From patchwork Mon Jan 27 10:21:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Charan Pedumuru X-Patchwork-Id: 13951187 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 273E7C02188 for ; Mon, 27 Jan 2025 10:24:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:CC:To:Message-ID: Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=xcx9rvLFQazm7qAnyf8KcGXDj5AWr7Jk73R2WBXbI5M=; b=YXEhQuQgGmUnbd+rQ83V5XUqVp 0/9OSBCtjinPx0gqxBl3XaK6+05hf5YOAfFkydohgScRnjIV7DPbJ6Ur/FqgixJfzZ9MSAnXDtIE/ bH/GfOe8KT81biSUtdgFTWNnZfmR+a7RK/4cMZYKnXVb2S7Ga+Wu5azi7kS0DjmnVcBUYMnn/ooKp FXMoq5GFZO2ho8rZOj+uNcp+ALl5cFUtP0dcSG9oiEohH5v3+4spFZ2Ec28LvKA2vj+sr3oB/QLqy xZDd5sSV+y3aDVkY//dFwNE5/PyW9GifeaQT9VJRynOvBDsRlPEzHRnm/5lnzJ/w6beYqmTtLr1WQ wJzO64Bg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tcMHm-000000027S3-3IUZ; Mon, 27 Jan 2025 10:24:06 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tcMGR-000000027HY-3pDo for linux-arm-kernel@lists.infradead.org; Mon, 27 Jan 2025 10:22:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1737973363; x=1769509363; h=from:date:subject:mime-version:content-transfer-encoding: message-id:to:cc; bh=7+Qct7BeymG7lOqPogQ8tjt4CwnzfX9+dQChIt/gR5o=; b=BxLyEPxqs7B+aHNnhPjzQkwkMSNA6cAnYPDJckzp63TS5b+Wd+pVYcPa Nf+CGkXGP4JQZIVjgcxHD789aWHeVsQ8PuTGwi9JLP3hiBLivDbmrN3oJ BADQSdw4nwyVL1YRlcO9wWsHQo2XHUvS7JzCZypk+iU0F2GPodVsKVO+e 6yRLmTphUr6sIKkCmlI1vAXOQoii//g3w+4OwNJjF9Ye8T+mlciyeHszH L8MTzdBfHEqL3atK9x29mbmCRn4v5/J8nPNaY/GFrf/Q8cazh5GYOFmEA BfXjq7TDSXTjRvuaIjo4iLYUnV5j9XTbwB3064gw6WXQtAXklJ/0Uo5UT A==; X-CSE-ConnectionGUID: 6/71w3G4TJKoIyAFZm+R7w== X-CSE-MsgGUID: a9lbd0A9Qua1pNFSFbBmAg== X-IronPort-AV: E=Sophos;i="6.13,238,1732604400"; d="scan'208";a="37388198" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 27 Jan 2025 03:22:40 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Mon, 27 Jan 2025 03:22:09 -0700 Received: from [127.0.0.1] (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Mon, 27 Jan 2025 03:22:04 -0700 From: Charan Pedumuru Date: Mon, 27 Jan 2025 15:51:58 +0530 Subject: [PATCH v3] dt-bindings: dma: convert atmel-dma.txt to YAML MIME-Version: 1.0 Message-ID: <20250127-test-v3-1-1b5f5b3f64fc@microchip.com> X-B4-Tracking: v=1; b=H4sIAEVel2cC/03MywrDIBCF4VcJs+4Urxi66nuELsSMdRbGoBIKI e9e6arLD/5zTmhUmRo8phMqHdy4bAP6NkFIfnsT8joMSigrpHLYqXWcBdlg5hCdcTDSvVLkz+9 meQ3HWjL2VMn/jzWu2eMhUaKwJkrvHDmtn5lDLSHxfg8lw3V9AUjY1DyVAAAA To: Ludovic Desroches , Vinod Koul , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Andrei Simion CC: , , , , "Durai Manickam KR" , Charan Pedumuru X-Mailer: b4 0.14.1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250127_022244_030704_5754D431 X-CRM114-Status: GOOD ( 22.65 ) 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 From: Durai Manickam KR Add a description, required properties, appropriate compatibles and missing properties like clocks and clock-names which are not defined in the text binding for all the SoCs that are supported by microchip. Update the text binding name `atmel-dma.txt` to `atmel,at91sam9g45-dma.yaml` for the files which reference to `atmel-dma.txt`. Drop Tudor name from maintainers. Signed-off-by: Durai Manickam KR Signed-off-by: Charan Pedumuru --- Changes in v3: - Renamed the text binding name `atmel-dma.txt` to `atmel,at91sam9g45-dma.yaml` for the files which reference to `atmel-dma.txt`. - Removed `oneOf` and add a blank line in properties. - Dropped Tudor name from maintainers. - Link to v2: https://lore.kernel.org/r/20250123-dma-v1-1-054f1a77e733@microchip.com Changes in v2: - Renamed the yaml file to a compatible. - Removed `|` and description for common properties. - Modified the commit message. - Dropped the label for the node in examples. - Link to v1: https://lore.kernel.org/all/20240215-dmac-v1-1-8f1c6f031c98@microchip.com --- .../bindings/dma/atmel,at91sam9g45-dma.yaml | 66 ++++++++++++++++++++++ .../devicetree/bindings/dma/atmel-dma.txt | 42 -------------- .../devicetree/bindings/misc/atmel-ssc.txt | 2 +- MAINTAINERS | 2 +- 4 files changed, 68 insertions(+), 44 deletions(-) --- base-commit: 232f121837ad8b1c21cc80f2c8842a4090c5a2a0 change-id: 20250127-test-80e5c48cf747 Best regards, diff --git a/Documentation/devicetree/bindings/dma/atmel,at91sam9g45-dma.yaml b/Documentation/devicetree/bindings/dma/atmel,at91sam9g45-dma.yaml new file mode 100644 index 000000000000..d6d16869b7db --- /dev/null +++ b/Documentation/devicetree/bindings/dma/atmel,at91sam9g45-dma.