From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (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 D91AB4C66; Mon, 20 May 2024 15:47:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716220072; cv=none; b=s5qD8Jhw8BDO9edzH4Vh+TJre2I3dGk/+DC2F+JIZXghXbO1mZID1cwdpxjaeOXUAg+GvEe6QpCR2wNpDk8DjopBg1aDKqWJYmF/Yqmf6VG/dr0Mric8N6pkqZ3eTx/aRWz0KyMkpYOT9ndzBH4816Y1Q3TDG98xZPq3fEbqXjU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716220072; c=relaxed/simple; bh=dIcfYS3DCP/xjxi7EfvzQOb0zFFG/+yZtonMvUoMFk0=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=sXzxWvhf+N+tHl5bmVV3Vb7BYXutXRHmxqQc3McaDB+H605xB9iS6yDVc04YUavhd3k6bNYtdYEjMo+V0MNF5EY+DqpEcqNlESMb1SeqGgXNWS/pEADIxa0g2ZvlA+hf7auBWueNJoDF6mgktftG6J7p1Iqw6+kfU194YSN8yPA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=etSTpdh6; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="etSTpdh6" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44KEFpPL001175; Mon, 20 May 2024 17:47:34 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= message-id:date:mime-version:subject:to:cc:references:from :in-reply-to:content-type:content-transfer-encoding; s= selector1; bh=ePwcetJBFPJNqN1k/NmMRCLaktJ9x89GqxfjwisczSg=; b=et STpdh6HCBaAQOn5r1LuJJ+p7H73HYH3NLdfWnSXwDPaXzF6veWaax/FHxotV7Hz9 Iug5T35OXjY5QEIjG8yDhn+T1eg1FAmHxRjRHGGccSpX7MxbXucbRK7lvcOHWkX8 4XWmGmrFyJBQRySmILY2ZDQYkGvG8RlVLktS/TmPgL9akwyhbvZBVlzfyRRolKlS Hu+I4MPHbqguL4x908H5dv0hPnHQt6PdxxFSEhutUtTrbQc6zYOCoTihdDO1/URN SmrQABJC3q5Z/SH1Yk4hl5voLKWBm3I+YWRMyxScil4saD8BZ+FOGPl6SqacQgZD vXiSrqMQ73KNZa44njAw== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 3y75w05yb0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 20 May 2024 17:47:33 +0200 (MEST) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id B4F714002D; Mon, 20 May 2024 17:47:29 +0200 (CEST) Received: from Webmail-eu.st.com (shfdag1node3.st.com [10.75.129.71]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id DDB9E21D3B0; Mon, 20 May 2024 17:46:43 +0200 (CEST) Received: from [10.252.8.132] (10.252.8.132) by SHFDAG1NODE3.st.com (10.75.129.71) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Mon, 20 May 2024 17:46:43 +0200 Message-ID: <61b68534-700d-489c-a5e0-029e46e03b1f@foss.st.com> Date: Mon, 20 May 2024 17:46:42 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 00/12] Introduce STM32 DMA3 support To: Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue CC: , , , , , References: <20240520154213.689699-1-amelie.delaunay@foss.st.com> Content-Language: en-US From: Amelie Delaunay In-Reply-To: <20240520154213.689699-1-amelie.delaunay@foss.st.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SHFCAS1NODE1.st.com (10.75.129.72) To SHFDAG1NODE3.st.com (10.75.129.71) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-20_05,2024-05-17_03,2024-05-17_01 Drop this incomplete series, issue with mail server. On 5/20/24 17:42, Amelie Delaunay wrote: > STM32 DMA3 is a direct memory access controller with different features > depending on its hardware configuration. It is either called LPDMA (Low > Power), GPDMA (General Purpose) or HPDMA (High Performance), and it can > be found in new STM32 MCUs and MPUs. > > In STM32MP25 SoC [1], 3 HPDMAs and 1 LPDMA are embedded. Only HPDMAs are > used by Linux. > > Before adding this new driver, this series gathers existing STM32 DMA > drivers and bindings under stm32/ subdirectory and adds an entry in > MAINTAINERS file. > > To ease review, the initial "dmaengine: