From patchwork Thu Jun 13 19:00:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Frank Li X-Patchwork-Id: 13697338 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 03635C27C4F for ; Thu, 13 Jun 2024 19:01:30 +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:MIME-Version:Cc:To: In-Reply-To:References:Message-Id:Content-Transfer-Encoding:Content-Type: Subject:Date:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=jDtADWTc9kg50HQBuTQK3rA2YPCUGjvoANTHpqA38gA=; b=HUP4SLPEzHqWE1qG7+GM52qryU nOjc+r+7P9rN2W95rcndO/lugXhry1iSrhODS+GO5mgnN4nNfEzE086RbL0SOgO+Q+k2fqOF0wvOP HKdxjnwKNeMhmIl4LD255rVcIUnm+tdPrDh07nZ9lU9XsjE2wU7pl03y1nMx3Bka2yMuUMPUHKE31 H4RwLY1Xx12l78EZrK+HzHIhhWRW6s7gyjlx9tN8589oAG972D+0y0xOGgzkW0Ak2ZsgtFtdxiK1X sY1O1SSv0stInuEyDM8xYBtgjuQgrYt6h+Vr6Q9M+UAcSBrzBqTkwGjV29Velyo9D45nczYFETb7C FlkquUJg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHphB-00000000BTw-162m; Thu, 13 Jun 2024 19:01:13 +0000 Received: from mail-he1eur04on20600.outbound.protection.outlook.com ([2a01:111:f403:260f::600] helo=EUR04-HE1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sHph6-00000000BOY-2v5x for linux-arm-kernel@lists.infradead.org; Thu, 13 Jun 2024 19:01:10 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=lfSBpC0/9XWx4gh+yTkQQCV2w43gx4Sdo7j6RiBzXjhAlgZyP+oPoimk/c87s9m/fchtHYKZweswRr92AqRKkhcqx3VkyEzA2vMj0pqDqeZ6ktANrWlewEk7/xxWlvdo2XaRxzp0GWwc9jM04DMxhkuxO43f1F+Ht4oxdLzwMpfjql5ifz1xZtL6ZRMq6PimyyBdKZ8AN4BejvjPvcY50Z8nDb6tiOaqyHRJ0+VbQ03Reg/ExB3kwr+Uuu5zPfvkbe+cDW9d2VkUly2MmmabHsdS6IutPI9Gwwp1C+4Z3zDipYDDvLtJF7R+tSq0WRiackRzqqeOZVYQn0q+sxTMZQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=jDtADWTc9kg50HQBuTQK3rA2YPCUGjvoANTHpqA38gA=; b=Q2C75vy2ILJ5Xth4byoMQ7pdn9e3iwF2q47/t5Xk7aMNJaiQbGjxLAdFIOvBtk3rxORJKwLnHJiNq08X72TfMrU8z7UEh2PZtMK/vAYSRP+nbGTn9OP9NNvwCTPTSlLVjDS0TAJye5OlTiO34mSbRWN3ECyGlOyMEJ0+43AmUKlc47FuqtDePxcD/gTaYC6qwh/YL0cguZacttz9Co0SUCDP2+v8dCcn000kRMr7IbCLD8AI8TbTAeZ6Luxuu5BmUk3YqcL4wfVUwAG0BGRwZfZmugYl8XnQ+UzTPlU45UxjbKgfWh9hL+NnQ+22lNF77euOKCGJUiukdB4i7VWIFg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=jDtADWTc9kg50HQBuTQK3rA2YPCUGjvoANTHpqA38gA=; b=E5reWWgSJ94RBSeH12Yt93ayHCDwUoZawVvdgqkY1LmQZymbcjraksv5edWbjufR6WJQeGaLBcw1TKtnv+jbmSMnosBvAUvm9PaEOH0cgV3c1Z6Z+MuxtzU8osZ3Rh1SCL93BxzcYouLF2he3Ii1ioWQ8YYXgEmuDRmQZl6nbsI= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) by AS1PR04MB9384.eurprd04.prod.outlook.com (2603:10a6:20b:4d8::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7677.24; Thu, 13 Jun 2024 19:00:58 +0000 Received: from PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06]) by PAXPR04MB9642.eurprd04.prod.outlook.com ([fe80::9126:a61e:341d:4b06%2]) with mapi id 