Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759072AbaGOM1N (ORCPT ); Tue, 15 Jul 2014 08:27:13 -0400 Received: from w-smtp-out-7.wedos.net ([46.28.106.5]:46753 "EHLO we2-f167.wedos.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758729AbaGOM1K (ORCPT ); Tue, 15 Jul 2014 08:27:10 -0400 Date: Tue, 15 Jul 2014 14:27:09 +0200 From: Josef Gajdusek To: linux-iio@vger.kernel.org Cc: devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, jic23@kernel.org, linux-kernel@vger.kernel.org, pmeerw@pmeerw.net, dan.carpenter@oracle.com, lars@metafoo.de Subject: [PATCH v4 4/5] staging:iio:hmc5843: Add support for i2c hmc5983 Message-ID: <20140715122709.GE30770@dashie> References: <20140715122410.GA30770@dashie> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140715122410.GA30770@dashie> User-Agent: Mutt/1.5.22 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds support for the hmc5983 i2c interface. This chip is almost identical to the hmc5883. The difference being added temperature compensation, additional available sample rate (220Hz) and an SPI interface. Signed-off-by: Josef Gajdusek --- drivers/staging/iio/magnetometer/Kconfig | 2 +- drivers/staging/iio/magnetometer/hmc5843.h | 1 + drivers/staging/iio/magnetometer/hmc5843_core.c | 20 +++++++++++++++++--- drivers/staging/iio/magnetometer/hmc5843_i2c.c | 5 +++-- 4 files changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig index 0a27f98..c086f33 100644 --- a/drivers/staging/iio/magnetometer/Kconfig +++ b/drivers/staging/iio/magnetometer/Kconfig @@ -20,6 +20,6 @@ config SENSORS_HMC5843_I2C This driver can also be compiled as a set of modules. If so, these modules will be created: - hmc5843_core (core functions) - - hmc5843_i2c (support for HMC5843, HMC5883 and HMC5883L) + - hmc5843_i2c (support for HMC5843, HMC5883, HMC5883L and HMC5983) endmenu diff --git a/drivers/staging/iio/magnetometer/hmc5843.h b/drivers/staging/iio/magnetometer/hmc5843.h index 0d9b02e..204bf92 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.h +++ b/drivers/staging/iio/magnetometer/hmc5843.h @@ -29,6 +29,7 @@ enum hmc5843_ids { HMC5843_ID, HMC5883_ID, HMC5883L_ID, + HMC5983_ID, }; struct hmc5843_data { diff --git a/drivers/staging/iio/magnetometer/hmc5843_core.c b/drivers/staging/iio/magnetometer/hmc5843_core.c index 08fb0be..914ae1a 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_core.c +++ b/drivers/staging/iio/magnetometer/hmc5843_core.c @@ -101,6 +101,11 @@ static const int hmc5883_regval_to_samp_freq[][2] = { {75, 0} }; +static const int hmc5983_regval_to_samp_freq[][2] = { + {0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0}, + {75, 0}, {220, 0} +}; + /* Describe chip variants */ struct hmc5843_chip_info { const struct iio_chan_spec *channels; @@ -457,7 +462,7 @@ static const struct iio_chan_spec hmc5843_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(3), }; -/* Beware: Y and Z are exchanged on HMC5883 */ +/* Beware: Y and Z are exchanged on HMC5883 and 5983 */ static const struct iio_chan_spec hmc5883_channels[] = { HMC5843_CHANNEL(X, 0), HMC5843_CHANNEL(Z, 1), @@ -504,6 +509,15 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = { .n_regval_to_nanoscale = ARRAY_SIZE(hmc5883l_regval_to_nanoscale), }, + [HMC5983_ID] = { + .channels = hmc5883_channels, + .regval_to_samp_freq = hmc5983_regval_to_samp_freq, + .n_regval_to_samp_freq = + ARRAY_SIZE(hmc5983_regval_to_samp_freq), + .regval_to_nanoscale = hmc5883l_regval_to_nanoscale, + .n_regval_to_nanoscale = + ARRAY_SIZE(hmc5883l_regval_to_nanoscale), + } }; static int hmc5843_init(struct hmc5843_data *data) @@ -516,7 +530,7 @@ static int hmc5843_init(struct hmc5843_data *data) if (ret < 0) return ret; if (id[0] != 'H' || id[1] != '4' || id[2] != '3') { - dev_err(data->dev, "no HMC5843/5883/5883L sensor\n"); + dev_err(data->dev, "no HMC5843/5883/5883L/5983 sensor\n"); return -ENODEV; } @@ -620,5 +634,5 @@ int hmc5843_common_remove(struct device *dev) EXPORT_SYMBOL(hmc5843_common_remove); MODULE_AUTHOR("Shubhrajyoti Datta "); -MODULE_DESCRIPTION("HMC5843/5883/5883L core driver"); +MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 core driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/staging/iio/magnetometer/hmc5843_i2c.c b/drivers/staging/iio/magnetometer/hmc5843_i2c.c index 1ae97d9..416e09a 100644 --- a/drivers/staging/iio/magnetometer/hmc5843_i2c.c +++ b/drivers/staging/iio/magnetometer/hmc5843_i2c.c @@ -1,5 +1,5 @@ /* - * i2c driver for hmc5843/5843/5883/5883l + * i2c driver for hmc5843/5843/5883/5883l/5983 * * Split from hmc5843.c * Copyright (C) Josef Gajdusek @@ -46,6 +46,7 @@ static const struct i2c_device_id hmc5843_id[] = { { "hmc5843", HMC5843_ID }, { "hmc5883", HMC5883_ID }, { "hmc5883l", HMC5883L_ID }, + { "hmc5983", HMC5983_ID }, { } }; MODULE_DEVICE_TABLE(i2c, hmc5843_id); @@ -69,5 +70,5 @@ static struct i2c_driver hmc5843_driver = { module_i2c_driver(hmc5843_driver); MODULE_AUTHOR("Josef Gajdusek "); -MODULE_DESCRIPTION("HMC5843/5883/5883L i2c driver"); +MODULE_DESCRIPTION("HMC5843/5883/5883L/5983 i2c driver"); MODULE_LICENSE("GPL"); -- 1.8.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/