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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Icenowy Zheng <uwu@icenowy.me>, Drew Fustini <fustini@kernel.org>,
	Guo Ren <guoren@kernel.org>, Fu Wei <wefu@redhat.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Jassi Brar <jassisinghbrar@gmail.com>,
	Michal Wilczynski <m.wilczynski@samsung.com>
Cc: Han Gao <rabenda.cn@gmail.com>,
	Inochi Amaoto <inochiama@gmail.com>, Yao Zi <ziyao@disroot.org>,
	linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 2/4] dt-bindings: firmware: thead,th1520-aon: add a mailbox name for SBI
Date: Thu, 14 Aug 2025 09:18:44 +0200	[thread overview]
Message-ID: <d0d4c9e7-c350-4996-a53b-09b13bdb9409@kernel.org> (raw)
In-Reply-To: <20250814070757.2267325-3-uwu@icenowy.me>

On 14/08/2025 09:07, Icenowy Zheng wrote:
> The SBI firmware might want to communicate to the AON firmware too.
> 
> Add a mbox-name item to allow to allocate a mailbox for SBI.
> 
> Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
> ---
>  .../devicetree/bindings/firmware/thead,th1520-aon.yaml     | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/thead,th1520-aon.yaml b/Documentation/devicetree/bindings/firmware/thead,th1520-aon.yaml
> index 3365124c7fd47..555465f4aab4e 100644
> --- a/Documentation/devicetree/bindings/firmware/thead,th1520-aon.yaml
> +++ b/Documentation/devicetree/bindings/firmware/thead,th1520-aon.yaml
> @@ -26,11 +26,12 @@ properties:
>      const: thead,th1520-aon
>  
>    mboxes:
> -    maxItems: 1
> +    maxItems: 2


ABI break without explanation why ("allow" is not a reason to affect
ABI) and its impact.


Best regards,
Krzysztof

  reply	other threads:[~2025-08-14  7:18 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-14  7:07 [RFC PATCH 0/4] riscv: dts: thead: th1520: Add mailbox for SBI-to-AON comm Icenowy Zheng
2025-08-14  7:07 ` [RFC PATCH 1/4] dt-bindings: mailbox: thead,th1520-mbox: retrofit for other mailboxes Icenowy Zheng
2025-08-14  7:18   ` Krzysztof Kozlowski
2025-08-14  7:34     ` Icenowy Zheng
2025-08-14  7:48       ` Krzysztof Kozlowski
2025-08-14  8:02         ` Icenowy Zheng
2025-08-14  7:07 ` [RFC PATCH 2/4] dt-bindings: firmware: thead,th1520-aon: add a mailbox name for SBI Icenowy Zheng
2025-08-14  7:18   ` Krzysztof Kozlowski [this message]
2025-08-14  7:30     ` Icenowy Zheng
2025-08-14  7:49       ` Krzysztof Kozlowski
2025-08-14  8:04         ` Icenowy Zheng
2025-08-15  6:14           ` Krzysztof Kozlowski
2025-08-14  7:07 ` [RFC PATCH 3/4] riscv: dts: thead: th1520: add reserved node for C910R mailbox Icenowy Zheng
2025-08-14  7:07 ` [RFC PATCH 4/4] riscv: dts: thead: th1520: add mailbox channel for SBI-to-AON comm Icenowy Zheng

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