From patchwork Wed Mar 13 18:40:00 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: 10851657 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 C32D96C2 for ; Wed, 13 Mar 2019 18:40:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD65729738 for ; Wed, 13 Mar 2019 18:40:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A10AE2A03F; Wed, 13 Mar 2019 18:40:26 +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 0A0AE2A03D for ; Wed, 13 Mar 2019 18:40:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727151AbfCMSkX (ORCPT ); Wed, 13 Mar 2019 14:40:23 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:50713 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727201AbfCMSkW (ORCPT ); Wed, 13 Mar 2019 14:40:22 -0400 Received: by mail-wm1-f68.google.com with SMTP id x7so364300wmj.0 for ; Wed, 13 Mar 2019 11:40:21 -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=YBROu6s1aUqFXVAOn6ZhMxPUlZjIbwtgWmPTml7WQYY=; b=cJL8Luw2mmbur8J9ux/dfWGjDSuhM4V6OBO3gN6evqtSl4a/odxL3hVjoH7RdSTmX2 X1t9q2IWQLE4x77IqfdD8eTk78h+vMaleJ8dpeZq+CjAMxCg08nUr9wVMhVg+uyjY5k4 IEp2WQRf+uj30w2DASs2AYEdGqG/2whPVOf5IPzaAFCVsHmjut82rLRmNAmXkoO7XuES 3HvkHOqTOnQI9hXvYgbmJp+fONO3RRwGZw8OmY38W9DWscC3nJ9LIWCZsLULBuuib+IW IeOnD8QKnPp1QSAokz4UvMFGGXIFtQowpVcqc3FvzbtV9CwOmVVPbB3ytCS56+H4Cy8v ktsA== 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=YBROu6s1aUqFXVAOn6ZhMxPUlZjIbwtgWmPTml7WQYY=; b=SNsrLlqHoCXpgfC5Ua0npGk/ZusJLw3/u1XHF8An7zWdKvIfDK6zvuwPXhBpU5uSvG aAnyrEn19Ye0TLE1loj3aGrqEN+QcF5wwZBOfVgLicfJ8WResfFkyavD82a1HC/hffy6 3E5zqw3YoqtSvKYx9zL54MJmU9EcpW6/bj/Pj+ZTYMVZt5RR4KiJFpLmdhm2ytsahe+p qdAy83zlG6UmA1NJ+aPnlL5wsGKu4h14pMkhGEiyDv7bZWoxcxgPUzznh02/Vqlm1cLI qGWZj5u6JGPYTeVocFnvplOVs/asnFjLUAySisedJY/DZYgiUBn7p5vrGuS+24pGHSE/ EiTg== X-Gm-Message-State: APjAAAVbRd9sA5wAYV02E7Jivf1l2QlQ47NEFFO4l4k99p7jawFyBj0f j2ljus0+M3uFwxHCeeHsQWqyFw== X-Google-Smtp-Source: APXvYqyeMi4OKw8wdGfycDVKFqMIf6evdXw8DmvXUaihOT+oXj3bjaO4Q+pcNAOCXs07l4E+s9454g== X-Received: by 2002:a1c:1cf:: with SMTP id 198mr3120510wmb.52.1552502420799; Wed, 13 Mar 2019 11:40:20 -0700 (PDT) Received: from arch-late.localdomain ([87.196.73.151]) by smtp.gmail.com with ESMTPSA id p17sm3829660wmi.35.2019.03.13.11.40.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 13 Mar 2019 11:40:20 -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 4/6] iio: gyro: fxas21002c: add spi driver Date: Wed, 13 Mar 2019 18:40:00 +0000 Message-Id: <20190313184002.2501-5-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 driver to talk over spi to a fxas21002c gyroscope device and use the core as main controller. Signed-off-by: Rui Miguel Silva --- drivers/iio/gyro/Kconfig | 7 +++- drivers/iio/gyro/Makefile | 1 + drivers/iio/gyro/fxas21002c_spi.c | 69 +++++++++++++++++++++++++++++++ 3 files changed, 76 insertions(+), 1 deletion(-) create mode 100644 drivers/iio/gyro/fxas21002c_spi.c diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index 71b6552ee06b..61c00cee037d 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -78,7 +78,8 @@ config FXAS21002C select IIO_BUFFER select IIO_TRIGGERED_BUFFER select FXAS21002C_I2C if (I2C) - depends on I2C + select FXAS21002C_SPI if (SPI) + depends on (I2C || SPI_MASTER) help Say yes here to build support for NXP FXAS21002C Tri-axis Gyro Sensor driver connected via I2C or SPI. @@ -90,6 +91,10 @@ config FXAS21002C_I2C tristate select REGMAP_I2C +config FXAS21002C_SPI + tristate + select REGMAP_SPI + 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 adc18a5eb283..45cbd5dc644e 100644 --- a/drivers/iio/gyro/Makefile +++ b/drivers/iio/gyro/Makefile @@ -14,6 +14,7 @@ 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-$(CONFIG_FXAS21002C_SPI) += fxas21002c_spi.o obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o diff --git a/drivers/iio/gyro/fxas21002c_spi.c b/drivers/iio/gyro/fxas21002c_spi.c new file mode 100644 index 000000000000..88a4e9acad24 --- /dev/null +++ b/drivers/iio/gyro/fxas21002c_spi.c @@ -0,0 +1,69 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Driver for NXP Fxas21002c Gyroscope - SPI + * + * Copyright (C) 2019 Linaro Ltd. + */ + +#include +#include +#include +#include + +#include "fxas21002c.h" + +static const struct regmap_config fxas21002c_regmap_spi_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = FXAS21002C_REG_CTRL3, +}; + +static int fxas21002c_spi_probe(struct spi_device *spi) +{ + const struct spi_device_id *id = spi_get_device_id(spi); + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap: %ld\n", + PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name); +} + +static int fxas21002c_spi_remove(struct spi_device *spi) +{ + fxas21002c_core_remove(&spi->dev); + + return 0; +} + +static const struct spi_device_id fxas21002c_spi_id[] = { + { "fxas21002c", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id); + +static const struct of_device_id fxas21002c_spi_of_match[] = { + { .compatible = "nxp,fxas21002c", }, + { }, +}; +MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match); + +static struct spi_driver fxas21002c_spi_driver = { + .driver = { + .name = "fxas21002c_spi", + .pm = &fxas21002c_pm_ops, + .of_match_table = of_match_ptr(fxas21002c_spi_of_match), + }, + .probe = fxas21002c_spi_probe, + .remove = fxas21002c_spi_remove, + .id_table = fxas21002c_spi_id, +}; +module_spi_driver(fxas21002c_spi_driver); + +MODULE_AUTHOR("Rui Miguel Silva "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver");