On Wed, Feb 26, 2020 at 06:08:58PM +0000, Andre Przywara wrote:
> Convert the Calxeda DDR memory controller binding to DT schema format
> using json-schema.
> Although this technically covers the whole DRAM controller, the
> intention to use it only for error reporting and mapping fault addresses
> to DRAM chips.
>
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
> ---
> .../memory-controllers/calxeda-ddr-ctrlr.txt | 16 --------
> .../memory-controllers/calxeda-ddr-ctrlr.yaml | 41 +++++++++++++++++++
> 2 files changed, 41 insertions(+), 16 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml
>
> diff --git a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
> deleted file mode 100644
> index 049675944b78..000000000000
> --- a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -Calxeda DDR memory controller
> -
> -Properties:
> -- compatible : Should be:
> - - "calxeda,hb-ddr-ctrl" for ECX-1000
> - - "calxeda,ecx-2000-ddr-ctrl" for ECX-2000
> -- reg : Address and size for DDR controller registers.
> -- interrupts : Interrupt for DDR controller.
> -
> -Example:
> -
> - memory-controller@fff00000 {
> - compatible = "calxeda,hb-ddr-ctrl";
> - reg = <0xfff00000 0x1000>;
> - interrupts = <0 91 4>;
> - };
> diff --git a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml
> new file mode 100644
> index 000000000000..c5153127e722
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/memory-controllers/calxeda-ddr-ctrlr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Calxeda DDR memory controller binding
> +
> +description: |
> + The Calxeda DDR memory controller is initialised and programmed by the
> + firmware, but an OS might want to read its registers for error reporting
> + purposes and to learn about the DRAM topology.
> +
> +maintainers:
> + - Andre Przywara <andre.przywara@xxxxxxx>
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - calxeda,hb-ddr-ctrl
> + - calxeda,ecx-2000-ddr-ctrl
You don't need the items here, you can just have the enum directly
(like you did in your other schemas).
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
And you're probably missing additionalProperties too (and in other
schemas).
Maxime
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