From patchwork Thu Oct 20 10:14:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joy Zou X-Patchwork-Id: 13013002 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 EF87EC433FE for ; Thu, 20 Oct 2022 10:25:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dAMNkIUh7RnQvA8xCBRHdoLa4RYw5Bzp5DkNbQN3hPM=; b=MwbWEo8K567aro /USCVi2d5sEYGeXMNWp94yJyDdcorHEJPK1pGmqew77ZFFRli/n5tItCzvSp0DSuVwAmsOt5gIso6 aCZsCfM9gkXcyx8HsP4YH9yW/BOyzWqkLA7nE5niyFMP6E1+VcfGhnj3kcxAQp6YzVpfre//c2izL H3NAOUynb6x+MkGustqGgnEuhA7/kHVoqQA+JZER/jBGC2dETawAPEXx1OPLtqtOu88LcLtias6tM YxuVsOnJQwK7ISje9XZPZgpfOrp9P0U+dHkIY6RbsPe9CRZziN3APnjwe6Z0oPNgynvFjtb0xZwti /CH68wMbyp9ixoIdRUMQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1olSiW-00DVzE-LO; Thu, 20 Oct 2022 10:24:02 +0000 Received: from mail-eopbgr80044.outbound.protection.outlook.com ([40.107.8.44] helo=EUR04-VI1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1olSaD-00DQPa-TF for linux-arm-kernel@lists.infradead.org; Thu, 20 Oct 2022 10:15:28 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Ec/VxzKcNDuObfJahK171UlZ6Pt1q/hL9GhOOlLYi8bjRJ/OCxYgPh/hoBJ32m89PT6ph9mcIDRPz+UNe8q9xDF9Ps08pM72TIojf0hk0oPkf08UcJCEFKjRQBqqb0ioxdR35RgkjzCOQo6eNINDYA0dJ+b0x0BOTOR3SaaTTc75Aw78F+kEvtOCD1ivh0VIXk2EdWoS0PsVUVhC9gW/EhVnEuXVHzO82UA5tV2t7Z0absrZTcUEENUFd6IRXy5oo6KYAOivYRn0uY18wcrHtl67NZ8HagpLAbBF+IGQ/QsJ4mCdeyEnR/nU2dBi/IherqbGRZ4B7J4Y66kHKn5r8g== 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=xt6fDI5F3i8dI1X8YcnvQdhddD64JWfTToiqrA14f5Q=; b=AKlP0fQs1LjaAvKIa2MIGVRMcirtTIZ/ZzO7lsYgU8E9CjihDIBAtYPVsaM8dAREWMnd7dRkN9hreQhI8gSYwDLayltndQK1ZbKYCRasyKXwCUrke0bWCod+T49ct5CL1Lzeam2oQt1MlJPu6evE6jRBE94eDOgWaYVNInLUtfR7kIypHxUoTSpAf6euk82HQTYwdocWb03HDMdYA5o95EuAffaSCQyvPCb/ECOGPdzZmp2yWu8NI40hSkFzjoNkg74AobT1YQiEeku+TwGHpsRO91jiq+6QP/R7gbwPnCNVHS1ZVwMkEWA3/XCXglcwcCZgoPI7BkcrjB+L86bHAw== 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=xt6fDI5F3i8dI1X8YcnvQdhddD64JWfTToiqrA14f5Q=; b=k+ZnRADAGIHMqUWBqGdL+NZss8mKZ7Kq5ivD7yY2tiaO6jj1axQHlRVvH43yqc40akx3mjG7msOITUDW/I8kWkauFL2y+zQRKh67zpbMJFqbbDE7Ah26LkfRFj/MsqMx5RMgIRTS1purWShpqrIbq7Ebc4Ji+9wUv+7McJKB0bQ= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from AM6PR04MB5925.eurprd04.prod.outlook.com (2603:10a6:20b:ab::19) by PA4PR04MB7935.eurprd04.prod.outlook.com (2603:10a6:102:b8::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5723.29; Thu, 20 Oct 2022 10:15:21 +0000 Received: from AM6PR04MB5925.eurprd04.prod.outlook.com ([fe80::7a34:469:fd53:922c]) by AM6PR04MB5925.eurprd04.prod.outlook.com ([fe80::7a34:469:fd53:922c%7]) with mapi id 15.20.5723.034; Thu, 20 Oct 2022 10:15:21 +0000 From: Joy Zou To: vkoul@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com Cc: shengjiu.wang@nxp.com, martink@posteo.de, dev@lynxeye.de, alexander.stein@ew.tq-group.com, peng.fan@nxp.com, david@ixit.cz, aford173@gmail.com, hongxing.zhu@nxp.com, linux-imx@nxp.com, dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma to DT schema Date: Thu, 20 Oct 2022 18:14:01 +0800 Message-Id: <20221020101402.1856818-2-joy.zou@nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20221020101402.1856818-1-joy.zou@nxp.com> References: <20221020101402.1856818-1-joy.zou@nxp.com> X-ClientProxiedBy: SI2P153CA0030.APCP153.PROD.OUTLOOK.COM (2603:1096:4:190::15) To AM6PR04MB5925.eurprd04.prod.outlook.com (2603:10a6:20b:ab::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM6PR04MB5925:EE_|PA4PR04MB7935:EE_ X-MS-Office365-Filtering-Correlation-Id: d02cee41-5ebc-4ebf-4d00-08dab283fe7c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM6PR04MB5925.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(4636009)(366004)(346002)(39860400002)(396003)(376002)(136003)(451199015)(66946007)(2906002)(5660300002)(4326008)(66476007)(6512007)(44832011)(8936002)(7416002)(316002)(83380400001)(38350700002)(38100700002)(8676002)(66556008)(6666004)(478600001)(6506007)(52116002)(86362001)(966005)(6486002)(186003)(1076003)(2616005)(26005)(41300700001)(36756003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: d02cee41-5ebc-4ebf-4d00-08dab283fe7c X-MS-Exchange-CrossTenant-AuthSource: AM6PR04MB5925.