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dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amlogic.com; Received: from KL1PR03MB5521.apcprd03.prod.outlook.com (2603:1096:820:51::12) by SI6PR03MB8707.apcprd03.prod.outlook.com (2603:1096:4:253::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.451.24; Tue, 29 Sep 2026 05:58:00 +0000 Received: from KL1PR03MB5521.apcprd03.prod.outlook.com ([fe80::f12b:85e:f95c:191e]) by KL1PR03MB5521.apcprd03.prod.outlook.com ([fe80::f12b:85e:f95c:191e%3]) with mapi id 15.21.0451.022; Tue, 29 Sep 2026 05:58:00 +0000 Message-ID: <59541a34-eba9-4699-ba19-69e7b5b1525a@amlogic.com> Date: Tue, 29 Sep 2026 13:57:56 +0800 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v10 3/6] media: dt-bindings: Add Amlogic V4L2 video decoder To: Krzysztof Kozlowski 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> <33499600-5df7-48fb-a2ac-5a703df8dc2d@kernel.org> From: Zhentao Guo In-Reply-To: <33499600-5df7-48fb-a2ac-5a703df8dc2d@kernel.org> X-ClientProxiedBy: SEWP216CA0051.KORP216.PROD.OUTLOOK.COM (2603:1096:101:2bd::12) To KL1PR03MB5521.apcprd03.prod.outlook.com (2603:1096:820:51::12) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: KL1PR03MB5521:EE_|SI6PR03MB8707:EE_ X-MS-Office365-Filtering-Correlation-Id: d78a7dbc-3707-4b2d-b811-08df1dee9e01 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|366016|23010399003|10067099003|56012099006|11063799006|3023799007|4143699003|22082099003|18002099003; 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charset="us-ascii"; Format="flowed" Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Hi Krzysztof, > 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? It should have been minItems:2 ever since v1,I must admit that this is a long-standing mistake. >> 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 Best regards, Zhentao _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic