From patchwork Wed May 26 10:04:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vignesh Raghavendra X-Patchwork-Id: 448575 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=-19.1 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, 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 68F5CC2B9F7 for ; Wed, 26 May 2021 10:04:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45369613C9 for ; Wed, 26 May 2021 10:04:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233774AbhEZKGT (ORCPT ); Wed, 26 May 2021 06:06:19 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:35040 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233790AbhEZKGM (ORCPT ); Wed, 26 May 2021 06:06:12 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 14QA4WlC081908; Wed, 26 May 2021 05:04:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1622023472; bh=0qWRyKEw5KOaf8+qsThgPulM36ude4I2UL9wtlv3SpA=; h=From:To:CC:Subject:Date; b=pJGF1M3hIpzsSGO5xtovVhKA2LU1qzXoipUsnm3QFy2refYGJJLAZHno/nqYOkP8h oSTX9M4Mon1PGhgJlvVYqkv74wSIBgKisNGq7ObmLJkdKfTpKutU+dGmbeopyCd4dd +H8C8tsbgYk9ENvUVU6unKL0C6/Q4/0nJEe1uU9s= Received: from DFLE100.ent.ti.com (dfle100.ent.ti.com [10.64.6.21]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 14QA4Wqv068671 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 26 May 2021 05:04:32 -0500 Received: from DFLE105.ent.ti.com (10.64.6.26) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 26 May 2021 05:04:31 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE105.ent.ti.com (10.64.6.26) 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; Wed, 26 May 2021 05:04:31 -0500 Received: from ula0132425.ent.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 14QA4QL1009048; Wed, 26 May 2021 05:04:27 -0500 From: Vignesh Raghavendra To: Rob Herring CC: Wolfram Sang , , , , , Linux ARM Mailing List , Nishanth Menon , Andreas Kemnade , Vignesh Raghavendra Subject: [PATCH v3] dt-bindings: i2c: Move i2c-omap.txt to YAML format Date: Wed, 26 May 2021 15:34:12 +0530 Message-ID: <20210526100412.484-1-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. Document clocks property Signed-off-by: Vignesh Raghavendra Reviewed-by: Rob Herring --- Note that am335x-myirtech*.dtsi needs fixing to drop scl/sda-gpios which are not supported by i2c-omap driver. omap2/3 dmas property is being dropped by: https://lore.kernel.org/20210526094424.27234-1-vigneshr@ti.com v3: Add conditions around ti,hwmods usage drop dmas property as it was never used/supported set additionalProperties: False Address Rob H comments v2: Fix issues with make dt_bindings_check Add description on usage of ti,hwmods v2: https://lore.kernel.org/r/20210506140026.31254-1-vigneshr@ti.com v1: https://lore.kernel.org/r/20210505065511.918-1-vigneshr@ti.com .../devicetree/bindings/i2c/i2c-omap.txt | 37 ------- .../devicetree/bindings/i2c/ti,omap4-i2c.yaml | 102 ++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 103 insertions(+), 38 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..ff165ad1bee8 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml @@ -0,0 +1,102 @@ +# 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 + +properties: + compatible: + oneOf: + - enum: + - ti,omap2420-i2c + - ti,omap2430-i2c + - ti,omap3-i2c + - ti,omap4-i2c + - items: + - enum: + - ti,am4372-i2c + - ti,am64-i2c + - ti,am654-i2c + - ti,j721e-i2c + - const: ti,omap4-i2c + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + const: fck + + clock-frequency: true + + power-domains: true + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + ti,hwmods: + description: + 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. + $ref: /schemas/types.yaml#/definitions/string + deprecated: true + +# subnode's properties +patternProperties: + "@[0-9a-f]+$": + type: object + description: + Flash device uses the below defined properties in the subnode. + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +if: + properties: + compatible: + oneOf: + - const: ti,omap2420-i2c + - const: ti,omap2430-i2c + - const: ti,omap3-i2c + - const: ti,omap4-i2c + +then: + properties: + ti,hwmods: + items: + - pattern: "^i2c([1-9])$" + +else: + properties: + ti,hwmods: 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>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 710203d794d7..33625bb83b21 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13424,7 +13424,7 @@ M: Vignesh R L: linux-omap@vger.kernel.org L: linux-i2c@vger.kernel.org S: Maintained -F: Documentation/devicetree/bindings/i2c/i2c-omap.txt +F: Documentation/devicetree/bindings/i2c/ti,omap4-i2c.yaml F: drivers/i2c/busses/i2c-omap.c OMAP IMAGING SUBSYSTEM (OMAP3 ISP and OMAP4 ISS)