Add STM32 DMA3 support" has been > split into functionnalities. > Patches 6 to 9 can be squashed into patch 5. > > Patch 10 has already been proposed [2], the API is now used in stm32-dma3 > driver. Indeed, STM32 DMA3 channels can be individually reserved either > because they are secure, or dedicated to another CPU. These channels are > not registered in dmaengine, so id is not incremented, but, using the new > API to specify the channel name, channel name matches the name in the > Reference Manual and ease requesting a channel thanks to its name. > > [1] https://www.st.com/resource/en/reference_manual/rm0457-stm32mp25xx-advanced-armbased-3264bit-mpus-stmicroelectronics.pdf > [2] https://lore.kernel.org/lkml/20231213174021.3074759-1-amelie.delaunay@foss.st.com/ > > v3: > - address Rob's remarks about st,stm32-dma3.yaml > (wrap at 80, remove useless '|') > - address Frank's remarks about patch 5: improve commit message and > ensure descriptors availability before starting the channel > > v2: > - fix reference in spi/st,stm32-spi.yaml with an updated description of the > dmas property to reflect the new path of STM32 DMA controllers bindings. > - address Rob's remarks about st,stm32-dma3.yaml > - address Vinod's remarks about stm32-dma3.c > > Amelie Delaunay (12): > dt-bindings: dma: New directory for STM32 DMA controllers bindings > dmaengine: stm32: New directory for STM32 DMA controllers drivers > MAINTAINERS: Add entry for STM32 DMA controllers drivers and > documentation > dt-bindings: dma: Document STM32 DMA3 controller bindings > dmaengine: Add STM32 DMA3 support > dmaengine: stm32-dma3: add DMA_CYCLIC capability > dmaengine: stm32-dma3: add DMA_MEMCPY capability > dmaengine: stm32-dma3: add device_pause and device_resume ops > dmaengine: stm32-dma3: improve residue granularity > dmaengine: add channel device name to channel registration > dmaengine: stm32-dma3: defer channel registration to specify channel > name > arm64: dts: st: add HPDMA nodes on stm32mp251 > > .../dma/{ => stm32}/st,stm32-dma.yaml | 4 +- > .../bindings/dma/stm32/st,stm32-dma3.yaml | 135 ++ > .../dma/{ => stm32}/st,stm32-dmamux.yaml | 4 +- > .../dma/{ => stm32}/st,stm32-mdma.yaml | 4 +- > .../devicetree/bindings/spi/st,stm32-spi.yaml | 2 +- > MAINTAINERS | 9 + > arch/arm64/boot/dts/st/stm32mp251.dtsi | 69 + > drivers/dma/Kconfig | 34 +- > drivers/dma/Makefile | 4 +- > drivers/dma/dmaengine.c | 16 +- > drivers/dma/idxd/dma.c | 2 +- > drivers/dma/stm32/Kconfig | 47 + > drivers/dma/stm32/Makefile | 5 + > drivers/dma/{ => stm32}/stm32-dma.c | 2 +- > drivers/dma/stm32/stm32-dma3.c | 1847 +++++++++++++++++ > drivers/dma/{ => stm32}/stm32-dmamux.c | 0 > drivers/dma/{ => stm32}/stm32-mdma.c | 2 +- > include/linux/dmaengine.h | 3 +- > 18 files changed, 2137 insertions(+), 52 deletions(-) > rename Documentation/devicetree/bindings/dma/{ => stm32}/st,stm32-dma.yaml (97%) > create mode 100644 Documentation/devicetree/bindings/dma/stm32/st,stm32-dma3.yaml > rename Documentation/devicetree/bindings/dma/{ => stm32}/st,stm32-dmamux.yaml (89%) > rename Documentation/devicetree/bindings/dma/{ => stm32}/st,stm32-mdma.yaml (96%) > create mode 100644 drivers/dma/stm32/Kconfig > create mode 100644 drivers/dma/stm32/Makefile > rename drivers/dma/{ => stm32}/stm32-dma.c (99%) > create mode 100644 drivers/dma/stm32/stm32-dma3.c > rename drivers/dma/{ => stm32}/stm32-dmamux.c (100%) > rename drivers/dma/{ => stm32}/stm32-mdma.c (99%) >