From patchwork Wed Aug 12 10:12:45 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Pargmann X-Patchwork-Id: 6999831 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D6860C05AC for ; Wed, 12 Aug 2015 10:17:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id ECADD20555 for ; Wed, 12 Aug 2015 10:17:51 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 009DC204EC for ; Wed, 12 Aug 2015 10:17:51 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZPT4J-00019S-2x; Wed, 12 Aug 2015 10:15:35 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZPT2u-0007X7-PU for linux-arm-kernel@lists.infradead.org; Wed, 12 Aug 2015 10:14:11 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.2:RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1ZPT2T-0008Uu-5o; Wed, 12 Aug 2015 12:13:41 +0200 Received: from mpa by dude.hi.pengutronix.de with local (Exim 4.86) (envelope-from ) id 1ZPT2N-0001F2-VP; Wed, 12 Aug 2015 12:13:35 +0200 From: Markus Pargmann To: Mark Brown , Jonathan Cameron Subject: [PATCH 20/20] iio: bmc150: Add SPI driver Date: Wed, 12 Aug 2015 12:12:45 +0200 Message-Id: <1439374365-20623-21-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1439374365-20623-1-git-send-email-mpa@pengutronix.de> References: <1439374365-20623-1-git-send-email-mpa@pengutronix.de> X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::7 X-SA-Exim-Mail-From: mpa@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150812_031409_205298_88B8FD63 X-CRM114-Status: GOOD ( 17.65 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Srinivas Pandruvada , Markus Pargmann , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a simple SPI driver which initializes the spi regmap for the bmc150 core driver. Signed-off-by: Markus Pargmann --- drivers/iio/accel/Kconfig | 10 +++++ drivers/iio/accel/Makefile | 1 + drivers/iio/accel/bmc150-accel-spi.c | 86 ++++++++++++++++++++++++++++++++++++ 3 files changed, 97 insertions(+) create mode 100644 drivers/iio/accel/bmc150-accel-spi.c diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index c63e981c38ff..bdb42069a767 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -40,6 +40,16 @@ config BMC150_ACCEL_I2C Say yes here to build support for I2C communication with the mentioned accelerometer. +config BMC150_ACCEL_SPI + tristate "SPI support" + depends on SPI + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + select REGMAP_SPI + help + Say yes here to build support for SPI communication with the + mentioned accelerometer. + endif config HID_SENSOR_ACCEL_3D diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile index 5ef8bdbad092..e579e93bf022 100644 --- a/drivers/iio/accel/Makefile +++ b/drivers/iio/accel/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_BMA180) += bma180.o obj-$(CONFIG_BMC150_ACCEL) += bmc150-accel-core.o obj-$(CONFIG_BMC150_ACCEL_I2C) += bmc150-accel-i2c.o +obj-$(CONFIG_BMC150_ACCEL_SPI) += bmc150-accel-spi.o obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o obj-$(CONFIG_KXSD9) += kxsd9.o diff --git a/drivers/iio/accel/bmc150-accel-spi.c b/drivers/iio/accel/bmc150-accel-spi.c new file mode 100644 index 000000000000..c13fd2aa5f34 --- /dev/null +++ b/drivers/iio/accel/bmc150-accel-spi.c @@ -0,0 +1,86 @@ +/* + * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips: + * - BMC150 + * - BMI055 + * - BMA255 + * - BMA250E + * - BMA222E + * - BMA280 + * + * Copyright (c) 2014, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include +#include +#include +#include +#include +#include + +#include "bmc150-accel.h" + +static const struct regmap_config bmc150_spi_regmap_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x3f, + + .use_single_rw = false, + .cache_type = REGCACHE_NONE, +}; + +static int bmc150_accel_probe(struct spi_device *spi) +{ + struct regmap *regmap; + const struct spi_device_id *id = spi_get_device_id(spi); + + regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to initialize spi regmap\n"); + return PTR_ERR(regmap); + } + + return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, + id->name, id->driver_data, true); +} + +static int bmc150_accel_remove(struct spi_device *spi) +{ + return bmc150_accel_core_remove(&spi->dev); +} + +static const struct spi_device_id bmc150_accel_id[] = { + {"bmc150_accel", bmc150}, + {"bmi055_accel", bmi055}, + {"bma255", bma255}, + {"bma250e", bma250e}, + {"bma222e", bma222e}, + {"bma280", bma280}, + {} +}; + +MODULE_DEVICE_TABLE(spi, bmc150_accel_id); + +static struct spi_driver bmc150_accel_driver = { + .driver = { + .name = "bmc150_accel_spi", + .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match), + .pm = &bmc150_accel_pm_ops, + }, + .probe = bmc150_accel_probe, + .remove = bmc150_accel_remove, + .id_table = bmc150_accel_id, +}; +module_spi_driver(bmc150_accel_driver); + +MODULE_AUTHOR("Markus Pargmann "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("BMC150 SPI accelerometer driver");