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 2676B15ECD7; Mon, 27 Oct 2025 13:05:14 +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=1761570314; cv=none; b=FFiwwSjEWb0yUBVztCEhuosd2OzsslqtPfrItxknqxqmM4YTNPALlzRPtSKur9rdYpkVZU+n7WJkgnXfV4X2V2YdnsSVj/EajiuMbf4kVRjcT6Pex0UV9L9j9wIsMtNF32mikBL1vSH3/JtC4wiAvym4gHSjA9zm/ECWZlWO7jc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761570314; c=relaxed/simple; bh=TuHEym0B6rKM3/jxEON5qYqiU4gHzQV0bZqW68U9z38=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=j3T1W5Fb5/hgwRDoyvVh696eKzUZlI5Jl6m+ByutRoJwiHBVatYAi9y6W6m7b8rijLbodAaLRrqJIbFc4ofmeLvIzM1Y5waEwwOxXklqrwNgLiEoI25W8EDnEgnZs87RsisF8jwjryhT6K8vXzBxxcNEtr1cc7hYdA3+ikvr5n8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BEiQnkdu; 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="BEiQnkdu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4889C4CEF1; Mon, 27 Oct 2025 13:05:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761570314; bh=TuHEym0B6rKM3/jxEON5qYqiU4gHzQV0bZqW68U9z38=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=BEiQnkdu8BCMG3ckTNZo7brBJgg8rYBk1aCqjp9Nooq04D9gr6uY3Zu+ND8hF4MeO /oWq2gymN1M8J7bqbxhV/l/1zwdlvu6KveSWgmOebbKpP2BRnX0NbXRVLZA7apuPXB Ce59oUD7xB4R+JES7NBy1m7yauJqUQ8E+bkIhetDB6s+mEMrMv2XO/YbX0IN9rRtpn 9eRd+UOX0M+Lyss3qD9oX5c9uYyvpsd4NSBJfUFapgqBbuwUUI5ddXy+ishgcDTUqP KPLPeTSAf11b7f3jt19g7jxqHhHmSZDtUBMYCeuqxEnYAl91wnWYMrRAf3doF7+iNG 94CLWI22Pbsdw== Message-ID: Date: Mon, 27 Oct 2025 14:05:08 +0100 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: vdec: Add binding document of Amlogic decoder accelerator To: zhentao.guo@amlogic.com, Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org References: <20251027-b4-s4-vdec-upstream-v1-0-620401813b5d@amlogic.com> <20251027-b4-s4-vdec-upstream-v1-1-620401813b5d@amlogic.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 27/10/2025 06:42, Zhentao Guo via B4 Relay wrote: > From: Zhentao Guo > > Add dt-binding of the Amlogic hardware decoder accelerator. Please use subject prefixes matching the subsystem. You can get them for example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory your patch is touching. For bindings, the preferred subjects are explained here: https://www.kernel.org/doc/html/latest/devicetree/bindings/submitting-patches.html#i-for-patch-submitters A nit, subject: drop second/last, redundant "binding document for". The "dt-bindings" prefix is already stating that these are bindings. See also: https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18 > > Signed-off-by: Zhentao Guo > --- > .../bindings/media/amlogic,vcodec-dec.yaml | 96 ++++++++++++++++++++++ > 1 file changed, 96 insertions(+) > > diff --git a/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml b/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml > new file mode 100644 > index 000000000000..6cea8af72639 > --- /dev/null > +++ b/Documentation/devicetree/bindings/media/amlogic,vcodec-dec.yaml Filename matching compatible. > @@ -0,0 +1,96 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +# Copyright (C) 2025 Amlogic, Inc. All rights reserved > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/media/amlogic,vcodec-dec.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Amlogic Video Decode Accelerator > + > +maintainers: > + - Zhentao Guo > + > +description: | Do not need '|' unless you need to preserve formatting. > + The Video Decoder Accelerator present on Amlogic SOCs. > + It supports stateless h264 decoding. > + > +properties: > + compatible: > + const: amlogic,s4-vcodec-dec > + > + reg: > + maxItems: 2 > + > + reg-names: > + items: > + - const: dosbus > + - const: dmcbus Is "bus" really name of this in datasheet? > + > + interrupts: > + maxItems: 3 > + > + interrupt-names: > + items: > + - const: mailbox_0 > + - const: mailbox_1 > + - const: mailbox_2 Useless names, so just drop interrupt-names property. > + > + clocks: > + maxItems: 3 > + > + clock-names: > + items: > + - const: vdec > + - const: clk_vdec_mux > + - const: clk_hevcf_mux > + > + power-domains: > + maxItems: 2 > + > + power-domain-names: > + items: > + - const: pwrc-vdec Drop pwrc > + - const: pwrc-hevc Drop pwrc Missing iommus. I really doubt hardware works without IOMMU. Best regards, Krzysztof