From patchwork Fri Jan 20 19:01:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hawkins, Nick" X-Patchwork-Id: 644819 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FC35C25B50 for ; Fri, 20 Jan 2023 19:04:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230079AbjATTEY (ORCPT ); Fri, 20 Jan 2023 14:04:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40414 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229555AbjATTEW (ORCPT ); Fri, 20 Jan 2023 14:04:22 -0500 Received: from mx0a-002e3701.pphosted.com (mx0a-002e3701.pphosted.com [148.163.147.86]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C6F7A266; Fri, 20 Jan 2023 11:04:21 -0800 (PST) Received: from pps.filterd (m0134420.ppops.net [127.0.0.1]) by mx0b-002e3701.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30KJ2Aha015174; Fri, 20 Jan 2023 19:03:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hpe.com; h=from : to : subject : date : message-id : in-reply-to : references : mime-version; s=pps0720; bh=PVPQCJsDpuWkC88LJUGMueCIN9wFdiVBHpz2S+5INNY=; b=alegycdDXE5Y+6aBVwF8OF98xfRdu1x0Empw1DREq4o03LZcllFBnEEte6ilfIESm163 fctdSZvj8LGk3pROkVKzRLOoaIj7OKbvzvKLllNkGbSVLVBMEjNyomNsNPAcddivn9Zl NdWsg3GeO+1jQNZJjjtb8wtR4JI2Q11Ih065022Y5R/6KB+pN/dEzIv2N26KV8Z6py+l wCeBAUDo0bd0sbjxg5aZ3LgnGbdZ4wd6glcfcA2qVO/TKF3ZwAUXKi65FvNBLmV5aGW2 V2d5S/q6Xw16q1kuvZthlHdhvtvNvoakXuyzkWzuGI/guaxID/trED2OQ+OwtCATHXN2 Wg== Received: from p1lg14880.it.hpe.com (p1lg14880.it.hpe.com [16.230.97.201]) by mx0b-002e3701.pphosted.com (PPS) with ESMTPS id 3n7upv382t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 20 Jan 2023 19:03:56 +0000 Received: from p1lg14886.dc01.its.hpecorp.net (unknown [10.119.18.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by p1lg14880.it.hpe.com (Postfix) with ESMTPS id 45C4F807EF3; Fri, 20 Jan 2023 19:03:56 +0000 (UTC) Received: from hpe.com (unknown [16.231.227.36]) by p1lg14886.dc01.its.hpecorp.net (Postfix) with ESMTP id C2D30802F29; Fri, 20 Jan 2023 19:03:55 +0000 (UTC) From: nick.hawkins@hpe.com To: verdun@hpe.com, nick.hawkins@hpe.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, joel@jms.id.au, linux@armlinux.org.uk, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/5] dt-bindings: i2c: Add hpe,gxp-i2c Date: Fri, 20 Jan 2023 13:01:56 -0600 Message-Id: <20230120190159.23459-3-nick.hawkins@hpe.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230120190159.23459-1-nick.hawkins@hpe.com> References: <20230120190159.23459-1-nick.hawkins@hpe.com> X-Proofpoint-GUID: nYyt_fUe4lXPewQFHPFtAr9xTIa_EsW- X-Proofpoint-ORIG-GUID: nYyt_fUe4lXPewQFHPFtAr9xTIa_EsW- X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-20_10,2023-01-20_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 adultscore=0 malwarescore=0 phishscore=0 mlxlogscore=999 spamscore=0 mlxscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301200180 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: Nick Hawkins Document compatibility string to support I2C controller in GXP. Signed-off-by: Nick Hawkins --- v3: *Provide better description with use of Phandle v2: *Removed uneccessary size-cells and address-cells *Removed phandle from hpe,sysreg-phandle *Changed hpe,i2c-max-bus-freq to clock-frequency --- .../devicetree/bindings/i2c/hpe,gxp-i2c.yaml | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml diff --git a/Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml b/Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml new file mode 100644 index 000000000000..63bc69e92d0e --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/hpe,gxp-i2c.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: HPE GXP SoC I2C Controller + +maintainers: + - Nick Hawkins + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +properties: + compatible: + const: hpe,gxp-i2c + + interrupts: + maxItems: 1 + + reg: + maxItems: 1 + + clock-frequency: + default: 100000 + + hpe,sysreg: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to a global status and enable registers shared + between each I2C controller instance. Each bit of the + registers represents an individual I2C engine. + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + i2c@2600 { + compatible = "hpe,gxp-i2c"; + reg = <0x2500 0x70>; + interrupts = <9>; + #address-cells = <1>; + #size-cells = <0>; + hpe,sysreg = <&sysreg_system_controller>; + clock-frequency = <10000>; + + eeprom@50 { + compatible = "atmel,24c128"; + reg = <0x50>; + }; + };