linux-kernel - Re: [PATCH 1/3] dt-bindings: mailbox: add Sophgo cv18x SoCs mailbox

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Message-ID:
 <IA1PR20MB49531E9C016A91E52F5D59C4BBCE2@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Wed, 19 Jun 2024 06:33:35 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Yuntao Dai <d1581209858@...e.com>, jassisinghbrar@...il.com, 
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	unicorn_wang@...look.com, inochiama@...look.com, paul.walmsley@...ive.com, 
	palmer@...belt.com, aou@...s.berkeley.edu
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 1/3] dt-bindings: mailbox: add Sophgo cv18x SoCs mailbox

On Tue, Jun 18, 2024 at 11:12:33PM GMT, Yuntao Dai wrote:
> Add devicetree bindings documentation for Sophgo cv18x SoCs mailbox
> 
> Signed-off-by: Yuntao Dai <d1581209858@...e.com>
> ---
>  .../mailbox/sophgo,cv1800b-mailbox.yaml       | 75 +++++++++++++++++++
>  1 file changed, 75 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mailbox/sophgo,cv1800b-mailbox.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mailbox/sophgo,cv1800b-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/sophgo,cv1800b-mailbox.yaml
> new file mode 100644
> index 000000000..e1868aaf2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mailbox/sophgo,cv1800b-mailbox.yaml
> @@ -0,0 +1,75 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mailbox/sophgo,cv1800b-mailbox.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sophgo cv1800b mailbox controller
> +
> +maintainers:
> +  - Yuntao Dai <d1581209858@...e.com>
> +
> +description:
> +  The Sophgo cv18x SoCs mailbox has 8 channels and 8 bytes per channel for
> +  different processors. Any processer can write data in a channel, and
> +  set co-responding register to raise interrupt to notice another processor,
> +  and it is allowed to send data to itself.
> +  Sophgo cv18x SoCs has 3 processors and numbered as
> +  <1> C906L
> +  <2> C906B
> +  <3> 8051
> +
> +properties:
> +  compatible:
> +    enum:
> +      - sophgo,cv1800b-mailbox

"sophgo,cv1800-mailbox" please.

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  interrupt-names:
> +    const: mailbox
> +
> +  recvid:
> +    maxItems: 1
> +    description:
> +      This cell indicates the mailbox controller is running on which processor
> +
> +  sendto:
> +    maxItems: 1
> +    description:
> +      This cell indicates the message sends to which processor
> +
> +
> +  "#mbox-cells":
> +    const: 1
> +    description:
> +      This cell indicates which channel is used
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - recvid
> +  - sendto
> +  - "#mbox-cells"
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    mailbox: mailbox@...0000 {
> +        compatible = "sophgo,cv1800b-mailbox";
> +        reg = <0x01900000 0x1000>;
> +        interrupts = <101 IRQ_TYPE_LEVEL_HIGH>;
> +        interrupt-names = "mailbox";
> +        interrupt-parent = <&plic>;
> +        recvid = <1>;
> +        sendto = <2>;
> +        #mbox-cells = <1>;
> +    };
> -- 
> 2.17.1
>