From patchwork Fri Jul 19 11:19:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 11050019 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 42181746 for ; Fri, 19 Jul 2019 11:19:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2CDDF28823 for ; Fri, 19 Jul 2019 11:19:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 19932287BD; Fri, 19 Jul 2019 11:19:34 +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 990E5283C9 for ; Fri, 19 Jul 2019 11:19:33 +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=NJVzIObvJKntm3sOya8ylwWC8oHuVUrvjN35cRXJn7M=; b=O+3D3/DuXecUkawSMXgPK1S4yp NHUogC3ny7U+yB6ByyBriuJm7eENF8+XlR4Ea+T8FkTK11ZNvKx4h0lnz0OXdKvurmhZ/7NHfURPB 4lbVpJygzhkBzx/Mp6nU48R3WJiKr1w1KbjQC6kTKzC6/GmfMjaBi7m/EIWFmTarVuLc/8juVXmBQ xjRfkfn8vKZI2TyiLqTnQpQa+8GFYM9QUQj+eXztpHakbg2KIvqEw94mQzvUMckhqnSjHaqaRCSrT 3QJ1C9lj/GjcCrTpA8nfscoXrmltkvwhvZ3wXZMcUPF7SRybMACqVDPA82Gc3BXXskhhRVGpOQeOK ckIqKjdA==; 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 1hoQvF-0007S7-4g; Fri, 19 Jul 2019 11:19:33 +0000 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hoQvC-0007R2-BB for linux-i3c@lists.infradead.org; Fri, 19 Jul 2019 11:19:31 +0000 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (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 5F050C1211; Fri, 19 Jul 2019 11:19:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1563535168; bh=ozY6liiCOB5Amv30ZINSKCf5LrlfWFBv/ReyJjaLhQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=glqCLQAgPVlRGhdUj8UaYqexWLu9qKQzme1Lq2/SGUBKkj4sktVhz2gJnvlFQyS/h bMyOgRBU8HntVIGfh6fIR9dvvJWwHRwzXyLnw2Kw+0F94HCIrSuOi6jU2odkxCrHEk QMikzNrsVlpisgHL3Ovp3OJNUWb6XizMLOa+ilaQOijJfVNSiRqJuu3Ej+o++HcpZX L6OL2gOFEFvMPJiUuVPMQ90224Ysf3ggVk/SHpq861NRx9yrHSK0DMQxsqI8uCihBA HvGUPDk2dNxUNVFCp7720mG5uSKxXADhuDxD/wdcycg+YKU8EVaFP73SxLU9moQtxu xJ/KfKyRMUxjw== Received: from de02.synopsys.com (de02.internal.synopsys.com [10.225.17.21]) by mailhost.synopsys.com (Postfix) with ESMTP id 8A899A0057; Fri, 19 Jul 2019 11:19:26 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 0F05C3CA31; Fri, 19 Jul 2019 13:19:26 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 1/2] i3c: move i3c_device_match_id to device.c and export it Date: Fri, 19 Jul 2019 13:19:04 +0200 Message-Id: <40addcc18ac82a3156cd86e153e2b4fc1de2fe54.1563533343.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-20190719_041930_400248_15C9FC6B X-CRM114-Status: GOOD ( 15.91 ) 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, bbrezillon@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, Vitor Soares , 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 Some I3C device drivers need to know which entry matches the i3c_device object passed to the probe function Let's move i3c_device_match_id() to device.c and export it so it can be used by drivers. Signed-off-by: Vitor Soares --- Changes in v5: Add kerneldoc Improve commit message Changes in v4: None Changes in v3: Remove i3c_get_device_id Move i3c_device_match_id from drivers/i3c/master.c to drivers/i3c/device.c Export i3c_device_match_id Changes in v2: move this function to drivers/i3c/device.c drivers/i3c/device.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/i3c/master.c | 45 --------------------------------------- include/linux/i3c/device.h | 4 ++++ 3 files changed, 57 insertions(+), 45 deletions(-) diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c index 69cc040..5349059 100644 --- a/drivers/i3c/device.c +++ b/drivers/i3c/device.c @@ -201,6 +201,59 @@ struct i3c_device *dev_to_i3cdev(struct device *dev) EXPORT_SYMBOL_GPL(dev_to_i3cdev); /** + * i3c_device_match_id() - Returns the I3C device match id in @i3cdev + * @i3cdev: I3C device + * @id_table: I3C device match table + * + * Return: a pointer to I3C device id object. + */ +const struct i3c_device_id * +i3c_device_match_id(struct i3c_device *i3cdev, + const struct i3c_device_id *id_table) +{ + struct i3c_device_info devinfo; + const struct i3c_device_id *id; + + i3c_device_get_info(i3cdev, &devinfo); + + /* + * The lower 32bits of the provisional ID is just filled with a random + * value, try to match using DCR info. + */ + if (!I3C_PID_RND_LOWER_32BITS(devinfo.pid)) { + u16 manuf = I3C_PID_MANUF_ID(devinfo.pid); + u16 part = I3C_PID_PART_ID(devinfo.pid); + u16 ext_info = I3C_PID_EXTRA_INFO(devinfo.pid); + + /* First try to match by manufacturer/part ID. */ + for (id = id_table; id->match_flags != 0; id++) { + if ((id->match_flags & I3C_MATCH_MANUF_AND_PART) != + I3C_MATCH_MANUF_AND_PART) + continue; + + if (manuf != id->manuf_id || part != id->part_id) + continue; + + if ((id->match_flags & I3C_MATCH_EXTRA_INFO) && + ext_info != id->extra_info) + continue; + + return