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Wed, 15 Jul 2026 15:42:58 +0800 (CST) Message-ID: Date: Wed, 15 Jul 2026 15:42:58 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v7 0/2] dmaengine: arm-dma350: handle shared channel IRQ wiring on sky1 To: fugang.duan@cixtech.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, vkoul@kernel.org, ychuang3@nuvoton.com, schung@nuvoton.com, robin.murphy@arm.com, Frank.Li@kernel.org Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, cix-kernel-upstream@cixtech.com, linux-arm-kernel@lists.infradead.org References: <20260521072924.3000282-1-jun.guo@cixtech.com> Content-Language: en-US From: Jun Guo In-Reply-To: <20260521072924.3000282-1-jun.guo@cixtech.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66CB:EE_|KL1PR06MB6395:EE_ X-MS-Office365-Filtering-Correlation-Id: 8df89c79-7b6b-40bf-6d86-08dee244b26f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|36860700016|376014|7416014|1800799024|82310400026|3023799007|5023799004|56012099006|22082099003|18002099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: TkpIvUY6LcaYe3q5X28T3b2QdX7zdtt9CCbOs1bPp18vYvuwKJVMtwpZMjccFaHpbsWc+F3Ce0wvbY3+vrGzlAQMrFfjyA9lbYx82bq4UY7ya5zFpJeePpBHMAF+PzMV3/iHzSJ9c/ECYSua19zVa4gJzx5f1QBnXxRqZL6u+RbJz2LqPDp/gNNGMSjJUE47WUBNru4cSF7yYAjHvgprmH/pMxYS1WESpPmq5LyazWYRU7hZQTLek3Pdq9mw/UIodhAor/zNgcZfLsF2YgSQga+TxyHinOSqTkFvHLYJgtYB8fekFu7G720uTNS7yl/1/ePhiBPII9bKQCrx5cdyKbk/Ko4kaXGkeLB/wn9OR6+fgA4daRUWM7mWCeoWNPTIErud/CaDxG/sGj8s5Up6DJgNMXPOJAKMP4HEqy9eK/vldm9wWQoDLM15upHcUFqI X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Jul 2026 07:43:01.0744 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8df89c79-7b6b-40bf-6d86-08dee244b26f X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66CB.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: KL1PR06MB6395 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260715_004324_035922_DFF79C6D X-CRM114-Status: GOOD ( 19.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi all, Gentle ping on this patch series. I understand everyone is busy, but would appreciate any feedback or review comments when you have a moment. On 5/21/2026 3:29 PM, Jun Guo wrote: > This series updates DMA-350 support for the SKY1 integration where all > DMA > channel interrupt outputs are wired to the same GIC SPI. > > Patch 1 enables DMANSECCTRL.INTREN_ANYCHINTR in the driver so > per-channel > interrupt status is propagated even when channels share one parent IRQ > line. > > Patch 2 adds the SKY1 DMA-350 DT node and describes the channel > interrupt > sources using 8 channel entries, while all entries map to the same SPI. > > Tested on CIX SKY1 with dmatest: > % echo 2000 > /sys/module/dmatest/parameters/timeout > % echo 1 > /sys/module/dmatest/parameters/iterations > % echo "" > /sys/module/dmatest/parameters/channel > % echo 1 > /sys/module/dmatest/parameters/run > > Changes in v7: > - Modify the commit log format for the driver patch. > > Changes in v6: > - Drop the dt-binding update and keep the existing 8-channel interrupt > schema. > - Simplify driver change to a minimal fix: > enable DMANSECCTRL.INTREN_ANYCHINTR. > - Update SKY1 DT node to describe 8 channel interrupt entries mapped > to one SPI. > > Changes in v5: > - Fix the formatting issue in the AI tag. > - Remove the unnecessary "cix,sky1-dma-350". > > Changes in v4: > - Reword binding text to align with kernel style. > - Revise the AI attribution to the standard format. > - Remove redundant links from the commit log. > > Changes in v3: > - Rework binding compatible description to match generic-first model. > - Keep interrupts schema support for both 1-IRQ and 8-IRQ topologies. > - Drop SoC match-data dependency for IRQ mode selection. > - Detect IRQ topology via platform_irq_count() in probe path. > - Refactor IRQ handling into a shared channel handler. > - Enable DMANSECCTRL.INTREN_ANYCHINTR only in combined IRQ mode. > > Changes in v2: > - Update to kernel standards, enhance patch description, and refactor > driver to use match data for hardware differentiation instead of > compatible strings. > > Jun Guo (2): > dmaengine: arm-dma350: enable ANYCH interrupt for shared IRQ wiring > arm64: dts: cix: add sky1 DMA-350 node with channel IRQ entries > > arch/arm64/boot/dts/cix/sky1.dtsi | 14 ++++++++++++++ > drivers/dma/arm-dma350.c | 9 +++++++++ > 2 files changed, 23 insertions(+) >