From patchwork Mon Apr 15 19:19:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 10901443 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2218814DB for ; Mon, 15 Apr 2019 19:20:41 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 065BA28924 for ; Mon, 15 Apr 2019 19:20:41 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id ED05B2892A; Mon, 15 Apr 2019 19:20:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 51E7728924 for ; Mon, 15 Apr 2019 19:20:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731386AbfDOTUd (ORCPT ); Mon, 15 Apr 2019 15:20:33 -0400 Received: from smtprelay.synopsys.com ([198.182.60.111]:57388 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728287AbfDOTUc (ORCPT ); Mon, 15 Apr 2019 15:20:32 -0400 Received: from mailhost1.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id D7EFD10C128D; Mon, 15 Apr 2019 12:20:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1555356031; bh=8qBx60iIv6iNiOzwKuaHb7f4i/8Ls8vAfFBAU+CsOTI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=IfUfiSxYIUmtyXozKHRJx3kyCxpdzJKNxkn1p2Vj7YZIX0sWsDMC5ev44J3L6XkoS fEIpQasNzMaraP3tmXPAfEUaZ5+875uklAnsU6pjUw4O+Gs0ER+qwz1+Vb105FLWBm NEYO1eE/IDkXEFlrNy1a4syfhtbT9ZvTFEMVON86HA7YNZ4bGY/2fLgyd+rBjQrL3a qeao9DaLyXo5mpOCtOMJkdWUYfP+IfhwaCtphkKiVHPjStTdYjO5wAlgj3dP1ptXpi Vxeid36W/B9Clkc31SUnAOPTCFk6HyYTalFrmRQFHy7o5rmXaioax1eL37qGFndg8Y 1+LQ27VggQLug== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost1.synopsys.com (Postfix) with ESMTP id 17C115536; Mon, 15 Apr 2019 12:19:58 -0700 (PDT) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Cc: pmeerw@pmeerw.net, lars@metafoo.de, knaack.h@gmx.de, jic23@kernel.org, lorenzo.bianconi83@gmail.com, bbrezillon@kernel.org, rafael@kernel.org, gregkh@linuxfoundation.org, broonie@kernel.org, joao.pinto@synopsys.com, Vitor Soares Subject: [PATCH 3/3] iio: imu: st_lsm6dsx: Add i3c basic support Date: Mon, 15 Apr 2019 21:19:41 +0200 Message-Id: <302f8296299d6cd25b3689f5eca1c510a3290db3.1555354268.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP For today the st_lsm6dsx driver support lsm6dso sensor only in spi and i2c mode. The lsm6dso is also i3c capable so lets give i3c support to it. Signed-off-by: Vitor Soares --- drivers/iio/imu/st_lsm6dsx/Kconfig | 8 +++- drivers/iio/imu/st_lsm6dsx/Makefile | 1 + drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c | 67 +++++++++++++++++++++++++++++ 3 files changed, 75 insertions(+), 1 deletion(-) create mode 100644 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c + diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig index 094fd00..1ab9bbf 100644 --- a/drivers/iio/imu/st_lsm6dsx/Kconfig +++ b/drivers/iio/imu/st_lsm6dsx/Kconfig @@ -1,11 +1,12 @@ config IIO_ST_LSM6DSX tristate "ST_LSM6DSx driver for STM 6-axis IMU MEMS sensors" - depends on (I2C || SPI) + depends on (I2C || SPI || I3C) select IIO_BUFFER select IIO_KFIFO_BUF select IIO_ST_LSM6DSX_I2C if (I2C) select IIO_ST_LSM6DSX_SPI if (SPI_MASTER) + select IIO_ST_LSM6DSX_I3C if (I3C) help Say yes here to build support for STMicroelectronics LSM6DSx imu sensor. Supported devices: lsm6ds3, lsm6ds3h, lsm6dsl, lsm6dsm, @@ -23,3 +24,8 @@ config IIO_ST_LSM6DSX_SPI tristate depends on IIO_ST_LSM6DSX select REGMAP_SPI + +config IIO_ST_LSM6DSX_I3C + tristate + depends on IIO_ST_LSM6DSX + select REGMAP_I3C diff --git a/drivers/iio/imu/st_lsm6dsx/Makefile b/drivers/iio/imu/st_lsm6dsx/Makefile index e5f733c..c676965 100644 --- a/drivers/iio/imu/st_lsm6dsx/Makefile +++ b/drivers/iio/imu/st_lsm6dsx/Makefile @@ -4,3 +4,4 @@ st_lsm6dsx-y := st_lsm6dsx_core.o st_lsm6dsx_buffer.o \ obj-$(CONFIG_IIO_ST_LSM6DSX) += st_lsm6dsx.o obj-$(CONFIG_IIO_ST_LSM6DSX_I2C) += st_lsm6dsx_i2c.o obj-$(CONFIG_IIO_ST_LSM6DSX_SPI) += st_lsm6dsx_spi.o +obj-$(CONFIG_IIO_ST_LSM6DSX_I3C) += st_lsm6dsx_i3c.o diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c new file mode 100644 index 0000000..2df5e70 --- /dev/null +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates. + * + * Author: Vitor Soares + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "st_lsm6dsx.h" + +#define NAME_SIZE 32 + +struct st_lsm6dsx_i3c_data { + char name[NAME_SIZE]; + enum st_lsm6dsx_hw_id id; +}; + +static const struct st_lsm6dsx_i3c_data hw_data[] = { + { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID }, +}; + +static const struct regmap_config st_lsm6dsx_i3c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, +}; + +static int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev) +{ + const struct i3c_device_id *id = i3c_get_device_id(i3cdev); + const struct st_lsm6dsx_i3c_data *hw_data = id->data; + struct regmap *regmap; + + regmap = devm_regmap_init_i3c(i3cdev, &st_lsm6dsx_i3c_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&i3cdev->dev, "Failed to register i3c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return st_lsm6dsx_probe(&i3cdev->dev, 0, hw_data->id, + hw_data->name, regmap); +} + + +static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = { + I3C_DEVICE(0x0104, 0x006C, &hw_data[0]), + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids); + +static struct i3c_driver st_lsm6dsx_driver = { + .driver.name = "st_lsm6dsx_i3c", + .probe = st_lsm6dsx_i3c_probe, + .id_table = st_lsm6dsx_i3c_ids, +}; +module_i3c_driver(st_lsm6dsx_driver); + +MODULE_AUTHOR("Vitor Soares "); +MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i3c driver"); +MODULE_LICENSE("GPL v2");