From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CB95A17D340; Thu, 24 Oct 2024 09:42:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729762975; cv=none; b=NO5F2ItLb0oDFMqRDe1pTAedxZNTPBIBIEUddlDus5Vo+yEBqIdeXRk0EcZEdY/01WJgTo9I+cCxo/abLqGZ/nAxnnnoPvIbyZZAYTwzUnginkyI3wczd9cJXoe6l1pHkRwB1HmsoxaGR+g48WBeXnsU4XU0FQHbWYJ7Xh7pylU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729762975; c=relaxed/simple; bh=pVzAa+gkBK0ucsjVKni29QO63BQ7dWJBXHd6dsdvK5w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=q8ChLY8Cc6IAw/r3B+2reVZ1RgSBG8pxbiHtQZ+6oE8bAWJDteGrd7MUiN8QwrnaU9x0M4vcmKyO3hWJxQ1o0/7uihkOMwGSt7bognVT0Nb988jHDdd3eVpQQ/XDbZ+8uJjTzXh2hAjviSwe3jJuv6CtAG7ROQV8hcQ+AEtZM6k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Oh4w0+zL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Oh4w0+zL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BA47C4CECC; Thu, 24 Oct 2024 09:42:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729762975; bh=pVzAa+gkBK0ucsjVKni29QO63BQ7dWJBXHd6dsdvK5w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Oh4w0+zL9BhrSvdmuLuW3v/pPSkjUHcCQefraJ/bbMcn5xsxVA7WvJ11BxXPQ2b0O 2a6DLQ+lOrdIDZZMBKfZkZFTGVgm242oPnl8y1yMlV1HMqmmcH2Yg3BF+X3jh6eqm8 am9jTYcGGvSBDTPSDKlBCAVZJ5KOWQYkgkfeTI+PEqmcTQUH5VD+M0GNrddbI3GEn+ rvU+VVHnO7yYayXGVFKf9SRGK4PVn/HoqubNVyFZSSo9UJs1dwye80KZEmn1pmz1Kw vJHGI2/IhcXfdBGqdD+ZcmyrWzZ5mrY+c5DpXMj24mfd6ftTjJYaBglr9pfejAth0R UFFdNVvVPmEJw== Message-ID: Date: Thu, 24 Oct 2024 11:42:48 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] dt-bindings: mailbox: mediatek: Add apu-mailbox document To: "Karl.Li" , Jassi Brar , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Chungying Lu , Project_Global_Chrome_Upstream_Group@mediatek.com References: <20241024092608.431581-1-karl.li@mediatek.com> <20241024092608.431581-2-karl.li@mediatek.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 24/10/2024 11:25, Karl.Li wrote: > From: Karl Li > > Add apu-mailbox dt-binding document. We see from the diff. What we see is what is APU and this hardware? A nit, subject: drop second/last, redundant "document". The "dt-bindings" prefix is already stating that these are bindings so a document. See also: https://elixir.bootlin.com/linux/v6.7-rc8/source/Documentation/devicetree/bindings/submitting-patches.rst#L18 > > Signed-off-by: Karl Li > --- > .../mailbox/mediatek,apu-mailbox.yaml | 55 +++++++++++++++++++ > 1 file changed, 55 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml > > diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml > new file mode 100644 > index 000000000000..cb4530799bef > --- /dev/null > +++ b/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml > @@ -0,0 +1,55 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mailbox/mediatek,apu-mailbox.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: MediaTek APU mailbox What is APU? > + > +maintainers: > + - Karl Li > + > +description: > + The MediaTek APU-Mailbox facilitates communication with the > + APU microcontroller. Within the MediaTek APU subsystem, a > + message passing mechanism is built on top of the mailbox system. > + The mailbox only has limited space for each message. The firmware > + expects the message header from the mailbox, while the message body > + is passed through some fixed shared memory. > + > +properties: > + compatible: > + enum: > + - mediatek,mt8188-apu-mailbox > + - mediatek,mt8196-apu-mailbox > + > + "#mbox-cells": > + const: 1 > + description: > + The cell describe which channel the device will use. > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - "#mbox-cells" > + - reg > + - interrupts > + > +additionalProperties: false > + > +examples: > + - | > + #include > + #include > + > + apu_mailbox: mailbox@4c200000 { Drop unused label. > + compatible = "mediatek,mt8196-apu-mailbox"; > + reg = <0 0x4c200000 0 0xfffff>; > + interrupts = ; 4 cells? No warnings on this? > + #mbox-cells = <1>; > + }; Best regards, Krzysztof