On Tue, Sep 24, 2019 at 03:46:14PM +0200, Marek Szyprowski wrote:
> From: Maciej Falkowski <m.falkowski@xxxxxxxxxxx>
>
> Convert Samsung 2D Graphics Accelerator to newer dt-schema format
>
> Signed-off-by: Maciej Falkowski <m.falkowski@xxxxxxxxxxx>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> v2:
> - Added if-then statements for 'clocks' and 'clock-names'
> properties.
>
> Best regards,
> Maciej Falkowski
> ---
> .../devicetree/bindings/gpu/samsung-g2d.txt | 27 -------
> .../devicetree/bindings/gpu/samsung-g2d.yaml | 76 +++++++++++++++++++
> 2 files changed, 76 insertions(+), 27 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/gpu/samsung-g2d.txt
> create mode 100644 Documentation/devicetree/bindings/gpu/samsung-g2d.yaml
>
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
> deleted file mode 100644
> index 1e7959332dbc..000000000000
> --- a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
> +++ /dev/null
> @@ -1,27 +0,0 @@
> -* Samsung 2D Graphics Accelerator
> -
> -Required properties:
> - - compatible : value should be one among the following:
> - (a) "samsung,s5pv210-g2d" for G2D IP present in S5PV210 & Exynos4210 SoC
> - (b) "samsung,exynos4212-g2d" for G2D IP present in Exynos4x12 SoCs
> - (c) "samsung,exynos5250-g2d" for G2D IP present in Exynos5250 SoC
> -
> - - reg : Physical base address of the IP registers and length of memory
> - mapped region.
> -
> - - interrupts : G2D interrupt number to the CPU.
> - - clocks : from common clock binding: handle to G2D clocks.
> - - clock-names : names of clocks listed in clocks property, in the same
> - order, depending on SoC type:
> - - for S5PV210 and Exynos4 based SoCs: "fimg2d" and
> - "sclk_fimg2d"
> - - for Exynos5250 SoC: "fimg2d".
> -
> -Example:
> - g2d@12800000 {
> - compatible = "samsung,s5pv210-g2d";
> - reg = <0x12800000 0x1000>;
> - interrupts = <0 89 0>;
> - clocks = <&clock 177>, <&clock 277>;
> - clock-names = "sclk_fimg2d", "fimg2d";
> - };
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml b/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml
> new file mode 100644
> index 000000000000..5e05e8ccc83f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.yaml
> @@ -0,0 +1,76 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpu/samsung-g2d.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Samsung SoC 2D Graphics Accelerator
> +
> +maintainers:
> + - Inki Dae <inki.dae@xxxxxxxxxxx>
> +
> +properties:
> + compatible:
> + enum:
> + - samsung,s5pv210-g2d # in S5PV210 & Exynos4210 SoC
> + - samsung,exynos4212-g2d # in Exynos4x12 SoCs
> + - samsung,exynos5250-g2d
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
I think it is worth to leave the clocks and clock-names here (could be
empty or with min/max values for number of items). This makes it easy to
find the properties by humans.
Midgard bindings could be used as example.
> +allOf:
> + - if:
> + properties:
> + compatible:
> + contains:
> + const: samsung,exynos5250-g2d
> +
> + then:
> + properties:
> + clocks:
> + items:
> + - description: fimg2d clock
> + clock-names:
> + items:
> + - const: fimg2d
> +
> + - if:
else:
Best regards,
Krzysztof
> + properties:
> + compatible:
> + contains:
> + enum:
> + - samsung,s5pv210-g2d
> + - samsung,exynos4212-g2d
> +
> + then:
> + properties:
> + clocks:
> + items:
> + - description: sclk_fimg2d clock
> + - description: fimg2d clock
> + clock-names:
> + items:
> + - const: sclk_fimg2d
> + - const: fimg2d
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> + - clocks
> + - clock-names
> +
> +examples:
> + - |
> + g2d@12800000 {
> + compatible = "samsung,s5pv210-g2d";
> + reg = <0x12800000 0x1000>;
> + interrupts = <0 89 0>;
> + clocks = <&clock 177>, <&clock 277>;
> + clock-names = "sclk_fimg2d", "fimg2d";
> + };
> +
> --
> 2.17.1
>
>
>