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/atmel,at91sam9g45-dma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Atmel Direct Memory Access Controller (DMA) + +maintainers: + - Ludovic Desroches + +description: + The Atmel Direct Memory Access Controller (DMAC) transfers data from a source + peripheral to a destination peripheral over one or more AMBA buses. One channel + is required for each source/destination pair. In the most basic configuration, + the DMAC has one master interface and one channel. The master interface reads + the data from a source and writes it to a destination. Two AMBA transfers are + required for each DMAC data transfer. This is also known as a dual-access transfer. + The DMAC is programmed via the APB interface. + +properties: + compatible: + enum: + - atmel,at91sam9g45-dma + - atmel,at91sam9rl-dma + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#dma-cells": + description: + Must be <2>, used to represent the number of integer cells in the dmas + property of client devices. + const: 2 + + clocks: + maxItems: 1 + + clock-names: + const: dma_clk + +required: + - compatible + - reg + - interrupts + - "#dma-cells" + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + dma-controller@ffffec00 { + compatible = "atmel,at91sam9g45-dma"; + reg = <0xffffec00 0x200>; + interrupts = <21>; + #dma-cells = <2>; + clocks = <&pmc 2 20>; + clock-names = "dma_clk"; + }; + +... diff --git a/Documentation/devicetree/bindings/dma/atmel-dma.txt b/Documentation/devicetree/bindings/dma/atmel-dma.txt deleted file mode 100644 index f69bcf5a6343..000000000000 --- a/Documentation/devicetree/bindings/dma/atmel-dma.txt +++ /dev/null @@ -1,42 +0,0 @@ -* Atmel Direct Memory Access Controller (DMA) - -Required properties: -- compatible: Should be "atmel,-dma". -- reg: Should contain DMA registers location and length. -- interrupts: Should contain DMA interrupt. -- #dma-cells: Must be <2>, used to represent the number of integer cells in -the dmas property of client devices. - -Example: - -dma0: dma@ffffec00 { - compatible = "atmel,at91sam9g45-dma"; - reg = <0xffffec00 0x200>; - interrupts = <21>; - #dma-cells = <2>; -}; - -DMA clients connected to the Atmel DMA controller must use the format -described in the dma.txt file, using a three-cell specifier for each channel: -a phandle plus two integer cells. -The three cells in order are: - -1. A phandle pointing to the DMA controller. -2. The memory interface (16 most significant bits), the peripheral interface -(16 less significant bits). -3. Parameters for the at91 DMA configuration register which are device -dependent: - - bit 7-0: peripheral identifier for the hardware handshaking interface. The - identifier can be different for tx and rx. - - bit 11-8: FIFO configuration. 0 for half FIFO, 1 for ALAP, 2 for ASAP. - -Example: - -i2c0@i2c@f8010000 { - compatible = "atmel,at91sam9x5-i2c"; - reg = <0xf8010000 0x100>; - interrupts = <9 4 6>; - dmas = <&dma0 1 7>, - <&dma0 1 8>; - dma-names = "tx", "rx"; -}; diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt index f9fb412642fe..b159dc2298b6 100644 --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt @@ -14,7 +14,7 @@ Required properties: Required properties for devices compatible with "atmel,at91sam9g45-ssc": - dmas: DMA specifier, consisting of a phandle to DMA controller node, the memory interface and SSC DMA channel ID (for tx and rx). - See Documentation/devicetree/bindings/dma/atmel-dma.txt for details. + See Documentation/devicetree/bindings/dma/atmel,at91sam9g45-dma.yaml for details. - dma-names: Must be "tx", "rx". Optional properties: diff --git a/MAINTAINERS b/MAINTAINERS index 962eab2ce359..f1f4e3956f45 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15348,7 +15348,7 @@ M: Ludovic Desroches L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) L: dmaengine@vger.kernel.org S: Supported -F: Documentation/devicetree/bindings/dma/atmel-dma.txt +F: Documentation/devicetree/bindings/dma/atmel,at91sam9g45-dma.yaml F: drivers/dma/at_hdmac.c F: drivers/dma/at_xdmac.c F: include/dt-bindings/dma/at91.h