Re: [PATCH v1 12/30] dt-bindings: reset: Add starfive,jh7110-reset bindings

Rob Herring
2022-09-29T18:44:47Z

On Fri, Sep 30, 2022 at 01:51:47AM +0800, Hal Feng wrote:
> Add bindings for the reset controller on the JH7110 RISC-V
> SoC by StarFive Technology Ltd.
>
> Signed-off-by: Hal Feng <hal.feng@linux.starfivetech.com>
> ---
> .../bindings/reset/starfive,jh7110-reset.yaml | 54 +++++++++++++++++++
> 1 file changed, 54 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/reset/starfive,jh7110-reset.yaml
>
> diff --git a/Documentation/devicetree/bindings/reset/starfive,jh7110-reset.yaml b/Documentation/devicetree/bindings/reset/starfive,jh7110-reset.yaml
> new file mode 100644
> index 000000000000..bb0010c200f9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/starfive,jh7110-reset.yaml
> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/reset/starfive,jh7110-reset.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 SoC Reset Controller Device Tree Bindings
> +
> +maintainers:
> + - Emil Renner Berthing <kernel@esmil.dk>
> + - Hal Feng <hal.feng@linux.starfivetech.com>
> +
> +properties:
> + compatible:
> + enum:
> + - starfive,jh7110-reset

'reg' needed? Is this a sub-block of something else?

> +
> + "#reset-cells":
> + const: 1
> +
> + starfive,assert-offset:
> + description: Offset of the first ASSERT register
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> + starfive,status-offset:
> + description: Offset of the first STATUS register
> + $ref: /schemas/types.yaml#/definitions/uint32

These can't be implied from the compatible string?

> +
> + starfive,nr-resets:
> + description: Number of reset signals
> + $ref: /schemas/types.yaml#/definitions/uint32

Why do you need this? Most bindings don't. If just to validate 'resets'
args, then don't.

> +
> +required:
> + - compatible
> + - "#reset-cells"
> + - starfive,assert-offset
> + - starfive,status-offset
> + - starfive,nr-resets
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/reset/starfive-jh7110.h>
> +
> + syscrg_rst: reset-controller@13020000 {
> + compatible = "starfive,jh7110-reset";
> + #reset-cells = <1>;
> + starfive,assert-offset = <0x2F8>;
> + starfive,status-offset= <0x308>;
> + starfive,nr-resets = <JH7110_SYSRST_END>;
> + };
> +
> +...
> --
> 2.17.1
>
>