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Oct 2022 10:15:21.0271 (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: ufHDbA7QtXj9IqjYj7pJDa4NSnag+XqvJ3EbUXPH0FuPdSS3yKmxt8Ay6bl37vBg X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA4PR04MB7935 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221020_031526_183443_35E0DEDE X-CRM114-Status: GOOD ( 17.87 ) 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 the i.MX SDMA binding to DT schema format using json-schema. The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The original binding don't list all compatible used. In addition, add new peripheral types HDMI Audio. Signed-off-by: Joy Zou --- Changes in v6: delete tag Acked-by from commit message. Changes in v5: modify the commit message fromat. add additionalProperties, because delete the quotes in patch v4. delete unevaluatedProperties due to similar to additionalProperties. modification fsl,sdma-event-remap items and description. Changes in v4: modify the commit message. delete the quotes in patch. modify the compatible in patch. delete maxitems and add items for clock-names property. add iram property. Changes in v3: modify the commit message. modify the filename. modify the maintainer. delete the unnecessary comment. modify the compatible and run dt_binding_check and dtbs_check. add clocks and clock-names property. delete the reg description and add maxItems. delete the interrupts description and add maxItems. add ref for gpr property. modify the fsl,sdma-event-remap ref type and add items. delete consumer example. Changes in v2: convert imx sdma bindings to DT schema. --- .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 147 ++++++++++++++++++ .../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 -------------- 2 files changed, 147 insertions(+), 118 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml new file mode 100644 index 000000000000..3da65d3ea4af --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml @@ -0,0 +1,147 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX + +maintainers: + - Joy Zou + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx50-sdma + - fsl,imx51-sdma + - fsl,imx53-sdma + - fsl,imx6q-sdma + - fsl,imx7d-sdma + - const: fsl,imx35-sdma + - items: + - enum: + - fsl,imx6sx-sdma + - fsl,imx6sl-sdma + - const: fsl,imx6q-sdma + - items: + - const: fsl,imx6ul-sdma + - const: fsl,imx6q-sdma + - const: fsl,imx35-sdma + - items: + - const: fsl,imx6sll-sdma + - const: fsl,imx6ul-sdma + - items: + - const: fsl,imx8mq-sdma + - const: fsl,imx7d-sdma + - items: + - enum: + - fsl,imx8mp-sdma + - fsl,imx8mn-sdma + - fsl,imx8mm-sdma + - const: fsl,imx8mq-sdma + - items: + - enum: + - fsl,imx25-sdma + - fsl,imx31-sdma + - fsl,imx35-sdma + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,sdma-ram-script-name: + $ref: /schemas/types.yaml#/definitions/string + description: Should contain the full path of SDMA RAM scripts firmware. + + "#dma-cells": + const: 3 + description: | + The first cell: request/event ID + + The second cell: peripheral types ID + enum: + - MCU domain SSI: 0 + - Shared SSI: 1 + - MMC: 2 + - SDHC: 3 + - MCU domain UART: 4 + - Shared UART: 5 + - FIRI: 6 + - MCU domain CSPI: 7 + - Shared CSPI: 8 + - SIM: 9 + - ATA: 10 + - CCM: 11 + - External peripheral: 12 + - Memory Stick Host Controller: 13 + - Shared Memory Stick Host Controller: 14 + - DSP: 15 + - Memory: 16 + - FIFO type Memory: 17 + - SPDIF: 18 + - IPU Memory: 19 + - ASRC: 20 + - ESAI: 21 + - SSI Dual FIFO: 22 + description: needs firmware more than ver 2 + - Shared ASRC: 23 + - SAI: 24 + - HDMI Audio: 25 + + The third cell: transfer priority ID + enum: + - High: 0 + - Medium: 1 + - Low: 2 + + gpr: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle to the General Purpose Register (GPR) node + + fsl,sdma-event-remap: + $ref: /schemas/types.yaml#/definitions/uint32-matrix + maxItems: 2 + items: + items: + - description: GPR register offset + - description: GPR register shift + - description: GPR register value + description: | + Register bits of sdma event remap, the format is . + The order is , . + + clocks: + maxItems: 2 + + clock-names: + items: + - const: ipg + - const: ahb + + iram: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle to the On-chip RAM (OCRAM) node. + +required: + - compatible + - reg + - interrupts + - fsl,sdma-ram-script-name + - "#dma-cells" + +additionalProperties: false + +examples: + - | + sdma: dma-controller@83fb0000 { + compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; + reg = <0x83fb0000 0x4000>; + interrupts = <6>; + #dma-cells = <3>; + fsl,sdma-ram-script-name = "sdma-imx51.bin"; + }; + +... diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt deleted file mode 100644 index 12c316ff4834..000000000000 --- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt +++ /dev/null @@ -1,118 +0,0 @@ -* Freescale Smart Direct Memory Access (SDMA) Controller for i.MX - -Required properties: -- compatible : Should be one of - "fsl,imx25-sdma" - "fsl,imx31-sdma", "fsl,imx31-to1-sdma", "fsl,imx31-to2-sdma" - "fsl,imx35-sdma", "fsl,imx35-to1-sdma", "fsl,imx35-to2-sdma" - "fsl,imx51-sdma" - "fsl,imx53-sdma" - "fsl,imx6q-sdma" - "fsl,imx7d-sdma" - "fsl,imx6ul-sdma" - "fsl,imx8mq-sdma" - "fsl,imx8mm-sdma" - "fsl,imx8mn-sdma" - "fsl,imx8mp-sdma" - The -to variants should be preferred since they allow to determine the - correct ROM script addresses needed for the driver to work without additional - firmware. -- reg : Should contain SDMA registers location and length -- interrupts : Should contain SDMA interrupt -- #dma-cells : Must be <3>. - The first cell specifies the DMA request/event ID. See details below - about the second and third cell. -- fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM - scripts firmware - -The second cell of dma phandle specifies the peripheral type of DMA transfer. -The full ID of peripheral types can be found below. - - ID transfer type - --------------------- - 0 MCU domain SSI - 1 Shared SSI - 2 MMC - 3 SDHC - 4 MCU domain UART - 5 Shared UART - 6 FIRI - 7 MCU domain CSPI - 8 Shared CSPI - 9 SIM - 10 ATA - 11 CCM - 12 External peripheral - 13 Memory Stick Host Controller - 14 Shared Memory Stick Host Controller - 15 DSP - 16 Memory - 17 FIFO type Memory - 18 SPDIF - 19 IPU Memory - 20 ASRC - 21 ESAI - 22 SSI Dual FIFO (needs firmware ver >= 2) - 23 Shared ASRC - 24 SAI - -The third cell specifies the transfer priority as below. - - ID transfer priority - ------------------------- - 0 High - 1 Medium - 2 Low - -Optional properties: - -- gpr : The phandle to the General Purpose Register (GPR) node. -- fsl,sdma-event-remap : Register bits of sdma event remap, the format is - . - reg is the GPR register offset. - shift is the bit position inside the GPR register. - val is the value of the bit (0 or 1). - -Examples: - -sdma@83fb0000 { - compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; - reg = <0x83fb0000 0x4000>; - interrupts = <6>; - #dma-cells = <3>; - fsl,sdma-ram-script-name = "sdma-imx51.bin"; -}; - -DMA clients connected to the i.MX SDMA controller must use the format -described in the dma.txt file. - -Examples: - -ssi2: ssi@70014000 { - compatible = "fsl,imx51-ssi", "fsl,imx21-ssi"; - reg = <0x70014000 0x4000>; - interrupts = <30>; - clocks = <&clks 49>; - dmas = <&sdma 24 1 0>, - <&sdma 25 1 0>; - dma-names = "rx", "tx"; - fsl,fifo-depth = <15>; -}; - -Using the fsl,sdma-event-remap property: - -If we want to use SDMA on the SAI1 port on a MX6SX: - -&sdma { - gpr = <&gpr>; - /* SDMA events remap for SAI1_RX and SAI1_TX */ - fsl,sdma-event-remap = <0 15 1>, <0 16 1>; -}; - -The fsl,sdma-event-remap property in this case has two values: -- <0 15 1> means that the offset is 0, so GPR0 is the register of the -SDMA remap. Bit 15 of GPR0 selects between UART4_RX and SAI1_RX. -Setting bit 15 to 1 selects SAI1_RX. -- <0 16 1> means that the offset is 0, so GPR0 is the register of the -SDMA remap. Bit 16 of GPR0 selects between UART4_TX and SAI1_TX. -Setting bit 16 to 1 selects SAI1_TX.