Message ID | 20230217155054.99757-1-nick.hawkins@hpe.com |
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Headers | show
Return-Path: <linux-i2c-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=hpe.com header.i=@hpe.com header.a=rsa-sha256 header.s=pps0720 header.b=b/fB4xvy; dkim-atps=neutral Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4PJGcF08Kmz23yJ for <incoming@patchwork.ozlabs.org>; Sat, 18 Feb 2023 02:55:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230417AbjBQPzV (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Fri, 17 Feb 2023 10:55:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230404AbjBQPzS (ORCPT <rfc822;linux-i2c@vger.kernel.org>); Fri, 17 Feb 2023 10:55:18 -0500 Received: from mx0a-002e3701.pphosted.com (mx0a-002e3701.pphosted.com [148.163.147.86]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A2526782F; Fri, 17 Feb 2023 07:55:17 -0800 (PST) Received: from pps.filterd (m0134422.ppops.net [127.0.0.1]) by mx0b-002e3701.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31HEP4UB005924; Fri, 17 Feb 2023 15:54:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hpe.com; h=from : to : subject : date : message-id; s=pps0720; bh=4OUr6pL09KN9lLfyZ7+aT6RKEnK7PkGU9uIG3Tj1ADg=; b=b/fB4xvy49JGUD/Ydgi91DeWbsfAE2O8PMTxvMScgqo3g3/M0LlUyxwkuyhGbXrVQrRR xApIp34Z2L+8o7WNL/bXSeyeBHElvawTQu/2wjymjc7pP1JHHPNuB/ew55662cBx4dW2 MQu6snhhckxCFoNFtAN30ylMSv73GzlPo62MqjUd6Uc/1KWIb1QDCqdkFAPtkbaYKOR7 vX6omDMVfqAD9fns8/QPUuxsX1Js5gn3FCfphfthrszoH0vWbwGOL0CI+Nef/eg3X3j4 FcqygeEzEVM3FlPi2GYOawY05qnoMdv8VCci6AC3xnRII83QM91XJczVBo8WNlBwJr8a CA== Received: from p1lg14880.it.hpe.com (p1lg14880.it.hpe.com [16.230.97.201]) by mx0b-002e3701.pphosted.com (PPS) with ESMTPS id 3ntbak8xk8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 17 Feb 2023 15:54:56 +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 p1lg14880.it.hpe.com (Postfix) with ESMTPS id 06508800354; Fri, 17 Feb 2023 15:54:54 +0000 (UTC) Received: from hpe.com (unknown [16.231.227.36]) by p1lg14885.dc01.its.hpecorp.net (Postfix) with ESMTP id D22978071C3; Fri, 17 Feb 2023 15:54:53 +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 0/5] ARM: Add GXP I2C Support Date: Fri, 17 Feb 2023 09:50:49 -0600 Message-Id: <20230217155054.99757-1-nick.hawkins@hpe.com> X-Mailer: git-send-email 2.17.1 X-Proofpoint-ORIG-GUID: xXcB28YSWEo46jHpmwW9z7fsc_bV8GxF X-Proofpoint-GUID: xXcB28YSWEo46jHpmwW9z7fsc_bV8GxF 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 malwarescore=0 mlxlogscore=952 bulkscore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 mlxscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302170140 X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-i2c.vger.kernel.org> X-Mailing-List: linux-i2c@vger.kernel.org |
Series | ARM: Add GXP I2C Support | expand |
From: Nick Hawkins <nick.hawkins@hpe.com> The GXP SoC supports 10 I2C engines. Each I2C engine is completely independent and can function both as an I2C master and I2C slave. The I2C master can operate in a multi master environment. The engines support a scalable speed from 8kHZ to 1.5 Mhz. --- Changes since v4: *Removed use of i2c_global_init_done *Removed use of if else case for inline conditional *Removed error messages for timeouts and NACKS *Added bit definitions to replace magic values *Fix build error *Relocate Kconfig definition Changes since v3: *Switch engine variable to u32 *Disable IRQ on device remove with register write instead *Provided even greater description with the use of Phandle Changes since v2: *Disable IRQ on a device remove *Remove use of I2C_CLASS_DEPRECATED *Use i2c_parse_fw_timings instead of of_property_read_u32 *Remove redundant dev_err_probe as platform_get_irq already has one *Used __iomem instead of res->start to find physical address *Use BIT in gxp_i2c_irq_handler *Made value u8 instead of u16 for u8 read *Provided a better description of Phandle in yaml Changes since v1: *Removed yaml documentation of hpe,gxp-sysreg as it has been applied to syscon.yaml *Made i2cX a generic node name i2c in dts file *Added status field to the dtsi and the dts for i2c bus *Removed unnecessary size-cells and address-cells from yaml *Removed phandle from hpe,sysreg-phandle *Changed hpe,i2c-max-bus-freq to clock-frequency *Removed rogue tab in structure definition *Removed use of __iomem *base local variables as it was unnecessary *Switched #if IS_ENABLED() -> if (IS_ENABLED()) inside functions *Removed use of pr_* functions *Removed informational prints in register and unregister functions *Removed print from interrupt handler *Removed informational prints from probe function *Switched dev_err -> dev_err_probe in probe function *Used the respective helper for mapping the resource to __iomem* Nick Hawkins (5): i2c: hpe: Add GXP SoC I2C Controller dt-bindings: i2c: Add hpe,gxp-i2c ARM: dts: hpe: Add I2C Topology ARM: multi_v7_defconfig: add gxp i2c module MAINTAINERS: Add HPE GXP I2C Support .../devicetree/bindings/i2c/hpe,gxp-i2c.yaml | 59 ++ MAINTAINERS | 2 + arch/arm/boot/dts/hpe-bmc-dl360gen10.dts | 109 +++ arch/arm/boot/dts/hpe-gxp.dtsi | 125 ++++ arch/arm/configs/multi_v7_defconfig | 1 + drivers/i2c/busses/Kconfig | 7 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-gxp.c | 620 ++++++++++++++++++ 8 files changed, 924 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/hpe,gxp-i2c.yaml create mode 100644 drivers/i2c/busses/i2c-gxp.c