From: Markus Pargmann Date: Wed, 19 Aug 2015 12:12:45 +0000 (+0200) Subject: iio: bmg160: Separate i2c and core driver X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=13426454b6493a847cebe276fb1ec3a7f1d48d0e;p=linux-beck.git iio: bmg160: Separate i2c and core driver 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 Reviewed-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index cf82d74139a2..94526b13d49f 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -52,16 +52,21 @@ config ADXRS450 config BMG160 tristate "BOSCH BMG160 Gyro Sensor" - depends on I2C + depends on (I2C || SPI_MASTER) select IIO_BUFFER select IIO_TRIGGERED_BUFFER - select REGMAP_I2C + select BMG160_I2C if (I2C) help - Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor - driver. This driver also supports BMI055 gyroscope. + Say yes here to build support for BOSCH BMG160 Tri-axis Gyro Sensor + driver connected via I2C or SPI. 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. + +config BMG160_I2C + tristate + select REGMAP_I2C config HID_SENSOR_GYRO_3D depends on HID_SENSOR_HUB diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile index f46341b39139..608401041550 100644 --- a/drivers/iio/gyro/Makefile +++ b/drivers/iio/gyro/Makefile @@ -8,7 +8,8 @@ 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) += bmg160_core.o +obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o obj-$(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 ca12402ffd93..02ff789852a0 100644 --- a/drivers/iio/gyro/bmg160.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -13,7 +13,6 @@ */ #include -#include #include #include #include @@ -29,8 +28,8 @@ #include #include #include +#include "bmg160.h" -#define BMG160_DRV_NAME "bmg160" #define BMG160_IRQ_NAME "bmg160_event" #define BMG160_GPIO_NAME "gpio_int" @@ -137,12 +136,6 @@ static const struct { { 133, BMG160_RANGE_250DPS}, { 66, BMG160_RANGE_125DPS} }; -static 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 +989,22 @@ 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 +1012,6 @@ 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 +1106,16 @@ 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 +1128,8 @@ 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) @@ -1210,39 +1191,12 @@ 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); +EXPORT_SYMBOL_GPL(bmg160_pm_ops); MODULE_AUTHOR("Srinivas Pandruvada "); MODULE_LICENSE("GPL v2"); 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");