Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755550AbbHLOuh (ORCPT ); Wed, 12 Aug 2015 10:50:37 -0400 Received: from metis.ext.pengutronix.de ([92.198.50.35]:33203 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755508AbbHLOug (ORCPT ); Wed, 12 Aug 2015 10:50:36 -0400 From: Markus Pargmann To: Jonathan Cameron Cc: Srinivas Pandruvada , Vlad Dogaru , Paul Bolle , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Markus Pargmann Subject: [PATCH v3 5/6] iio: bmg160: Separate i2c and core driver Date: Wed, 12 Aug 2015 16:50:08 +0200 Message-Id: <1439391009-6051-6-git-send-email-mpa@pengutronix.de> X-Mailer: git-send-email 2.4.6 In-Reply-To: <1439391009-6051-1-git-send-email-mpa@pengutronix.de> References: <1439391009-6051-1-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-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 9015 Lines: 324 This patch separates the core driver using regmap and the i2c driver which creates the i2c regmap. Also in the Kconfig file BMG160 and BMG160_I2C are separate now. Signed-off-by: Markus Pargmann --- drivers/iio/gyro/Kconfig | 18 +++++-- drivers/iio/gyro/Makefile | 2 +- drivers/iio/gyro/bmg160.h | 10 ++++ drivers/iio/gyro/{bmg160.c => bmg160_core.c} | 77 +++++----------------------- drivers/iio/gyro/bmg160_i2c.c | 71 +++++++++++++++++++++++++ 5 files changed, 109 insertions(+), 69 deletions(-) create mode 100644 drivers/iio/gyro/bmg160.h rename drivers/iio/gyro/{bmg160.c => bmg160_core.c} (94%) create mode 100644 drivers/iio/gyro/bmg160_i2c.c diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index cf82d74139a2..13f8e0051615 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -51,17 +51,27 @@ config ADXRS450 will be called adxrs450. config BMG160 - tristate "BOSCH BMG160 Gyro Sensor" - depends on I2C + bool "BOSCH BMG160 Gyro Sensor" select IIO_BUFFER select IIO_TRIGGERED_BUFFER - select REGMAP_I2C help Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor driver. This driver also supports BMI055 gyroscope. +if BMG160 + +config BMG160_I2C + tristate "Driver for connection via I2C" + depends on I2C + select REGMAP_I2C + help + Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor + driver connected via I2C. This driver also supports BMI055 gyroscope. + This driver can also be built as a module. If so, the module - will be called bmg160. + will be called bmg160_i2c. + +endif config HID_SENSOR_GYRO_3D depends on HID_SENSOR_HUB diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile index f46341b39139..73b41e43a974 100644 --- a/drivers/iio/gyro/Makefile +++ b/drivers/iio/gyro/Makefile @@ -8,7 +8,7 @@ obj-$(CONFIG_ADIS16130) += adis16130.o obj-$(CONFIG_ADIS16136) += adis16136.o obj-$(CONFIG_ADIS16260) += adis16260.o obj-$(CONFIG_ADXRS450) += adxrs450.o -obj-$(CONFIG_BMG160) += bmg160.o +obj-$(CONFIG_BMG160_I2C) += bmg160_core.o bmg160_i2c.o obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o diff --git a/drivers/iio/gyro/bmg160.h b/drivers/iio/gyro/bmg160.h new file mode 100644 index 000000000000..72db723c8fb6 --- /dev/null +++ b/drivers/iio/gyro/bmg160.h @@ -0,0 +1,10 @@ +#ifndef BMG160_H_ +#define BMG160_H_ + +extern const struct dev_pm_ops bmg160_pm_ops; + +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq, + const char *name); +void bmg160_core_remove(struct device *dev); + +#endif /* BMG160_H_ */ diff --git a/drivers/iio/gyro/bmg160.c b/drivers/iio/gyro/bmg160_core.c similarity index 94% rename from drivers/iio/gyro/bmg160.c rename to drivers/iio/gyro/bmg160_core.c index 39df64fb4262..d64e3a87e0a1 100644 --- a/drivers/iio/gyro/bmg160.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -13,7 +13,6 @@ */ #include -#include #include #include #include @@ -30,7 +29,6 @@ #include #include -#define BMG160_DRV_NAME "bmg160" #define BMG160_IRQ_NAME "bmg160_event" #define BMG160_GPIO_NAME "gpio_int" @@ -137,12 +135,6 @@ static const struct { { 133, BMG160_RANGE_250DPS}, { 66, BMG160_RANGE_125DPS} }; -struct regmap_config bmg160_regmap_i2c_conf = { - .reg_bits = 8, - .val_bits = 8, - .max_register = 0x3f -}; - static int bmg160_set_mode(struct bmg160_data *data, u8 mode) { int ret; @@ -996,31 +988,22 @@ static const char *bmg160_match_acpi_device(struct device *dev) return dev_name(dev); } -static int bmg160_probe(struct i2c_client *client, - const struct i2c_device_id *id) +int bmg160_core_probe(struct device *dev, struct regmap *regmap, int irq, + const char *name) { struct bmg160_data *data; struct iio_dev *indio_dev; int ret; - const char *name = NULL; - struct regmap *regmap; - struct device *dev = &client->dev; - - regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf); - if (IS_ERR(regmap)) { - dev_err(&client->dev, "Failed to register i2c regmap %d\n", - (int)PTR_ERR(regmap)); - return PTR_ERR(regmap); - } - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) return -ENOMEM; data = iio_priv(indio_dev); dev_set_drvdata(dev, indio_dev); data->dev = dev; - data->irq = client->irq; + data->irq = irq; + data->regmap = regmap; ret = bmg160_chip_init(data); if (ret < 0) @@ -1028,9 +1011,6 @@ static int bmg160_probe(struct i2c_client *client, mutex_init(&data->mutex); - if (id) - name = id->name; - if (ACPI_HANDLE(dev)) name = bmg160_match_acpi_device(dev); @@ -1125,15 +1105,16 @@ err_trigger_unregister: return ret; } +EXPORT_SYMBOL_GPL(bmg160_core_probe); -static int bmg160_remove(struct i2c_client *client) +void bmg160_core_remove(struct device *dev) { - struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct bmg160_data *data = iio_priv(indio_dev); - pm_runtime_disable(&client->dev); - pm_runtime_set_suspended(&client->dev); - pm_runtime_put_noidle(&client->dev); + pm_runtime_disable(dev); + pm_runtime_set_suspended(dev); + pm_runtime_put_noidle(dev); iio_device_unregister(indio_dev); iio_triggered_buffer_cleanup(indio_dev); @@ -1146,9 +1127,8 @@ static int bmg160_remove(struct i2c_client *client) mutex_lock(&data->mutex); bmg160_set_mode(data, BMG160_MODE_DEEP_SUSPEND); mutex_unlock(&data->mutex); - - return 0; } +EXPORT_SYMBOL_GPL(bmg160_core_remove); #ifdef CONFIG_PM_SLEEP static int bmg160_suspend(struct device *dev) @@ -1210,40 +1190,9 @@ static int bmg160_runtime_resume(struct device *dev) } #endif -static const struct dev_pm_ops bmg160_pm_ops = { +const struct dev_pm_ops bmg160_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(bmg160_suspend, bmg160_resume) SET_RUNTIME_PM_OPS(bmg160_runtime_suspend, bmg160_runtime_resume, NULL) }; -static const struct acpi_device_id bmg160_acpi_match[] = { - {"BMG0160", 0}, - {"BMI055B", 0}, - {}, -}; - -MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match); - -static const struct i2c_device_id bmg160_id[] = { - {"bmg160", 0}, - {"bmi055_gyro", 0}, - {} -}; - -MODULE_DEVICE_TABLE(i2c, bmg160_id); - -static struct i2c_driver bmg160_driver = { - .driver = { - .name = BMG160_DRV_NAME, - .acpi_match_table = ACPI_PTR(bmg160_acpi_match), - .pm = &bmg160_pm_ops, - }, - .probe = bmg160_probe, - .remove = bmg160_remove, - .id_table = bmg160_id, -}; -module_i2c_driver(bmg160_driver); - -MODULE_AUTHOR("Srinivas Pandruvada "); -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("BMG160 Gyro driver"); diff --git a/drivers/iio/gyro/bmg160_i2c.c b/drivers/iio/gyro/bmg160_i2c.c new file mode 100644 index 000000000000..90126a5a7663 --- /dev/null +++ b/drivers/iio/gyro/bmg160_i2c.c @@ -0,0 +1,71 @@ +#include +#include +#include +#include +#include + +#include "bmg160.h" + +static const struct regmap_config bmg160_regmap_i2c_conf = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0x3f +}; + +static int bmg160_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + const char *name = NULL; + + regmap = devm_regmap_init_i2c(client, &bmg160_regmap_i2c_conf); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to register i2c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + if (id) + name = id->name; + + return bmg160_core_probe(&client->dev, regmap, client->irq, name); +} + +static int bmg160_i2c_remove(struct i2c_client *client) +{ + bmg160_core_remove(&client->dev); + + return 0; +} + +static const struct acpi_device_id bmg160_acpi_match[] = { + {"BMG0160", 0}, + {"BMI055B", 0}, + {}, +}; + +MODULE_DEVICE_TABLE(acpi, bmg160_acpi_match); + +static const struct i2c_device_id bmg160_i2c_id[] = { + {"bmg160", 0}, + {"bmi055_gyro", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, bmg160_i2c_id); + +static struct i2c_driver bmg160_i2c_driver = { + .driver = { + .name = "bmg160_i2c", + .acpi_match_table = ACPI_PTR(bmg160_acpi_match), + .pm = &bmg160_pm_ops, + }, + .probe = bmg160_i2c_probe, + .remove = bmg160_i2c_remove, + .id_table = bmg160_i2c_id, +}; +module_i2c_driver(bmg160_i2c_driver); + +MODULE_AUTHOR("Srinivas Pandruvada "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("BMG160 I2C Gyro driver"); -- 2.4.6 -- 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/