15.20.7677.024; Thu, 13 Jun 2024 19:00:58 +0000 From: Frank Li Date: Thu, 13 Jun 2024 15:00:38 -0400 Subject: [PATCH v2 2/3] spi: dt-bindings: fsl-dspi: Convert to yaml format Message-Id: <20240613-ls_qspi-v2-2-b288f6f5b736@nxp.com> References: <20240613-ls_qspi-v2-0-b288f6f5b736@nxp.com> In-Reply-To: <20240613-ls_qspi-v2-0-b288f6f5b736@nxp.com> To: Vladimir Oltean , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, Frank Li X-Mailer: b4 0.13-dev-e586c X-Developer-Signature: v=1; a=ed25519-sha256; t=1718305248; l=6289; i=Frank.Li@nxp.com; s=20240130; h=from:subject:message-id; bh=3kpVvZ7+OURsKTsSaz4XUDS0WqPemahfcN207RlHNzM=; b=vq2e5E7bPq8Kk3+pfsTqhXj4v8wgKfNukl5HjF4nZULDJIaInAVyMyZBRKDeBfrrve1Lk0sDQ av2ivLZkpx8D/3Pn/q5FDqwo9PlJDsNxJ3CrnMX7/bYwdqe9aJZl2sT X-Developer-Key: i=Frank.Li@nxp.com; a=ed25519; pk=I0L1sDUfPxpAkRvPKy7MdauTuSENRq+DnA+G4qcS94Q= X-ClientProxiedBy: BYAPR03CA0029.namprd03.prod.outlook.com (2603:10b6:a02:a8::42) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|AS1PR04MB9384:EE_ X-MS-Office365-Filtering-Correlation-Id: c495db6f-a249-4eed-e750-08dc8bdb294e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230035|52116009|376009|7416009|1800799019|366011|38350700009; X-Microsoft-Antispam-Message-Info: =?utf-8?q?d/GGv4mbob+QwexulhvDUwXXA5Fo/zX?= =?utf-8?q?+pHJmvn3cNG6NURrn64OS/7jetOBQshYu+iRTfuPCjBqhLIoDBVLwukYVqsIA+fPP?= =?utf-8?q?1kt92bYU/qPNdxMbkbM/InvnLvNqURzybYR+Cv41K/yq161L7df9uoIplfo1/JHtg?= =?utf-8?q?Z6LZSHfsqFWzvg8ctbVJSNzUoZTsePmauLuhwB7BaUz1YfkatXqbSZMTQJBltFu+E?= =?utf-8?q?KiPyRUH5XzOE15Ib34JqBkqZE2N0pucaJ4JzLixqjhWU/gIpiU1p/XZZoE1Dwr/1D?= =?utf-8?q?agJYKjR9WceLzss8u6pxMIr5ptgVHV5Ht66xtkLW/trcLm+FDGGN+In65o1AvS5Sb?= =?utf-8?q?rUEWmyFl6qusvNgmbK/9B7SU8upSZJJxriGS6zgznJKp4BZ5xcfChv1ywYPZrgifv?= =?utf-8?q?EqGCtpswjeQkx6ZDEKGVun+uYqmBsE0x95dW4kfEM/eWOzogGrONFcq9jPojRFxPJ?= =?utf-8?q?v1w4wDkMIAk4qHpJICLpPUjYMtb1fHXmqN+afi2yDKC2dGd5MEy8w7YprwWGyLq9V?= =?utf-8?q?fy1QYwFIKVyJ8pJx1klSeCRszJeU/PeLfdq2uZuNb9nz+c3g1Ry7otbWP8XHsgd7f?= =?utf-8?q?3q3+fNQLduJS4FXKcwNfb8KiT7k8/ANyQXpRdPpdbGp0+M9OqYaVXF2uuQRKMFAtr?= =?utf-8?q?4LVlPaJJFFBeZudf7ct6wck0w4IYC7puXI/vZrIxHikR16SSrjrl9FMV1mDOYQn8O?= =?utf-8?q?QWVXfEFYc9Cyf0GxmwdMWQoW/qidic/t696xirgci4x9GsTzbV4LQeA8SGXkfPSDP?= =?utf-8?q?f28PJuMsspeSXclxE1xz8WIN6NupM/bMifTgU4wsFeXiCLv68OC3+npyVq72I/Q4l?= =?utf-8?q?2DlXOhYppjtm8iZCU1vQ4/WYF0UQFTccRBiv/Vl65BpQBCCntXc4snOtd11jTg+Q/?= =?utf-8?q?XmUSFL0TMtXcgANQKb4uyiVpu0Oh9KEey40+sDyVmF14JXKFkNdEA06etcK+xL3hc?= =?utf-8?q?wpb5B3EBBpxjZK/mevYSmwNYBtLjofmUzgUgz/Cq4kuyX59aUGVwbjrxdI5XO4HSW?= =?utf-8?q?9ddJ4E+KiXGpUvzxkcJ+I5VHglwgFNEmOvVEJ6ZiKoNvNc0NB31r5/0fW3mot7kh3?= =?utf-8?q?rAqdpLsfpGK0gCjO7iE++C1YW61cMS1IkUaUh8jqp9exM8LlAgqLzFZLe2gpDBm8Z?