From patchwork Fri Aug 9 10:30:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keguang Zhang via B4 Relay X-Patchwork-Id: 13758676 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2616DBA41; Fri, 9 Aug 2024 10:31:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723199498; cv=none; b=st5/4CdDCJedm2YGnL37hx+lrRoHuNO6FveVHV/PSMbGEDP4qsDFovF6I2c+sYLEwJdyHKnTnpvgII9FoXiPojCaT5u40rDWYPeCdm4uEtQzpOqLAVcdKfP/aeM5LZZm7Hrm1LJSDQXVcX5KXJdFwTYnO1An45VKwtdFs/BBDHI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723199498; c=relaxed/simple; bh=Pyn9R7CbJk7AzCg1pklE2Ub+hkwoAnfgt2o4mUVn1Vk=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=mhLBspRbjT43zhiWtkLhDe4XqcCT7DI7eyEEBtkHfCu5hwzcxBF0NouUM4+0EJeUG21NYODgZJ3bucT2M2bRllqeTVS44ZqKBYAFBEls/TgLbnVuHGdTPXNkNVHEUm4wkRBBh+/MeXuJ4rM4HZgmpjtJmc4JKmR0xtHpJ3LNr3M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CD8tFFN6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="CD8tFFN6" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9DC01C32782; Fri, 9 Aug 2024 10:31:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723199497; bh=Pyn9R7CbJk7AzCg1pklE2Ub+hkwoAnfgt2o4mUVn1Vk=; h=From:Subject:Date:To:Cc:Reply-To:From; b=CD8tFFN6LHhrM2NTgk7YtGS/7v28M7++MeGWSrBbfHhbOs7ekHy7a3aD/kurb9sPP ZB6zYgs/gw4r6F07CC2jb4OFymVmPGgxYYePxegI+tmPcqJjCAdRfb5yKI0POOgxNO UYpy5gy8wEoux5S/V8A6qvYVNX7Yg5cSPJkl67itGNsqADXV/gfI2HDcR7gE3Gp/cG grX/fSHmbZy3EnxhVf5UhCyYY+jO8xsriyI695SvDgAIPDAQldFwcxN9ikhx238dDL HrazhnJMSXtM3PfZInjNVHxoOtT4Cxp2DklHUO7om94qHgxgmhzKtdLsO54e0WEVZ3 KDmwXHFCTgZ6Q== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 898DAC3DA4A; Fri, 9 Aug 2024 10:31:37 +0000 (UTC) From: Keguang Zhang via B4 Relay Subject: [PATCH v12 0/2] Add support for Loongson1 APB DMA Date: Fri, 09 Aug 2024 18:30:57 +0800 Message-Id: <20240809-loongson1-dma-v12-0-d9469a4a6b85@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=H4sIAOHvtWYC/2XPTU7DMBAF4KtUWeNqZlz/seIeiIVrj1OLJkZJi YCqd8fpghZ3OZa+957P3cxT5rl73py7iZc85zLWA+lp04WDH3sWOdaHjoAkIoE4ljL2cxlRxME L1NInVgbs3nXVfEyc8tc18PWt3mkqgzgdJvZ/KeDIIqFTcqtop8EKFO/cf9ay7c9a+dIPPh+3o Qxr4iHPpzJ9Xxcues1dU3YgUTdbFi1AOIhMQYZQW+6C1i2LudPkWm2qlibula2bIqtW25vWYFp tq07OOYqkDClotbvTKFvtqtZoMVEwkQO3GuHGDT18HGHdjvsETnmdvH7wePMW6MFj9VZJR1KZu ON/6y+Xyy/5SKoLJwIAAA== To: Keguang Zhang , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley 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 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1723199495; l=3921; i=keguang.zhang@gmail.com; s=20231129; h=from:subject:message-id; bh=Pyn9R7CbJk7AzCg1pklE2Ub+hkwoAnfgt2o4mUVn1Vk=; b=y23OmK3eYx48ro7Gjodr0rifohygfq4gBEa5U9XhQFBKIN3fjy5zJ6PtyYCqK6BE827HWNxqh FRD+loTt6c6DWn0sVu7mcehRF80/YCEI6g2yJCH+SBrAmVBSo3tx55n 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 v12: - Delete superfluous blank lines in the examples section. - Move the call to devm_request_irq() into ls1x_dma_alloc_chan_resources() to use dma_chan_name() as a parameter. - Move the call to devm_free_irq() into ls1x_dma_free_chan_resources() accordingly. - Rename ls1x_dma_alloc_llis() to ls1x_dma_prep_lli(). - Merge ls1x_dma_free_lli() into ls1x_dma_free_desc(). - Add ls1x_dma_synchronize(). - Fix the error handling of ls1x_dma_probe(). - Some minor fixes and improvements. - Link to v11: https://lore.kernel.org/r/20240802-loongson1-dma-v11-0-85392357d4e0@gmail.com Changes in v11: - Use guard notation to acquire the spinlock. - Fix the build error of LS1X_DMA_LLI_ALIGNMENT. - Some minor fixes. - Link to v10: https://lore.kernel.org/r/20240726-loongson1-dma-v10-0-31bf095a6fa6@gmail.com 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 | 65 ++ drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/loongson1-apb-dma.c | 660 +++++++++++++++++++++ 4 files changed, 735 insertions(+) --- base-commit: 61c01d2e181adfba02fe09764f9fca1de2be0dbe change-id: 20231120-loongson1-dma-163afe5708b9 Best regards,