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Received-SPF: Pass (protection.outlook.com: domain of cixtech.com designates 222.71.101.198 as permitted sender) receiver=protection.outlook.com; client-ip=222.71.101.198; helo=smtprelay.cixcomputing.com; pr=C Received: from smtprelay.cixcomputing.com (222.71.101.198) by TY2PEPF0000AB8A.mail.protection.outlook.com (10.167.253.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.615.4 via Frontend Transport; Fri, 6 Nov 2026 01:35:23 +0000 Received: from ubuntu (unknown [172.20.64.99]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id 00EDF40920E2; Fri, 6 Nov 2026 09:35:21 +0800 (CST) From: Jelly Jia To: vkoul@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, robin.murphy@arm.com, sboyd@kernel.org, bmasney+clk@redhat.com, jbrunet+clk@baylibre.com Cc: devicetree@vger.kernel.org, Frank.Li@kernel.org, cix-kernel-upstream@cixtech.com, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Jelly.Jia@cixtech.com, linux-clk@vger.kernel.org, joakim.zhang@cixtech.com, Krzysztof Kozlowski Subject: [PATCH v3 3/5] dt-bindings: dma: arm,dma-350: Document dma-channel-mask Date: Fri, 6 Nov 2026 09:35:18 +0800 Message-ID: <20261106013520.1134450-4-Jelly.Jia@cixtech.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261106013520.1134450-1-Jelly.Jia@cixtech.com> References: <20261106013520.1134450-1-Jelly.Jia@cixtech.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: TY2PEPF0000AB8A:EE_|SEYPR06MB8310:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: 18f52f39-2158-4fff-21c1-08df3ba63a05 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|36860700016|1800799024|376014|7416014|82310400026|22082099003|18002099003|261021121427099003|56012099006|261009223027099003|261026121527099003|261102123227099003|10067099003|6133799003; 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Allow the standard dma-channel-mask property so firmware can describe which channels Linux may use. DMA-350 implements at most eight channels, so one 32-bit cell is enough; limit the property to a single cell. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Jelly Jia --- Documentation/devicetree/bindings/dma/arm,dma-350.yaml | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml index eab3b31aeba7..59f3b59b47f5 100644 --- a/Documentation/devicetree/bindings/dma/arm,dma-350.yaml +++ b/Documentation/devicetree/bindings/dma/arm,dma-350.yaml @@ -47,6 +47,9 @@ properties: description: Optional reset line, where the integration exposes one. + dma-channel-mask: + maxItems: 1 + required: - compatible - reg -- 2.54.0