= =?utf-8?q?EOzOYFf82ku1i9mLSN3583Nv37BXsOXMQsxLqpVmSmELpHrhDcNgBdqfMGT3DgMtZ?= =?utf-8?q?yjs8HOsJNY4C1xXQW2YJonFkGiko6MGzXujqNx+7DGABJnhWnT8B62Vz5M80/pwIE?= =?utf-8?q?K3JQ65DubxELS?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAXPR04MB9642.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230035)(52116009)(376009)(7416009)(1800799019)(366011)(38350700009);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?AbRlyyqwNXk0XhFX/XvrPleGWtY2?= =?utf-8?q?5yX1KeR12Crizs6MG1lPBqC//Hkx5LAX0jXqmMjymtztm8fUODjt6wR+00jSwrZvR?= =?utf-8?q?Q5O5lAW5dEC6STZ/3NJ8FCTPqjsvC6grIgRefZ8CnYwSGlXhxXBlvqyRajZnxMamt?= =?utf-8?q?04BaVERJHR4oeHrcmswDoNuAPxWK1yuKB66PLSGHV3uu8K9+mi+5V06lgXIZeVoEi?= =?utf-8?q?3HPIrJ8rZJykVSSv2TzNOJ8izrXj7na+Ma8mz1EHAtMMxcL3v8Z5YG8UJmxL6B9G2?= =?utf-8?q?mJaVuLRZDjjtmJEWAgzadQNwbkxw4BOgRo38O4ku0MFAwyYkuT7i6p72bKdsqEfbU?= =?utf-8?q?QXAzqGC9rkDYWQZx+bfbfwjwwMyBRDaecsuYcTHwXy/+v6Coree1j2zDQvj5zHpV6?= =?utf-8?q?tKTXGxGZFPdvC/5pHulkGHHR9b19QAWB+vJJ+q2u7ohHnPdhy6KF2FZsd/JRmrv8r?= =?utf-8?q?PKWYJ0RRwmfXJp2u2Dg510No1+fiGXk0N3D25hFrCI92NgFpMNGvd268z7D0kAtr3?= =?utf-8?q?qEV9WteK8zzkdFAOTKoMPLUhSUW9x/7cn0AGD4ZwZdmbU+9WANGc+Mswaf4GUVj93?= =?utf-8?q?A87Jf0HXlwFJAyq5wUDXC7EJ5p8V5NuDkMmZg07GvtpGHJmfVy1cLBwq5VoH9FPsC?= =?utf-8?q?ht00Hl7tMKIv3YgKXM0J39If8/TgFBEFnWO2r0QOzsQI76YZrnItRg/+zriul+4xk?= =?utf-8?q?sam7MRUMms/6+vh3Ck3IVDQ/FM69k9GGasXJdmIS6ZXkGYwPHYKqXhCZ6jCynEh6J?= =?utf-8?q?T8Z1ISe8m7Hje/oOY4bI/HgBIZaMSUL73+pX5sS1jAcNuY2AuJpyIOB7f77ROOWnP?= =?utf-8?q?jxTMQ1dOubeVN6NrMoYI45sqC0VJO0RLVL3CfCk9bOJrlvUCW3ZzBCajhwWPVebOJ?= =?utf-8?q?iVq//Ft0ZGYgaeRhojnyASBhZCRQkVOaTDTZq/jotF/LcCwwZoFpTO9SCOcITnqLq?= =?utf-8?q?PZtcOIzPQSVQztmWTMzj5bfclzey54SzYDfoQqVYXxTZ0+6Atab3jn5N3EN5trWFR?= =?utf-8?q?noCcBbMxP4cmzOpt9YpIfqRCe99LN6APms+QgWKUJi2Bfj5i6gtp1EAP3US9/uYc2?= =?utf-8?q?aNpPleRvXMCPGFRVVcn+FuloINJYyzO58mvLTDVJPYyK8A2wrrrhyS+/gVZnlNGuf?= =?utf-8?q?d2EeGywLgdG56GueA4XfJthMVYuiBgq28wki2BLdiYPH/pVTwPCvS1dJmoyUWanzu?= =?utf-8?q?SN0SLmDQwU2E/76i2tLJcM9BS2wv2lphkp2gBFI5K2vPIe1hXBhThUYRdu265hOvn?= =?utf-8?q?d632LisTEq66c5CYDAJog17N21L9UzoBirWSnIBeUeMUtJDwbiEjTf+7kANt6/pdU?= =?utf-8?q?SancnhrLI2l3gSjs655QuHdE2CDyx/S4UewOzwkggiLVaH6IMq3bSKOHoHcILbNTU?= =?utf-8?q?dn8U8uaBGqyFtPyu3/Hp3MvoJ8OizDna/bOOWjQlKiPi+TLeP6tp7zQZS1dS9C7o/?= =?utf-8?q?YK0dC3mD1pNQ+1lszjlvTflhg1Q1SA+d5xsRICGeK76yhuL+KWQBNVok=3D?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: c495db6f-a249-4eed-e750-08dc8bdb294e X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB9642.