id; + } + } + + /* Fallback to DCR match. */ + for (id = id_table; id->match_flags != 0; id++) { + if ((id->match_flags & I3C_MATCH_DCR) && + id->dcr == devinfo.dcr) + return id; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(i3c_device_match_id); + +/** * i3c_driver_register_with_owner() - register an I3C device driver * * @drv: driver to register diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c index 5f4bd52..7667f84 100644 --- a/drivers/i3c/master.c +++ b/drivers/i3c/master.c @@ -270,51 +270,6 @@ static const struct device_type i3c_device_type = { .uevent = i3c_device_uevent, }; -static const struct i3c_device_id * -i3c_device_match_id(struct i3c_device *i3cdev, - const struct i3c_device_id *id_table) -{ - struct i3c_device_info devinfo; - const struct i3c_device_id *id; - - i3c_device_get_info(i3cdev, &devinfo); - - /* - * The lower 32bits of the provisional ID is just filled with a random - * value, try to match using DCR info. - */ - if (!I3C_PID_RND_LOWER_32BITS(devinfo.pid)) { - u16 manuf = I3C_PID_MANUF_ID(devinfo.pid); - u16 part = I3C_PID_PART_ID(devinfo.pid); - u16 ext_info = I3C_PID_EXTRA_INFO(devinfo.pid); - - /* First try to match by manufacturer/part ID. */ - for (id = id_table; id->match_flags != 0; id++) { - if ((id->match_flags & I3C_MATCH_MANUF_AND_PART) != - I3C_MATCH_MANUF_AND_PART) - continue; - - if (manuf != id->manuf_id || part != id->part_id) - continue; - - if ((id->match_flags & I3C_MATCH_EXTRA_INFO) && - ext_info != id->extra_info) - continue; - - return id; - } - } - - /* Fallback to DCR match. */ - for (id = id_table; id->match_flags != 0; id++) { - if ((id->match_flags & I3C_MATCH_DCR) && - id->dcr == devinfo.dcr) - return id; - } - - return NULL; -} - static int i3c_device_match(struct device *dev, struct device_driver *drv) { struct i3c_device *i3cdev; diff --git a/include/linux/i3c/device.h b/include/linux/i3c/device.h index 5ecb055..de102e4 100644 --- a/include/linux/i3c/device.h +++ b/include/linux/i3c/device.h @@ -188,6 +188,10 @@ static inline struct i3c_driver *drv_to_i3cdrv(struct device_driver *drv) struct device *i3cdev_to_dev(struct i3c_device *i3cdev); struct i3c_device *dev_to_i3cdev(struct device *dev); +const struct i3c_device_id * +i3c_device_match_id(struct i3c_device *i3cdev, + const struct i3c_device_id *id_table); + static inline void i3cdev_set_drvdata(struct i3c_device *i3cdev, void *data) { From patchwork Fri Jul 19 11:19:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vitor Soares X-Patchwork-Id: 11050021 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 620F613B1 for ; Fri, 19 Jul 2019 11:19:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4FE06287A8 for ; Fri, 19 Jul 2019 11:19:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 444F1287AE; Fri, 19 Jul 2019 11:19:35 +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 D8DC9287A8 for ; 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Fri, 19 Jul 2019 11:19:26 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 211243CA34; Fri, 19 Jul 2019 13:19:26 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 2/2] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Date: Fri, 19 Jul 2019 13:19:05 +0200 Message-Id: <2a181b502eb69f8506873e2ff93239cbb4108e98.1563533343.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-20190719_041930_670665_70E59BF4 X-CRM114-Status: GOOD ( 15.78 ) 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, bbrezillon@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org, Vitor Soares , 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 let's give i3c support to them. Signed-off-by: Vitor Soares Acked-by: Lorenzo Bianconi Reviewed-by: Boris Brezillon --- Changes in v5: Move regmap_config declaration inside st_lsm6dsx_i3c_probe() Fix warning [-Wint-to-void-pointer-cast] when compiling in 64-bit arch Changes in v4: Remove hw_id variable 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 | 57 +++++++++++++++++++++++++++++ 3 files changed, 65 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..57e6331 --- /dev/null +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i3c.c @@ -0,0 +1,57 @@ +// 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[] = { + 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 int st_lsm6dsx_i3c_probe(struct i3c_device *i3cdev) +{ + struct regmap_config st_lsm6dsx_i3c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + }; + const struct i3c_device_id *id = i3c_device_match_id(i3cdev, + st_lsm6dsx_i3c_ids); + 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, (uintptr_t)id->data, regmap); +} + +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");