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Fri, 19 Jul 2019 13:30:57 +0000 (UTC) Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by de02.synopsys.com (Postfix) with ESMTP id 06F383EBC9; Fri, 19 Jul 2019 15:30:57 +0200 (CEST) From: Vitor Soares To: linux-iio@vger.kernel.org, linux-i3c@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 2/2] iio: imu: st_lsm6dsx: add i3c basic support for LSM6DSO and LSM6DSR Date: Fri, 19 Jul 2019 15:30:55 +0200 Message-Id: <77c709aca8607f31f141ee7c4dc28bf89266bd23.1563542515.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_063103_285824_2B109468 X-CRM114-Status: GOOD ( 15.68 ) 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org 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 v6: none 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"); -- 2.7.4 _______________________________________________ linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c