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jun 2024 19:00:58.7879 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: v0RuBXYbleNgIPo2ujgu2KdE+MhyaFnNz2nblgj1rwB/1j34Wlk23GO1vn1GLeiioSzkgxTFblPRie0tGeQXcw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS1PR04MB9384 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240613_120108_844295_1CDB267A X-CRM114-Status: GOOD ( 17.34 ) 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 Convert dt-binding spi-fsl-dspi.txt to yaml format. Addtional changes during convert: - compatible string "fsl,ls1028a-dspi" can be followed by fsl,ls1021a-v1.0-dspi. - Change "dspi0@4002c000" to "spi@4002c000" in example. - Reorder properties in example. - Use GIC include in example. - Remove fsl,spi-cs-sck-delay and fsl,spi-sck-cs-delay by use common SPI property. - Use compatible string 'jedec,spi-nor' in example. Signed-off-by: Frank Li --- .../devicetree/bindings/spi/fsl,dspi.yaml | 115 +++++++++++++++++++++ .../devicetree/bindings/spi/spi-fsl-dspi.txt | 65 ------------ 2 files changed, 115 insertions(+), 65 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/fsl,dspi.yaml b/Documentation/devicetree/bindings/spi/fsl,dspi.yaml new file mode 100644 index 0000000000000..924ba19aea017 --- /dev/null +++ b/Documentation/devicetree/bindings/spi/fsl,dspi.yaml @@ -0,0 +1,115 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/fsl,dspi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM Freescale DSPI controller + +maintainers: + - Frank Li + +properties: + compatible: + oneOf: + - enum: + - fsl,vf610-dspi + - fsl,ls1021a-v1.0-dspi + - fsl,ls1012a-dspi + - fsl,ls1028a-dspi + - fsl,ls1043a-dspi + - fsl,ls1046a-dspi + - fsl,ls1088a-dspi + - fsl,ls2080a-dspi + - fsl,ls2085a-dspi + - fsl,lx2160a-dspi + - items: + - enum: + - fsl,ls1012a-dspi + - fsl,ls1028a-dspi + - fsl,ls1043a-dspi + - fsl,ls1046a-dspi + - fsl,ls1088a-dspi + - const: fsl,ls1021a-v1.0-dspi + - items: + - const: fsl,ls2080a-dspi + - const: fsl,ls2085a-dspi + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: dspi + + pinctrl-0: true + + pinctrl-names: + items: + - const: default + + spi-num-chipselects: + $ref: /schemas/types.yaml#/definitions/uint32 + description: the number of the chipselect signals. + + big-endian: + $ref: /schemas/types.yaml#/definitions/flag + description: + If present the dspi device's registers are implemented + in big endian mode. + + bus-num: + $ref: /schemas/types.yaml#/definitions/uint32 + description: the slave chip chipselect signal number. + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - pinctrl-0 + - pinctrl-names + - spi-num-chipselects + +allOf: + - $ref: spi-controller.