From patchwork Fri Feb 17 15:50:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Hawkins, Nick" X-Patchwork-Id: 13144976 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 12636C6379F for ; Fri, 17 Feb 2023 15:56:42 +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:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SHk6GdJ+d0UGPAm7A1ydd4K07JNfXnp7Ln8cqisxEc4=; b=AeDQrlQHgKyrtv Bo1wBJFm8GiO44fWLawX7MhSGcitz0VdrHCpBuSkfiLnf7o4IOmL4o96jX5xWHN4/7U3xNIf6H4wG nDi1kIM//G6qJ6p0llXV+ZDAiX/OlpNtv6hn2gtU22ZPeveRmLKUF1n1f9yP1pfLELPDqKUchDc4z 1IpxojYAcE9m+qVnNMDRBhKiuwCLWAgjB7M1Pe2YQq3PjQble0UwdVzW2DVmxfGZ09PpM74a4z4lr wMEk3nYcquPA1HZSN9oKi+RfQjyyguGsDXy/WEop48+j06ZnLQ0F9re18sXx1JA1b1vetCitV7y9l jCfVLDq8TWoNRjmRRIrA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pT353-00Evfp-LX; Fri, 17 Feb 2023 15:55:25 +0000 Received: from mx0a-002e3701.pphosted.com ([148.163.147.86]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pT34s-00Evbn-9W for linux-arm-kernel@lists.infradead.org; Fri, 17 Feb 2023 15:55:15 +0000 Received: from pps.filterd (m0150242.ppops.net [127.0.0.1]) by mx0a-002e3701.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31HEC67R020741; Fri, 17 Feb 2023 15:54:57 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=b71fkatlNICCwbxVOrGgkq1hzsUvLsNK8hi0tK83NxQ=; b=PUU1HMuz4Xz+Lza+zLx3WtHeK5aGF85NjPvyetihGLZqdR8XdzumplBJUOmBUibT14vk skwDYL2jHPPEAgqvLrArbXJg/JJLxLB+zhM1u7nL4oi0150PAqbJWOjFCRRdusfEgHyk 0v6DA+xMNUAWdR6Rp3IRL+QAYRvsmr0hSVABEengxfXnuNfto9muW2dfcXa0qNKs2gWl tdCfeax4pz6GtgGPmbqQWXiK2KnzPQtwheccQ/8T6AFpau/qwUZCYUkCNr2yhJlRNCMU ClUFH+VIkwi8lDFyJy7Cw/iikeYd2lv87WPCoJRZXKOsnUmwn7o2uLSwy/FQTn3JWd1I Ng== Received: from p1lg14881.it.hpe.com (p1lg14881.it.hpe.com [16.230.97.202]) by mx0a-002e3701.pphosted.com (PPS) with ESMTPS id 3ntanfsmwb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 17 Feb 2023 15:54:57 +0000 Received: from p1lg14885.dc01.its.hpecorp.net (unknown [10.119.18.236]) (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 p1lg14881.it.hpe.com (Postfix) with ESMTPS id B92F6805E62; Fri, 17 Feb 2023 15:54:56 +0000 (UTC) Received: from hpe.com (unknown [16.231.227.36]) by p1lg14885.dc01.its.hpecorp.net (Postfix) with ESMTP id D151F808DAA; Fri, 17 Feb 2023 15:54:55 +0000 (UTC) From: nick.hawkins@hpe.com To: verdun@hpe.com, nick.hawkins@hpe.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux@armlinux.org.uk, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, wsa@kernel.org Subject: [PATCH v5 2/5] dt-bindings: i2c: Add hpe,gxp-i2c Date: Fri, 17 Feb 2023 09:50:51 -0600 Message-Id: <20230217155054.99757-3-nick.hawkins@hpe.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230217155054.99757-1-nick.hawkins@hpe.com> References: <20230217155054.99757-1-nick.hawkins@hpe.com> X-Proofpoint-ORIG-GUID: Wr5W0DxXH8HCOVoNRwTTj3t-CMjgToze X-Proofpoint-GUID: Wr5W0DxXH8HCOVoNRwTTj3t-CMjgToze 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:17.11.170.22 definitions=2023-02-17_10,2023-02-17_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 spamscore=0 clxscore=1015 bulkscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302170141 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230217_075514_374482_BD84556D X-CRM114-Status: GOOD ( 18.50 ) 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 From: Nick Hawkins Document compatibility string to support I2C controller in GXP. Signed-off-by: Nick Hawkins --- v5: *No change v4: *Provide even greater description with the use of Phandle *Reorder properties so they match the required order 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 | 59 +++++++++++++++++++ 1 file changed, 59 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..6604dcd47251 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml @@ -0,0 +1,59 @@ +# 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 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clock-frequency: + default: 100000 + + hpe,sysreg: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the global status and enable interrupt registers shared + between each I2C engine controller instance. It enables the I2C + engine controller to act as both a master or slave by being able to + arm and respond to interrupts from its engine. Each bit in the + registers represent the respective bit position. + +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>; + }; + };