From patchwork Wed Mar 13 18:39:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rui Miguel Silva X-Patchwork-Id: 10851655 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 863F6139A for ; Wed, 13 Mar 2019 18:40:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7248F29E4D for ; Wed, 13 Mar 2019 18:40:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 658542A027; Wed, 13 Mar 2019 18:40:22 +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 E172829E4D for ; Wed, 13 Mar 2019 18:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727186AbfCMSkV (ORCPT ); Wed, 13 Mar 2019 14:40:21 -0400 Received: from mail-wm1-f67.google.com ([209.85.128.67]:53365 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727172AbfCMSkU (ORCPT ); Wed, 13 Mar 2019 14:40:20 -0400 Received: by mail-wm1-f67.google.com with SMTP id e74so339152wmg.3 for ; Wed, 13 Mar 2019 11:40:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2QCPTdmFK6cOLG6MFHJiz4CEb2BEdpfF4aAmH9h3POM=; b=yP2nxjQjHBlGOaT/JX1rOnnbO6g6gYCGNaUwaB7/aeZw0m65fvp269zHaM8+GMcniC omjygLJMYLKz/RqZiWA5eiSWzeDqBSHShfINgc+q+m450tgYFJ3EWvezOqiQVojIbflS tas37OzYuRQPV24CodqtlRnqSLM/QwbVuKlBJ1zMI0v0ujRm4eMBeIdbhIoIdLHrkHcI HJk8VOWLkfDhFCFWbOBUKuNhXFj95nb+Omv/YX+zBdcLg1a7jQe1RzSzWmniVtnN1SxF jaPHwuB+RSYULciJslOw3VfbSb/1ux8XBwZlkT3xccBDTfYJGTpdhUDzbGP7EJYe9Fni cjUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2QCPTdmFK6cOLG6MFHJiz4CEb2BEdpfF4aAmH9h3POM=; b=I7wn1lLTxjGpbZgZ1c/N4RcDvYwbhTgh2nXlLwR4mGsZXi2O+kteranNcU6M4EJeYV IgE9gE9Q7W8AnAUC135i9IhtVay4Cl1bJqa7dVgalOeU0luMNl1jWT/69vl1/GHuEChT oKRn+g9QWddVEVkvUbfgq70dbzwFQlN5196AH0Y2rL1f6uWQUC9/IhCxzMkM8IlcE8H0 hn4QQpsOxFpL6dxnVtpv5dxzLU6y34EdG4LY51KR2923k3vo/tTdixV4ow/9EyC4Za/H j5ft14eHOz0epU8GYbB81GvwwBz245fmudab9uze4hyLnDxdb8iHqv4PUF5IlM3GvC8d mXTQ== X-Gm-Message-State: APjAAAX0laNug9LcXKF+EK0Yv7va1qR1lSRl/2G8OJ2XgGwI6KsSpZzT p/gnn99URG4QFr8qjPKdeY92pOZaS481Ng== X-Google-Smtp-Source: APXvYqxJtDuBcEjnlGp+1+1P17Lf1wpi3JV5+oLynr/DWg6uEn94CxunKVtEh7GDXujEW/Pq6pnrDg== X-Received: by 2002:a1c:9e97:: with SMTP id h145mr3212380wme.147.1552502417952; Wed, 13 Mar 2019 11:40:17 -0700 (PDT) Received: from arch-late.localdomain ([87.196.73.151]) by smtp.gmail.com with ESMTPSA id p17sm3829660wmi.35.2019.03.13.11.40.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Mar 2019 11:40:17 -0700 (PDT) From: Rui Miguel Silva To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Shawn Guo , Rob Herring , Fabio Estevam Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Rui Miguel Silva Subject: [PATCH v3 3/6] iio: gyro: fxas21002c: add i2c driver Date: Wed, 13 Mar 2019 18:39:59 +0000 Message-Id: <20190313184002.2501-4-rui.silva@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190313184002.2501-1-rui.silva@linaro.org> References: <20190313184002.2501-1-rui.silva@linaro.org> MIME-Version: 1.0 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 Add the real driver to talk over i2c and use the fxas21002c core for the main tasks. Signed-off-by: Rui Miguel Silva --- drivers/iio/gyro/Kconfig | 6 +++ drivers/iio/gyro/Makefile | 1 + drivers/iio/gyro/fxas21002c_i2c.c | 73 +++++++++++++++++++++++++++++++ 3 files changed, 80 insertions(+) create mode 100644 drivers/iio/gyro/fxas21002c_i2c.c diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index cfd2cf44bac8..71b6552ee06b 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -77,6 +77,8 @@ config FXAS21002C tristate "NXP FXAS21002C Gyro Sensor" select IIO_BUFFER select IIO_TRIGGERED_BUFFER + select FXAS21002C_I2C if (I2C) + depends on I2C help Say yes here to build support for NXP FXAS21002C Tri-axis Gyro Sensor driver connected via I2C or SPI. @@ -84,6 +86,10 @@ config FXAS21002C This driver can also be built as a module. If so, the module will be called fxas21002c_i2c or fxas21002c_spi. +config FXAS21002C_I2C + tristate + select REGMAP_I2C + config HID_SENSOR_GYRO_3D depends on HID_SENSOR_HUB select IIO_BUFFER diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile index 247dc600a602..adc18a5eb283 100644 --- a/drivers/iio/gyro/Makefile +++ b/drivers/iio/gyro/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_BMG160) += bmg160_core.o obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o obj-$(CONFIG_FXAS21002C) += fxas21002c_core.o +obj-$(CONFIG_FXAS21002C_I2C) += fxas21002c_i2c.o obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o diff --git a/drivers/iio/gyro/fxas21002c_i2c.c b/drivers/iio/gyro/fxas21002c_i2c.c new file mode 100644 index 000000000000..c248ac5251df --- /dev/null +++ b/drivers/iio/gyro/fxas21002c_i2c.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for NXP FXAS21002C Gyroscope - I2C + * + * Copyright (C) 2018 Linaro Ltd. + */ + +#include +#include +#include +#include + +#include "fxas21002c.h" + +static const struct regmap_config fxas21002c_regmap_i2c_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = FXAS21002C_REG_CTRL3, +}; + +static int fxas21002c_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + const char *name = NULL; + + regmap = devm_regmap_init_i2c(i2c, &fxas21002c_regmap_i2c_conf); + if (IS_ERR(regmap)) { + dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + if (id) + name = id->name; + + return fxas21002c_core_probe(&i2c->dev, regmap, i2c->irq, name); +} + +static int fxas21002c_i2c_remove(struct i2c_client *i2c) +{ + fxas21002c_core_remove(&i2c->dev); + + return 0; +} + +static const struct i2c_device_id fxas21002c_i2c_id[] = { + { "fxas21002c", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, fxas21002c_i2c_id); + +static const struct of_device_id fxas21002c_i2c_of_match[] = { + { .compatible = "nxp,fxas21002c", }, + { }, +}; +MODULE_DEVICE_TABLE(of, fxas21002c_i2c_of_match); + +static struct i2c_driver fxas21002c_i2c_driver = { + .driver = { + .name = "fxas21002c_i2c", + .pm = &fxas21002c_pm_ops, + .of_match_table = of_match_ptr(fxas21002c_i2c_of_match), + }, + .probe = fxas21002c_i2c_probe, + .remove = fxas21002c_i2c_remove, + .id_table = fxas21002c_i2c_id, +}; +module_i2c_driver(fxas21002c_i2c_driver); + +MODULE_AUTHOR("Rui Miguel Silva "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("FXAS21002C I2C Gyro driver");