From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1121B397332; Tue, 29 Sep 2026 05:40:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790660450; cv=none; b=pkv5IMAmLxoeOKifRl8VAvtlNJEWGKT5rrFJiM6FUJf8W0zVfRAy2jbr/+O8PJ89olCVMokdPPzg53uhrz3eudsQWkXGLlCOz8kLAz2W1uKZHA29fe7snY6fwbiWyC1dgaiqGVOULfwO1Xn9xr3b5RMN4M3e3DPsNRtaFrC/dOc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790660450; c=relaxed/simple; bh=Jvh9Whl1In4SUVRCPtGO1qryBBcjpLgJ8JLqul1VEtw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=VE2eR1gVYR3IwsavRHY6YrHhXSSfjwhhc2+8ZUd7Kz+gxsfKcStVi03GOusDvaDytrYjahgNUJaImZb/Y0tiL4sWSzJbx15f37fIwt6lSn6dwRD9NtDYf5w4gEVCFr+CnmKVoyac+OFbljyscFU8F9tCCwxjZQ8T2drquoHHi3w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TjWVifi5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TjWVifi5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4F2B1F000FF; Tue, 29 Sep 2026 05:40:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790660448; bh=EulcM3Sez+szsCjpIOBGwG5tjCkG7m4d88gy5OahXvI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=TjWVifi50PlhyMwHlCn+/EPVWx27OtgK+/1gaxTsveJKzQf/197wj5N1N0Ka/xo8R NlVCpjlnX1m502N9OcsE8jGrPQwj9RZV+loFmPoW1YDM4nlsqzBDfXlfHi0mVppWFn 9PzIUJl/KVw4TZ+pkrU3/b1fmqIkk5Ws9lVI42N0uQNml6dFBlkykZXdGognVBl6rY v8c7XxE2uJZ0VgbcqsLZ38To98Cy1u0Ex5jMy27/EqCxgFhVdPQ9yGNSol4Zg2dFfd qxNtjH4csoJtHc6nLycXLfAL/Gs1L7/19KLnL8uMIuh7BhzxLkBk3x967t8irQBroi Jpl4iZKdug4vQ== Message-ID: <33499600-5df7-48fb-a2ac-5a703df8dc2d@kernel.org> Date: Tue, 29 Sep 2026 07:40:42 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 3/6] media: dt-bindings: Add Amlogic V4L2 video decoder To: Zhentao Guo Cc: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org References: <20260924-b4-s4-vdec-upstream-v10-0-1289303a58a4@amlogic.com> <20260924-b4-s4-vdec-upstream-v10-3-1289303a58a4@amlogic.com> <20260928-efficient-secret-manatee-2fcca6@quoll> <7fe35ef7-e894-4137-975a-9a5f621a8156@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 29/09/2026 04:59, Zhentao Guo wrote: > Hi Krzysztof, > >> On Thu, Sep 24, 2026 at 03:55:10PM +0800, Zhentao Guo wrote: >>> Add bindings for Amlogic hardware decoder accelerator. >>> >>> Signed-off-by: Zhentao Guo >>> --- >>> .../devicetree/bindings/media/amlogic,s4-vdec.yaml | 114 +++++++++++++++++++++ >>> 1 file changed, 114 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml >>> new file mode 100644 >>> index 000000000000..751043c3d9cc >>> --- /dev/null >>> +++ b/Documentation/devicetree/bindings/media/amlogic,s4-vdec.yaml >>> @@ -0,0 +1,114 @@ >>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) >>> +# Copyright (C) 2025 Amlogic, Inc. All rights reserved >>> +%YAML 1.2 >>> +--- >>> +$id: http://devicetree.org/schemas/media/amlogic,s4-vdec.yaml# >>> +$schema: http://devicetree.org/meta-schemas/core.yaml# >>> + >>> +title: Amlogic Video Decode Accelerator >>> + >>> +maintainers: >>> + - Zhentao Guo >>> + >>> +description: >>> + The Video Decoder Accelerator present on Amlogic SOCs. >>> + It supports stateless h264 decoding. >>> + >>> +properties: >>> + compatible: >>> + const: amlogic,s4-vdec >>> + >>> + reg: >>> + minItems: 2 >> What is happening here? Previous version was different. > > maxItems: 2 implies that a single items is also allowed,but the hardware actually requires at least two register regions (dos Since when? > and dmc) to work, so minItems:2 makes sense here. > > The same applies to |power-domain| and |interrupts| below. At least 2 > power-domains to make the hardware work, and at least 2 interrupts > needed for the two sub-cores. Best regards, Krzysztof