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Fri, 23 Oct 2026 09:30:19 +0000 Received: from ubuntu (unknown [172.20.64.99]) by smtprelay.cixcomputing.com (Postfix) with ESMTPSA id D610C4102B40; Fri, 23 Oct 2026 17:30:17 +0800 (CST) From: Jelly Jia To: vkoul@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, robin.murphy@arm.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 Subject: [PATCH v4 0/5] dmaengine: arm-dma350: Add slave support and Sky1 integration Date: Fri, 23 Oct 2026 17:30:12 +0800 Message-ID: <20261023093017.3248454-1-Jelly.Jia@cixtech.com> X-Mailer: git-send-email 2.55.0 X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG1PEPF000082E1:EE_|SEZPR06MB5221:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: e684b4b6-0be5-4681-6807-08df30e8410e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700016|23010399003|376014|1800799024|7416014|6133799003|18002099003|10067099003|56012099006|261009223027099003|261021121427099003|261021123027099003|261022075727099003|261022105027099003|3023799007; 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X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Hello, This series adds scatter-gather and cyclic slave transfer support to the Arm DMA-350 driver, then describes the clock, reset and DMA address view of the CIX Sky1 FCH integration. Patch 1 fixes the source-trigger bit. Patch 2 adds peripheral transfers with descriptor-owned resource mappings, coherent linked commands and hardware-based residue reporting. Patches 3 and 4 document and handle optional integration clocks and resets. Patch 5 describes the FCH DMA address windows and adds its bus clock. The controller nodes use arm,dma-350 in this revision. The driver changes use standard integration resources and introduce no CIX-specific register programming. The companion AUDSS interrupt-path series builds on this one and manages the AUDSS interrupt gates in the CRU driver. Changes since v3: - Merge command-list synchronization into the slave/cyclic patch. Use descriptor-owned peripheral mappings, a coherent command pool and stable residue sampling; also handle little-endian commands, valid DMA address zero and maxburst in both directions. (Sashiko, v1-v3.) - Keep clocks and resets optional and move allOf after required. (Krzysztof.) Use a deasserted reset rather than a reset pulse. (Sashiko, v3.) - Describe DMA address windows with dma-ranges and omit memory-region from this series. (Rob.) - Move AUDSS and its CRU-owned interrupt gates to the companion series, keeping CRU register accesses out of the DMA driver. (Conor's device separation comments.) - Poll STOPCMD with a bounded timeout and retain IRQ and callback cleanup on timeout as best-effort teardown. - Keep patch 1 unchanged and retain Frank's Reviewed-by. Link: https://lore.kernel.org/r/20261012084155.2547480-1-Jelly.Jia@cixtech.com Signed-off-by: Jelly Jia Jelly Jia (5): dmaengine: arm-dma350: Fix source trigger bit dmaengine: arm-dma350: Add slave and cyclic transfer support dt-bindings: dma: arm,dma-350: Document optional clocks and resets dmaengine: arm-dma350: Support integration clocks and resets arm64: dts: cix: Describe the Sky1 FCH DMA-350 integration .../devicetree/bindings/dma/arm,dma-350.yaml | 16 +- arch/arm64/boot/dts/cix/sky1.dtsi | 36 +- drivers/dma/arm-dma350.c | 771 +++++++++++++++++- 3 files changed, 778 insertions(+), 45 deletions(-) base-commit: cee9395acd8043be0644b25c34bfa86623f2b935 -- 2.54.0