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + #include + + spi@4002c000 { + compatible = "fsl,vf610-dspi"; + reg = <0x4002c000 0x1000>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = ; + clocks = <&clks VF610_CLK_DSPI0>; + clock-names = "dspi"; + spi-num-chipselects = <5>; + bus-num = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dspi0_1>; + big-endian; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <16000000>; + spi-cpol; + spi-cpha; + spi-cs-setup-delay-ns = <100>; + spi-cs-hold-delay-ns = <50>; + }; + }; + diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt b/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt deleted file mode 100644 index 30a79da9c039d..0000000000000 --- a/Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt +++ /dev/null @@ -1,65 +0,0 @@ -ARM Freescale DSPI controller - -Required properties: -- compatible : must be one of: - "fsl,vf610-dspi", - "fsl,ls1021a-v1.0-dspi", - "fsl,ls1012a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"), - "fsl,ls1028a-dspi", - "fsl,ls1043a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"), - "fsl,ls1046a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"), - "fsl,ls1088a-dspi" (optionally followed by "fsl,ls1021a-v1.0-dspi"), - "fsl,ls2080a-dspi" (optionally followed by "fsl,ls2085a-dspi"), - "fsl,ls2085a-dspi", - "fsl,lx2160a-dspi", -- reg : Offset and length of the register set for the device -- interrupts : Should contain SPI controller interrupt -- clocks: from common clock binding: handle to dspi clock. -- clock-names: from common clock binding: Shall be "dspi". -- pinctrl-0: pin control group to be used for this controller. -- pinctrl-names: must contain a "default" entry. -- spi-num-chipselects : the number of the chipselect signals. - -Optional property: -- big-endian: If present the dspi device's registers are implemented - in big endian mode. -- bus-num : the slave chip chipselect signal number. - -Optional SPI slave node properties: -- fsl,spi-cs-sck-delay: a delay in nanoseconds between activating chip - select and the start of clock signal, at the start of a transfer. -- fsl,spi-sck-cs-delay: a delay in nanoseconds between stopping the clock - signal and deactivating chip select, at the end of a transfer. - -Example: - -dspi0@4002c000 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "fsl,vf610-dspi"; - reg = <0x4002c000 0x1000>; - interrupts = <0 67 0x04>; - clocks = <&clks VF610_CLK_DSPI0>; - clock-names = "dspi"; - spi-num-chipselects = <5>; - bus-num = <0>; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_dspi0_1>; - big-endian; - - sflash: at26df081a@0 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "atmel,at26df081a"; - spi-max-frequency = <16000000>; - spi-cpol; - spi-cpha; - reg = <0>; - linux,modalias = "m25p80"; - modal = "at26df081a"; - fsl,spi-cs-sck-delay = <100>; - fsl,spi-sck-cs-delay = <50>; - }; -}; - -