From nobody Fri Dec 19 09:50:26 2025 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AC1ED74092; Mon, 18 Dec 2023 15:41:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="H3mqX1MK" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-6d84b68a866so440332b3a.0; Mon, 18 Dec 2023 07:41:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702914084; x=1703518884; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=cfAmnqaK+W/dhF70JOgLBVhhTwo8kK7NvyUkbJBYbfc=; b=H3mqX1MKFl7vWpY8ZPTxZLUGw88FH4nKJcIfZTOQrPZQbK+bAhiMuDFqH87nfE0AtK 6nLXB/l3Ldx9WOOeNsz0Em7xQs/LD+jJwPMikA8e2Ze6y8qBWftUpoWWbCwyuNtHu7Tl iQInReSsJ+SVi6g34G4XyBKrHr7+K6ZhJKp4TBbRsLTmx/1NA0pt+5pcFaJPGr7+iAHT q1aGufltBlSFWst6vlcIHA4WaCaJNRogXFfIBKVf7aTaKBQEc3+kgVbmRjnCHFlSGe05 +OQGmlBEGxF3UAmTKr4yv/C48mS+2KBKJrEAzuWlEXepKITr5ul89lEz2yl78zLPim0x kCUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702914084; x=1703518884; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=cfAmnqaK+W/dhF70JOgLBVhhTwo8kK7NvyUkbJBYbfc=; b=iRSE+pAqh7ZHi4WxkeLNF/k9HbzczNIk730CuxsYj/FjESxtkWGdSg3ix0TqFbR7d0 DShuAFYEtF+a/MZtR+8OtuaOZa5ehUcw5HWy38x+owf5NVPmGepLQCWzSnsfyLyQfmGb 7jXN1zpr0eFUQHIJvHRwcUrousAtfbMOYY2Y2VcytmoJ489UfZ2FkAoCXlObpWAEGDSi FeIk+3gVHe+HPSW94ShLXeIZyDQcppQjqFKEWGHuf7h+jiT/iUXgsqt+TrRRI9LcQFVP KqValUnxOHXPHUPGUiTjAzEVu7F5ou5eo0lh1lQvA1cFvVCQu1XJH4a7Mwdo5zUzSbBn k6vw== X-Gm-Message-State: AOJu0Yw3Xlt+RUWbA62Ags5pWe7sckRMsmsbvHwWqeB+aBP69Km54/fW dnT91Qk1acCDDwYarFUbo04= X-Google-Smtp-Source: AGHT+IEiZJl8YCqQLmp7AiYlERLHpMmZWeiPMOQe88HWKtWq23SpuNXK78B298bkLHJrQM2ymNRDGw== X-Received: by 2002:a05:6a20:144a:b0:194:8a59:8255 with SMTP id a10-20020a056a20144a00b001948a598255mr393436pzi.72.1702914083771; Mon, 18 Dec 2023 07:41:23 -0800 (PST) Received: from arch.localdomain ([134.209.105.58]) by smtp.gmail.com with ESMTPSA id q23-20020a62e117000000b006d0951e74cbsm4539666pfh.178.2023.12.18.07.41.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Dec 2023 07:41:23 -0800 (PST) From: Jun Yan To: Jonathan.Cameron@huawei.com Cc: lars@metafoo.de, Qing-wu.Li@leica-geosystems.com.cn, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Jun Yan Subject: [PATCH] iio: accel: bmi088: add i2c support for bmi088 accel driver Date: Mon, 18 Dec 2023 23:40:45 +0800 Message-ID: <20231218154045.219317-1-jerrysteve1101@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The BMI088, BMI085 and BMI090L accelerometer also support I2C protocol, so let's add the missing I2C support. The I2C interface of the {BMI085,BMI088,BMI090L} is compatible with the I2C= Specification UM10204 Rev. 03 (19 June 2007), available at http://www.nxp.com. The {BMI085,BMI088,BMI090L} support= s I2C standard mode and fast mode, only 7-bit address mode is supported.[1][2][3] [1]: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datashe= ets/bst-bmi085-ds001.pdf [2]: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datashe= ets/bst-bmi088-ds001.pdf [3]: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/4807/BST-= BMI090L-DS000-00.pdf Signed-off-by: Jun Yan --- drivers/iio/accel/Kconfig | 8 +++- drivers/iio/accel/Makefile | 1 + drivers/iio/accel/bmi088-accel-i2c.c | 69 ++++++++++++++++++++++++++++ 3 files changed, 76 insertions(+), 2 deletions(-) create mode 100644 drivers/iio/accel/bmi088-accel-i2c.c diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 