Since all of bindings for Samsung S2M and S5M family of PMICs were
> converted from mfd/samsung,sec-core.txt to respective dtschema file,
> remove the former one.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ---
>  .../bindings/mfd/samsung,s5m8767.yaml         | 269 ++++++++++++++++++
>  .../bindings/mfd/samsung,sec-core.txt         |  86 ------
>  MAINTAINERS                                   |   2 +-
>  3 files changed, 270 insertions(+), 87 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml
>  delete mode 100644 Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml b/Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml
> new file mode 100644
> index 000000000000..b2529a48c890
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/samsung,s5m8767.yaml
> @@ -0,0 +1,269 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/samsung,s5m8767.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung S5M8767 Power Management IC
> +
> +maintainers:
> +  - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> +
> +description: |
> +  This is a part of device tree bindings for S2M and S5M family of Power
> +  Management IC (PMIC).
> +
> +  The Samsung S5M8767 is a Power Management IC which includes voltage
> +  and current regulators, RTC, clock outputs and other sub-blocks.
> +
> +properties:
> +  compatible:
> +    const: samsung,s5m8767-pmic
> +
> +  clocks:
> +    $ref: ../clock/samsung,s2mps11.yaml
> +    description:
> +      Child node describing clock provider.
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  reg:
> +    maxItems: 1
> +
> +  regulators:
> +    $ref: ../regulator/samsung,s5m8767.yaml
> +    description:
> +      List of child nodes that specify the regulators.
> +
> +  s5m8767,pmic-buck2-dvs-voltage:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 8
> +    maxItems: 8
> +    description: |
> +      A set of 8 voltage values in micro-volt (uV) units for buck2 when
> +      changing voltage using gpio dvs.
> +
> +  s5m8767,pmic-buck3-dvs-voltage:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 8
> +    maxItems: 8
> +    description: |
> +      A set of 8 voltage values in micro-volt (uV) units for buck3 when
> +      changing voltage using gpio dvs.
> +
> +  s5m8767,pmic-buck4-dvs-voltage:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +    minItems: 8
> +    maxItems: 8
> +    description: |
> +      A set of 8 voltage values in micro-volt (uV) units for buck4 when
> +      changing voltage using gpio dvs.
> +
> +  s5m8767,pmic-buck-ds-gpios:
> +    minItems: 3
> +    maxItems: 3
> +    description: |
> +      GPIO specifiers for three host gpio's used for selecting GPIO DVS lines.
> +      It is one-to-one mapped to dvs gpio lines.
> +
> +  s5m8767,pmic-buck2-uses-gpio-dvs:
> +    type: boolean
> +    description: buck2 can be controlled by gpio dvs.
> +
> +  s5m8767,pmic-buck3-uses-gpio-dvs:
> +    type: boolean
> +    description: buck3 can be controlled by gpio dvs.
> +
> +  s5m8767,pmic-buck4-uses-gpio-dvs:
> +    type: boolean
> +    description: buck4 can be controlled by gpio dvs.
> +
> +  s5m8767,pmic-buck-default-dvs-idx:
> +    $ref: /schemas/types.yaml#/definitions/uint32-array

There is a bug here - it's just uint32.

I will send a v3 later (feel free to review earlier, so I can accumulate
tags/comments).

> +    minimum: 0
> +    maximum: 7
> +    default: 0
> +    description: |
> +      Default voltage setting selected from the possible 8 options selectable
> +      by the dvs gpios. The value of this property should be between 0 and 7.
> +      If not specified or if out of range, the default value of this property
> +      is set to 0.
> +
Best regards,
Krzysztof