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Fri, 26 Jul 2024 13:07:31 +0000 (UTC) From: Keguang Zhang via B4 Relay Subject: [PATCH v10 0/2] Add support for Loongson1 APB DMA Date: Fri, 26 Jul 2024 21:06:48 +0800 Message-Id: <20240726-loongson1-dma-v10-0-31bf095a6fa6@gmail.com> Precedence: bulk X-Mailing-List: linux-mips@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAGifo2YC/13OTU7DMBAF4KtUXuPIM67/WHEPxCK1J4lFEyO7R ECVu+N0AZGXM9L33ruzQjlSYc+nO8u0xhLTUg8QTyfmp34ZicdQHwwFSgAU/JrSMpa0AA9zz0H LfiBlhL04Vs1HpiF+PQJf3+o95DTz25Sp/0sRDi0gOCU7hWctLAf+TuNnLet+9sqXce7jtfNp3 hOnWG4pfz8WrnrP3VPOQoJutqyaC+5EIPTS+9pyCNq3rOag0bXaVC1NuChbNwVSrbb/WgvTalv 14JzDgMqgEq12Bw2y1a5qDRYG9CaQp6Petu0XRxnnsacBAAA= To: Keguang Zhang , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krzysztof Kozlowski Cc: linux-mips@vger.kernel.org, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley , Jiaxun Yang X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1721999250; l=3092; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=o2zx3o5hVHzdjVgk8ltvnYkXMU43duXbPFt5gvBbsu0=; b=T6wAI6PvcFTCfefJZNNBmUR4tLx2a1DrXnbf/80aDFRgQIvyjh438gbtDn8sSvUFJ37/vpbLh YNjMOHuEFnQA+xmq6Vkk0O1gZKsq/oO1u/u1DNwwQhGD0EdoiIHSRjF X-Developer-Key: i=keguang.zhang@gmail.com; a=ed25519; pk=FMKGj/JgKll/MgClpNZ3frIIogsh5e5r8CeW2mr+WLs= X-Endpoint-Received: by B4 Relay for keguang.zhang@gmail.com/20231129 with auth_id=102 X-Original-From: Keguang Zhang Reply-To: keguang.zhang@gmail.com Add the driver and dt-binding document for Loongson1 APB DMA. --- Changes in v10: - Implement the hwdescs by link list to eliminate the limitation of the desc number. - Add the prefix 'LS1X_' for all registers and their bits. - Drop the macros: chan_readl() and chan_writel(). - Use %pad for printing a dma_addr_t type. - Some minor fixes. - Link to v9: https://lore.kernel.org/r/20240613-loongson1-dma-v9-0-6181f2c7dece@gmail.com Changes in v9: - Fix all the errors and warnings when building with W=1 and C=1 - Link to v8: https://lore.kernel.org/r/20240607-loongson1-dma-v8-0-f9992d257250@gmail.com Changes in v8: - Change 'interrupts' property to an items list - Link to v7: https://lore.kernel.org/r/20240329-loongson1-dma-v7-0-37db58608de5@gmail.com Changes in v7: - Change the comptible to 'loongson,ls1*-apbdma' (suggested by Huacai Chen) - Update the title and description part accordingly - Rename the file to loongson,ls1b-apbdma.yaml - Add a compatible string for LS1A - Delete minItems of 'interrupts' - Change patterns of 'interrupt-names' to const - Rename the file to loongson1-apb-dma.c to keep the consistency - Update Kconfig and Makefile accordingly - Link to v6: https://lore.kernel.org/r/20240316-loongson1-dma-v6-0-90de2c3cc928@gmail.com Changes in v6: - Change the compatible to the fallback - Implement .device_prep_dma_cyclic for Loongson1 sound driver, as well as .device_pause and .device_resume. - Set the limitation LS1X_DMA_MAX_DESC and put all descriptors into one page to save memory - Move dma_pool_zalloc() into ls1x_dma_alloc_desc() - Drop dma_slave_config structure - Use .remove_new instead of .remove - Use KBUILD_MODNAME for the driver name - Improve the debug information - Some minor fixes Changes in v5: - Add the dt-binding document - Add DT support - Use DT information instead of platform data - Use chan_id of struct dma_chan instead of own id - Use of_dma_xlate_by_chan_id() instead of ls1x_dma_filter() - Update the author information to my official name Changes in v4: - Use dma_slave_map to find the proper channel. - Explicitly call devm_request_irq() and tasklet_kill(). - Fix namespace issue. - Some minor fixes and cleanups. Changes in v3: - Rename ls1x_dma_filter_fn to ls1x_dma_filter. Changes in v2: - Change the config from 'DMA_LOONGSON1' to 'LOONGSON1_DMA', - and rearrange it in alphabetical order in Kconfig and Makefile. - Fix comment style. --- Keguang Zhang (2): dt-bindings: dma: Add Loongson-1 APB DMA dmaengine: Loongson1: Add Loongson-1 APB DMA driver .../bindings/dma/loongson,ls1b-apbdma.yaml | 67 ++ drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/loongson1-apb-dma.c | 675 +++++++++++++++++++++ 4 files changed, 752 insertions(+) --- base-commit: 668d33c9ff922c4590c58754ab064aaf53c387dd change-id: 20231120-loongson1-dma-163afe5708b9 Best regards,