91adcac875a4..dc92cf599acb 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -254,11 +254,11 @@ config BMC150_ACCEL_SPI =20 config BMI088_ACCEL tristate "Bosch BMI088 Accelerometer Driver" - depends on SPI select IIO_BUFFER select IIO_TRIGGERED_BUFFER select REGMAP - select BMI088_ACCEL_SPI + select BMI088_ACCEL_SPI if SPI + select BMI088_ACCEL_I2C if I2C help Say yes here to build support for the following Bosch accelerometers: BMI088, BMI085, BMI090L. Note that all of these are combo module that @@ -267,6 +267,10 @@ config BMI088_ACCEL This driver only implements the accelerometer part, which has its own address and register map. BMG160 provides the gyroscope driver. =20 +config BMI088_ACCEL_I2C + tristate + select REGMAP_I2C + config BMI088_ACCEL_SPI tristate select REGMAP_SPI diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile index 311ead9c3ef1..db90532ba24a 100644 --- a/drivers/iio/accel/Makefile +++ b/drivers/iio/accel/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_BMC150_ACCEL) +=3D bmc150-accel-core.o obj-$(CONFIG_BMC150_ACCEL_I2C) +=3D bmc150-accel-i2c.o obj-$(CONFIG_BMC150_ACCEL_SPI) +=3D bmc150-accel-spi.o obj-$(CONFIG_BMI088_ACCEL) +=3D bmi088-accel-core.o +obj-$(CONFIG_BMI088_ACCEL_I2C) +=3D bmi088-accel-i2c.o obj-$(CONFIG_BMI088_ACCEL_SPI) +=3D bmi088-accel-spi.o obj-$(CONFIG_DA280) +=3D da280.o obj-$(CONFIG_DA311) +=3D da311.o diff --git a/drivers/iio/accel/bmi088-accel-i2c.c b/drivers/iio/accel/bmi08= 8-accel-i2c.c new file mode 100644 index 000000000000..1dcca0e88c1a --- /dev/null +++ b/drivers/iio/accel/bmi088-accel-i2c.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 3-axis accelerometer driver supporting following Bosch-Sensortec chips: + * - BMI088 + * - BMI085 + * - BMI090L + * + * Copyright 2023 Jun Yan + */ + +#include +#include +#include +#include + +#include "bmi088-accel.h" + +static int bmi088_accel_probe(struct i2c_device *i2c) +{ + struct regmap *regmap; + const struct i2c_device_id *id =3D i2c_get_device_id(i2c); + + regmap =3D devm_regmap_init_i2c(&i2c->dev, &bmi088_regmap_conf); + if (IS_ERR(regmap)) { + dev_err(&i2c->dev, "Failed to initialize i2c regmap\n"); + return PTR_ERR(regmap); + } + + return bmi088_accel_core_probe(&i2c->dev, regmap, i2c->irq, + id->driver_data); +} + +static void bmi088_accel_remove(struct i2c_device *i2c) +{ + bmi088_accel_core_remove(&i2c->dev); +} + +static const struct of_device_id bmi088_of_match[] =3D { + { .compatible =3D "bosch,bmi085-accel" }, + { .compatible =3D "bosch,bmi088-accel" }, + { .compatible =3D "bosch,bmi090l-accel" }, + {} +}; +MODULE_DEVICE_TABLE(of, bmi088_of_match); + +static const struct i2c_device_id bmi088_accel_id[] =3D { + {"bmi085-accel", BOSCH_BMI085}, + {"bmi088-accel", BOSCH_BMI088}, + {"bmi090l-accel", BOSCH_BMI090L}, + {} +}; +MODULE_DEVICE_TABLE(i2c, bmi088_accel_id); + +static struct i2c_driver bmi088_accel_driver =3D { + .driver =3D { + .name =3D "bmi088_accel_i2c", + .pm =3D pm_ptr(&bmi088_accel_pm_ops), + .of_match_table =3D bmi088_of_match, + }, + .probe =3D bmi088_accel_probe, + .remove =3D bmi088_accel_remove, + .id_table =3D bmi088_accel_id, +}; +module_i2c_driver(bmi088_accel_driver); + +MODULE_AUTHOR("Jun Yan "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("BMI088 accelerometer driver (I2C)"); +MODULE_IMPORT_NS(IIO_BMI088); --=20 2.43.0