linux-kernel - RE: [RFC PATCH 2/8] dt-bindings: mailbox: Add bindings for RPMI shared memory transport

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Message-ID:
 <ZQZPR01MB097924AF0A246677CCA17CDF8A03A@ZQZPR01MB0979.CHNPR01.prod.partner.outlook.cn>
Date: Tue, 24 Dec 2024 02:19:57 +0000
From: Leyfoon Tan <leyfoon.tan@...rfivetech.com>
To: Anup Patel <apatel@...tanamicro.com>, Michael Turquette
	<mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>, Rob Herring
	<robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
	<conor+dt@...nel.org>, Jassi Brar <jassisinghbrar@...il.com>
CC: Palmer Dabbelt <palmer@...belt.com>, Paul Walmsley
	<paul.walmsley@...ive.com>, Sunil V L <sunilvl@...tanamicro.com>, Rahul
 Pathak <rpathak@...tanamicro.com>, Atish Patra <atishp@...shpatra.org>,
	Andrew Jones <ajones@...tanamicro.com>, Anup Patel <anup@...infault.org>,
	"linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [RFC PATCH 2/8] dt-bindings: mailbox: Add bindings for RPMI
 shared memory transport



> -----Original Message-----
> From: Anup Patel <apatel@...tanamicro.com>
> Sent: Monday, December 16, 2024 4:48 PM
> To: Michael Turquette <mturquette@...libre.com>; Stephen Boyd
> <sboyd@...nel.org>; Rob Herring <robh@...nel.org>; Krzysztof Kozlowski
> <krzk+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>; Jassi Brar
> <jassisinghbrar@...il.com>
> Cc: Palmer Dabbelt <palmer@...belt.com>; Paul Walmsley
> <paul.walmsley@...ive.com>; Sunil V L <sunilvl@...tanamicro.com>; Rahul
> Pathak <rpathak@...tanamicro.com>; Leyfoon Tan
> <leyfoon.tan@...rfivetech.com>; Atish Patra <atishp@...shpatra.org>;
> Andrew Jones <ajones@...tanamicro.com>; Anup Patel
> <anup@...infault.org>; linux-clk@...r.kernel.org;
> devicetree@...r.kernel.org; linux-riscv@...ts.infradead.org; linux-
> kernel@...r.kernel.org; Anup Patel <apatel@...tanamicro.com>
> Subject: [RFC PATCH 2/8] dt-bindings: mailbox: Add bindings for RPMI shared
> memory transport
> 
[...]

> +
> +examples:
> +  - |
> +    // Example 1 (RPMI shared memory with only 2 queues):
> +    mailbox@...80000 {
> +        compatible = "riscv,rpmi-shmem-mbox";
> +        reg = <0x00 0x10080000 0x00 0x10000>,
> +              <0x00 0x10090000 0x00 0x10000>,
> +              <0x00 0x100a0000 0x00 0x4>;
> +        reg-names = "a2p-req", "p2a-ack", "db-reg";
> +        msi-parent = <&imsic_mlevel>;
> +        riscv,slot-size = <64>;
> +        #mbox-cells = <1>;
> +    };
> +  - |
> +    // Example 2 (RPMI shared memory with only 4 queues):
> +    mailbox@...01000 {
> +        compatible = "riscv,rpmi-shmem-mbox";
> +        reg = <0x00 0x10001000 0x00 0x800>,
> +              <0x00 0x10001800 0x00 0x800>,
> +              <0x00 0x10002000 0x00 0x800>,
> +              <0x00 0x10002800 0x00 0x800>,
> +              <0x00 0x10003000 0x00 0x4>;
> +        reg-names = "a2p-req", "p2a-ack", "db-reg";

reg has 5 entries, missing 2 reg-names?

> +        msi-parent = <&imsic_mlevel>;
> +        riscv,slot-size = <64>;
> +        riscv,db-mask = <0x00008000>;
> +        riscv,db-value = <0x00008000>;
> +        #mbox-cells = <1>;
> +    };
> --
> 2.43.0

Regards
Ley Foon