[PATCH v5 02/13] dt-bindings: Add bindings for peci-aspeed

[Joel Stanley]

On Wed, 12 Jan 2022 at 23:04, Iwona Winiarska <iwona.winiarska at intel.com> wrote:
>
> Add device tree bindings for the peci-aspeed controller driver.
>
> Co-developed-by: Jae Hyun Yoo <jae.hyun.yoo at linux.intel.com>
> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo at linux.intel.com>
> Signed-off-by: Iwona Winiarska <iwona.winiarska at intel.com>

Reviewed-by: Joel Stanley <joel at jms.id.au>

> ---
>  .../devicetree/bindings/peci/peci-aspeed.yaml | 72 +++++++++++++++++++
>  1 file changed, 72 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/peci/peci-aspeed.yaml
>
> diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
> new file mode 100644
> index 000000000000..1e68a801a92a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Aspeed PECI Bus Device Tree Bindings
> +
> +maintainers:
> +  - Iwona Winiarska <iwona.winiarska at intel.com>
> +  - Jae Hyun Yoo <jae.hyun.yoo at linux.intel.com>
> +
> +allOf:
> +  - $ref: peci-controller.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - aspeed,ast2400-peci
> +      - aspeed,ast2500-peci
> +      - aspeed,ast2600-peci
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    description:
> +      Clock source for PECI controller. Should reference the external
> +      oscillator clock.
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  cmd-timeout-ms:
> +    minimum: 1
> +    maximum: 1000
> +    default: 1000
> +
> +  clock-frequency:
> +    description:
> +      The desired operation frequency of PECI controller in Hz.
> +    minimum: 2000
> +    maximum: 2000000
> +    default: 1000000
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - resets
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/ast2600-clock.h>
> +    peci-controller at 1e78b000 {
> +      compatible = "aspeed,ast2600-peci";
> +      reg = <0x1e78b000 0x100>;
> +      interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
> +      clocks = <&syscon ASPEED_CLK_GATE_REF0CLK>;
> +      resets = <&syscon ASPEED_RESET_PECI>;
> +      cmd-timeout-ms = <1000>;
> +      clock-frequency = <1000000>;
> +    };
> +...
> --
> 2.31.1
>