From patchwork Wed Jul 10 14:56:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 11043425 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 84EE96C5 for ; Mon, 15 Jul 2019 07:25:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6C886203B9 for ; Mon, 15 Jul 2019 07:25:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6102B21FAC; Mon, 15 Jul 2019 07:25:03 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1A66427E5A for ; Mon, 15 Jul 2019 07:25:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=tAjOAfvaj+VsriRB0OXfaIwd8qdekaoSV9XpKrzFdvo=; b=WB7GuGv5hXVxgdlRnwP2ztmw0V eNVjHdITWtJRb7yXqVYuYeA7FiCUFbTE/O1Cm40+43tm/kJGdILi6Y+izAI+bJKn2CpZBmyBe0nM/ d52k72I4uQaknA7IMSanB1LJ5t0ZSYtZwn45YJB2+6QZBgAH8zo3sWR8bSKD8kw7kSzPzs8VgCPVT UxIgJsSl9GOTsk8Zi9fi471hOPZyxQpG6PJ5ZiPkdZp7eE4DLmmG8aApaJPwIxmDg2p83qjCWc1cE qTBX1F+cHiYeJepxrtRplZIYSxYQfQR9MRbHEqaRJnWEyMcOALsD5/1lQHdB0WoXorwx59+Ze+CjN YvYVgAHQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hmvM5-0000sv-LQ; Mon, 15 Jul 2019 07:25:01 +0000 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102] helo=smtprelay-out1.synopsys.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hlE1W-0000Or-Lv for linux-i3c@lists.infradead.org; Wed, 10 Jul 2019 14:56:48 +0000 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id BFFCDC29DA; Wed, 10 Jul 2019 14:56:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1562770604; bh=1V12/8vGPInih5p0qyGvRVu7+Sn4cjnbPSEjTahhJIU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=LKToBncgunSxfr2w1kcVAXG8s8lQF8yjGRfJUNWE8SXCQ1Qh/5SxyYlE0kee+Wv79 3uUsg0CKONgCu3UP3mUzOgRlDSer4Crk7zer/ZpK2bNJq2mp4l58UVdHNDy+span9j z2CLPkbdZRIBnxMFHTSXDmTzVvC73UirF/GHw6cUkMzDDWX8Tt0D+Y4EO40Ba/fPAh TYS3ULJ2IgTME+H5EB1OukR831gVIPv7jt41bDIYtve/KIc/FYMD+WZoxCiNpKDB04 YugI3T4lgi1npV1n4kB8N+v4xBqpJS1IbLr+uuImiY28oKrrhswAjhC1tZGxmEKvaT GUZp3jsTjR4dQ== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 48A7CA005C; Wed, 10 Jul 2019 14:56:42 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 061C23FA39; Wed, 10 Jul 2019 16:56:42 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/3] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Date: Wed, 10 Jul 2019 16:56:39 +0200 Message-Id: <73955529ae0c31f428221abb88031ab3b4165659.1562767521.git.vitor.soares@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190710_075646_722341_5655E5A9 X-CRM114-Status: GOOD ( 15.98 ) X-Mailman-Approved-At: Mon, 15 Jul 2019 00:24:58 -0700 X-BeenThere: linux-i3c@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux I3C List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Joao.Pinto@synopsys.com, rafael@kernel.org, gregkh@linuxfoundation.org, Vitor Soares , broonie@kernel.org, bbrezillon@knernel.org, lorenzo@kernel.org MIME-Version: 1.0 Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP For today the st_lsm6dsx driver support LSM6DSO and LSM6DSR sensor only in spi and i2c mode. The LSM6DSO and LSM6DSR are also i3c capable so lets give i3c support to them. Signed-off-by: Vitor Soares Acked-by: Lorenzo Bianconi --- Changes in v3: Remove unnecessary st_lsm6dsx_i3c_data table used to hold device name Use st_lsm6dsx_probe new form Changes in v2: Add support for LSM6DSR Set pm_ops to st_lsm6dsx_pm_ops drivers/iio/imu/st_lsm6dsx/Kconfig | 8 +++- drivers/iio/imu/st_lsm6dsx/Makefile | 1 + drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c | 61 +++++++++++++++++++++++++++++ 3 files changed, 69 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 9e59297..6b5a73c 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..f683754 --- /dev/null +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c @@ -0,0 +1,61 @@ +// 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" + +static const struct i3c_device_id st_lsm6dsx_i3c_ids[]; + +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_device_match_id(i3cdev, + st_lsm6dsx_i3c_ids); + struct regmap *regmap; + int hw_id = (int)id->data; + + 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_id, regmap); +} + +static const struct i3c_device_id st_lsm6dsx_i3c_ids[] = { + I3C_DEVICE(0x0104, 0x006C, (void *)ST_LSM6DSO_ID), + I3C_DEVICE(0x0104, 0x006B, (void *)ST_LSM6DSR_ID), + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(i3c, st_lsm6dsx_i3c_ids); + +static struct i3c_driver st_lsm6dsx_driver = { + .driver = { + .name = "st_lsm6dsx_i3c", + .pm = &st_lsm6dsx_pm_ops, + }, + .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");