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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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230120_110419_325021_1818AC36 X-CRM114-Status: GOOD ( 18.11 ) 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 --- 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>; + }; + };