linux-kernel - Re: [PATCH v3] dt-bindings: gpu: Convert Samsung Image Scaler to dt-schema

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Message-ID: <CAJKOXPdbDropa0iL6YP4Fb4aFSEXQ87thOk5mN+cSCU=i+ZwUw@mail.gmail.com>
Date:   Fri, 27 Sep 2019 16:59:44 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Maciej Falkowski <m.falkowski@...sung.com>
Cc:     devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-samsung-soc@...r.kernel.org" 
        <linux-samsung-soc@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Inki Dae <inki.dae@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [PATCH v3] dt-bindings: gpu: Convert Samsung Image Scaler to dt-schema

On Fri, 27 Sep 2019 at 16:33, Marek Szyprowski <m.szyprowski@...sung.com> wrote:
>
> From: Maciej Falkowski <m.falkowski@...sung.com>
>
> Convert Samsung Image Scaler to newer dt-schema format.
>
> Signed-off-by: Maciej Falkowski <m.falkowski@...sung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
> ---
> v3:
> - Fixed description of 'clocks' property:
> rather than 'mscl clock', 'pclk clock'
> - Added empty line within if-else statement
> - Added 'additionalProperties: false'
> - Listed all missing 'properties' in properties scope
>
> Best regards,
> Maciej Falkowski
> ---
>  .../bindings/gpu/samsung-scaler.txt           | 27 -------
>  .../bindings/gpu/samsung-scaler.yaml          | 81 +++++++++++++++++++
>  2 files changed, 81 insertions(+), 27 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/gpu/samsung-scaler.txt
>  create mode 100644 Documentation/devicetree/bindings/gpu/samsung-scaler.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-scaler.txt b/Documentation/devicetree/bindings/gpu/samsung-scaler.txt
> deleted file mode 100644
> index 9c3d98105dfd..000000000000
> --- a/Documentation/devicetree/bindings/gpu/samsung-scaler.txt
> +++ /dev/null
> @@ -1,27 +0,0 @@
> -* Samsung Exynos Image Scaler
> -
> -Required properties:
> -  - compatible : value should be one of the following:
> -       (a) "samsung,exynos5420-scaler" for Scaler IP in Exynos5420
> -       (b) "samsung,exynos5433-scaler" for Scaler IP in Exynos5433
> -
> -  - reg : Physical base address of the IP registers and length of memory
> -         mapped region.
> -
> -  - interrupts : Interrupt specifier for scaler interrupt, according to format
> -                specific to interrupt parent.
> -
> -  - clocks : Clock specifier for scaler clock, according to generic clock
> -            bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)
> -
> -  - clock-names : Names of clocks. For exynos scaler, it should be "mscl"
> -                 on 5420 and "pclk", "aclk" and "aclk_xiu" on 5433.
> -
> -Example:
> -       scaler@...00000 {
> -               compatible = "samsung,exynos5420-scaler";
> -               reg = <0x12800000 0x1294>;
> -               interrupts = <0 220 IRQ_TYPE_LEVEL_HIGH>;
> -               clocks = <&clock CLK_MSCL0>;
> -               clock-names = "mscl";
> -       };
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml b/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml
> new file mode 100644
> index 000000000000..5317ac64426a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/samsung-scaler.yaml
> @@ -0,0 +1,81 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpu/samsung-scaler.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung Exynos SoC Image Scaler
> +
> +maintainers:
> +  - Inki Dae <inki.dae@...sung.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - samsung,exynos5420-scaler
> +      - samsung,exynos5433-scaler
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks: {}
> +  clock-names: {}
> +  iommus: {}
> +  power-domains: {}
> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        const: samsung,exynos5420-scaler
> +
> +then:
> +  properties:
> +    clocks:
> +      items:
> +        - description: mscl clock
> +
> +    clock-names:
> +      items:
> +        - const: mscl
> +
> +else:
> +  properties:
> +    clocks:
> +      items:
> +        - description: pclk clock
> +        - description: aclk clock
> +        - description: aclk_xiu clock
> +
> +    clock-names:
> +      items:
> +        - const: pclk
> +        - const: aclk
> +        - const: aclk_xiu
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/exynos5420.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    scaler@...00000 {
> +        compatible = "samsung,exynos5420-scaler";
> +        reg = <0x12800000 0x1294>;
> +        interrupts = <GIC_SPI 220 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&clock CLK_MSCL0>;
> +        clock-names = "mscl";
> +    };
> +
> +...

You have some left-overs at the end. With cleaning them:
Reviewed-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof