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SubjectRe: [PATCH v2] dt-bindings: gpu: Convert Samsung Image Rotator to dt-schema
On Thu, Sep 12, 2019 at 06:15:38PM +0200, Maciej Falkowski wrote:
> Convert Samsung Image Rotator to newer dt-schema format.
>
> Signed-off-by: Maciej Falkowski <m.falkowski@samsung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

Just to make it clear, Marek's signed-off should appear for one of
conditions:
- he contributed some source code to your patch,
- he took your patch, rebased, send by himself (not a case here, I
think),
- he contributed significant ideas, although for this there is a
"Co-developed-by" tag.

If someone made just review - add Reviewed-by. If someone suggested the
patch - add Suggested-by.

> ---
> v2:
> - add required properties
> - add proper commit recipients
> ---
> .../bindings/gpu/samsung-rotator.txt | 28 ----------
> .../bindings/gpu/samsung-rotator.yaml | 52 +++++++++++++++++++
> 2 files changed, 52 insertions(+), 28 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/gpu/samsung-rotator.txt
> create mode 100644 Documentation/devicetree/bindings/gpu/samsung-rotator.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.txt b/Documentation/devicetree/bindings/gpu/samsung-rotator.txt
> deleted file mode 100644
> index 3aca2578da0b..000000000000
> --- a/Documentation/devicetree/bindings/gpu/samsung-rotator.txt
> +++ /dev/null
> @@ -1,28 +0,0 @@
> -* Samsung Image Rotator
> -
> -Required properties:
> - - compatible : value should be one of the following:
> - * "samsung,s5pv210-rotator" for Rotator IP in S5PV210
> - * "samsung,exynos4210-rotator" for Rotator IP in Exynos4210
> - * "samsung,exynos4212-rotator" for Rotator IP in Exynos4212/4412
> - * "samsung,exynos5250-rotator" for Rotator IP in Exynos5250
> -
> - - reg : Physical base address of the IP registers and length of memory
> - mapped region.
> -
> - - interrupts : Interrupt specifier for rotator interrupt, according to format
> - specific to interrupt parent.
> -
> - - clocks : Clock specifier for rotator clock, according to generic clock
> - bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)
> -
> - - clock-names : Names of clocks. For exynos rotator, it should be "rotator".
> -
> -Example:
> - rotator@12810000 {
> - compatible = "samsung,exynos4210-rotator";
> - reg = <0x12810000 0x1000>;
> - interrupts = <0 83 0>;
> - clocks = <&clock 278>;
> - clock-names = "rotator";
> - };
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml b/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml
> new file mode 100644
> index 000000000000..96afafe98388
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/samsung-rotator.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpu/samsung-rotator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung Image Rotator

Thanks Maciej for working on this.

I am trying to make the names more consistent:
1. For Exynos bindings:
Samsung Exynos SoC xxx yyy zzz

2. For multiple SoCs (S3C, S5P, Exynos etc):
Samsung SoC xxx yyy zzz

Currently the names are mixture of legacy and new names. It is a
nit-pick but makes all bindings look like a part of bigger effort, not
bunch of patches done by random people. :)

If there are no objections, maybe you could change it to:
Samsung SoC Image Rotator

> +
> +maintainers:
> + - Inki Dae <inki.dae@samsung.com>
> +
> +properties:
> + compatible:
> + enum:
> + - "samsung,s5pv210-rotator" # for Rotator IP in S5PV210
> + - "samsung,exynos4210-rotator" # for Rotator IP in Exynos4210
> + - "samsung,exynos4212-rotator" # for Rotator IP in Exynos4212/4412
> + - "samsung,exynos5250-rotator" # for Rotator IP in Exynos5250

The comments are duplicating the compatible, so skip them.

> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + description: |
> + Clock specifier for rotator clock according to generic clock
> + bindings. (See Documentation/devicetree/bindings/clock/exynos*.txt)

Skip the description. Clocks property is a well-known binding.

> + maxItems: 1
> +
> + clock-names:
> + items:
> + - const: rotator
> + maxItems: 1

I think there is no need to maxItems since all possible items are fixed.

Best regards,
Krzysztof


> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> +
> +examples:
> + - |
> + rotator@12810000 {
> + compatible = "samsung,exynos4210-rotator";
> + reg = <0x12810000 0x1000>;
> + interrupts = <0 83 0>;
> + clocks = <&clock 278>;
> + clock-names = "rotator";
> + };
> +
> --
> 2.17.1
>

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