From patchwork Thu May 6 14:00:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 432379 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45A43C43460 for ; Thu, 6 May 2021 14:01:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16C52610FC for ; Thu, 6 May 2021 14:01:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234630AbhEFOCW (ORCPT ); Thu, 6 May 2021 10:02:22 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:38246 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234300AbhEFOCW (ORCPT ); Thu, 6 May 2021 10:02:22 -0400 Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 146E19ZQ115272; Thu, 6 May 2021 09:01:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1620309669; bh=PO40aX03WVEWq6XGqIkMqIPpBqYlbf9IY7xusUHoC7o=; h=From:To:CC:Subject:Date; b=QRsc3S55vmdIrb96Ai3p18EbFxUmcO7fy9c7MGDzJN1QDy5BICA8k74vCVgpKt40b 9a6QCULqGvoYant7exC9OMZUXIFn9io1X6jBpjWrgSDXKDBKOFIkSwP7lgbZ4209b1 nEQwhhqu38udA7Zxu2h9L/tVZDxt7mv6lGVxtbA0= Received: from DFLE103.ent.ti.com (dfle103.ent.ti.com [10.64.6.24]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 146E19tB095495 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 6 May 2021 09:01:09 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE103.ent.ti.com (10.64.6.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Thu, 6 May 2021 09:01:09 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Thu, 6 May 2021 09:01:09 -0500 Received: from ula0132425.ent.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 146E157t125875; Thu, 6 May 2021 09:01:06 -0500 From: Vignesh Raghavendra To: Rob Herring CC: , , , , Vignesh Raghavendra , Linux ARM Mailing List , Tony Lindgren , Nishanth Menon Subject: [PATCH v2] dt-bindings: i2c: Move i2c-omap.txt to YAML format Date: Thu, 6 May 2021 19:30:26 +0530 Message-ID: <20210506140026.31254-1-vigneshr@ti.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Convert i2c-omap.txt to YAML schema for better checks and documentation. Following properties were used in DT but were not documented in txt bindings and has been included in YAML schema: 1. Include ti,am4372-i2c compatible 2. Include dmas property used in few OMAP dts files 3. Document clocks property Signed-off-by: Vignesh Raghavendra --- v2: Fix issues with make dt_bindings_check Add description on usage of ti,hwmods .../devicetree/bindings/i2c/i2c-omap.txt | 37 --------- .../devicetree/bindings/i2c/ti,omap4-i2c.yaml | 80 +++++++++++++++++++ 2 files changed, 80 insertions(+), 37 deletions(-) delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-omap.txt create mode 100644 Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/i2c-omap.txt b/Documentation/devicetree/bindings/i2c/i2c-omap.txt deleted file mode 100644 index a425b91af48f..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-omap.txt +++ /dev/null @@ -1,37 +0,0 @@ -I2C for OMAP platforms - -Required properties : -- compatible : Must be - "ti,omap2420-i2c" for OMAP2420 SoCs - "ti,omap2430-i2c" for OMAP2430 SoCs - "ti,omap3-i2c" for OMAP3 SoCs - "ti,omap4-i2c" for OMAP4+ SoCs - "ti,am654-i2c", "ti,omap4-i2c" for AM654 SoCs - "ti,j721e-i2c", "ti,omap4-i2c" for J721E SoCs - "ti,am64-i2c", "ti,omap4-i2c" for AM64 SoCs -- ti,hwmods : Must be "i2c", n being the instance number (1-based) -- #address-cells = <1>; -- #size-cells = <0>; - -Recommended properties : -- clock-frequency : Desired I2C bus clock frequency in Hz. Otherwise - the default 100 kHz frequency will be used. - -Optional properties: -- Child nodes conforming to i2c bus binding - -Note: Current implementation will fetch base address, irq and dma -from omap hwmod data base during device registration. -Future plan is to migrate hwmod data base contents into device tree -blob so that, all the required data will be used from device tree dts -file. - -Examples : - -i2c1: i2c@0 { - compatible = "ti,omap3-i2c"; - #address-cells = <1>; - #size-cells = <0>; - ti,hwmods = "i2c1"; - clock-frequency = <400000>; -}; diff --git a/Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml b/Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml new file mode 100644 index 000000000000..eb11e3025b37 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/ti,omap4-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bindings for I2C controllers on TI's OMAP and K3 SoCs + +maintainers: + - Vignesh Raghavendra + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + oneOf: + - const: ti,omap2420-i2c + - const: ti,omap2430-i2c + - const: ti,omap3-i2c + - const: ti,omap4-i2c + - items: + - enum: + - ti,am4372-i2c + - ti,am64-i2c + - ti,am654-i2c + - ti,j721e-i2c + - const: ti,omap4-i2c + + ti,hwmods: + description: + (DEPRECATED) Must be "i2c", n being the instance number (1-based). + This property is applicable only on legacy platforms mainly omap2/3 + and ti81xx and should not be used on other platforms. + $ref: /schemas/types.yaml#/definitions/string + items: + - pattern: "^i2c([1-9])$" + + dmas: + minItems: 1 + maxItems: 2 + + dma-names: + items: + - const: tx + - const: rx + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: fck + + clock-frequency: true + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include + #include + + main_i2c0: i2c@2000000 { + compatible = "ti,j721e-i2c", "ti,omap4-i2c"; + reg = <0x2000000 0x100>; + interrupts = ; + #address-cells = <1>; + #size-cells = <0>; + };