On Tue, Aug 04, 2015 at 01:02:59PM +0200, Markus Pargmann wrote:
> Signed-off-by: Markus Pargmann <mpa@xxxxxxxxxxxxxx>
> ---
> drivers/iio/gyro/Kconfig | 11 ++++++++
> drivers/iio/gyro/Makefile | 1 +
> drivers/iio/gyro/bmg160_spi.c | 60 +++++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 72 insertions(+)
> create mode 100644 drivers/iio/gyro/bmg160_spi.c
>
> diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
> index 1e6cfff5546f..420aea844216 100644
> --- a/drivers/iio/gyro/Kconfig
> +++ b/drivers/iio/gyro/Kconfig
> @@ -72,6 +72,17 @@ config BMG160_I2C
> This driver can also be built as a module. If so, the module
> will be called bmg160_i2c.
>
> +config BMG160_SPI
> + tristate "Driver for connection via SPI"
> + depends on SPI
> + select REGMAP_SPI
> + help
> + Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
> + driver connected via SPI. This driver also supports BMI055 gyroscope.
> +
> + This driver can also be built as a module. If so, the module
> + will be called bmg160_spi.
> +
> endif
>
> config HID_SENSOR_GYRO_3D
> diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
> index 608401041550..f866a4be0667 100644
> --- a/drivers/iio/gyro/Makefile
> +++ b/drivers/iio/gyro/Makefile
> @@ -10,6 +10,7 @@ obj-$(CONFIG_ADIS16260) += adis16260.o
> obj-$(CONFIG_ADXRS450) += adxrs450.o
> obj-$(CONFIG_BMG160) += bmg160_core.o
> obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o
> +obj-$(CONFIG_BMG160_SPI) += bmg160_spi.o
>
> obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
>
> diff --git a/drivers/iio/gyro/bmg160_spi.c b/drivers/iio/gyro/bmg160_spi.c
> new file mode 100644
> index 000000000000..4dcef65f3476
> --- /dev/null
> +++ b/drivers/iio/gyro/bmg160_spi.c
> @@ -0,0 +1,60 @@
> +#include <linux/spi/spi.h>
> +#include <linux/regmap.h>
> +#include <linux/iio/iio.h>
> +#include <linux/module.h>
> +
> +#include <bmg160.h>
> +
> +static const struct regmap_config bmg160_regmap_spi_conf = {
> + .reg_bits = 8,
> + .val_bits = 8,
> + .read_flag_mask = 0x80,
This read_flag_mask seems to be the default for spi. The regmap spi bus
driver already defines this so it is not necessary here, will remove it.
Best regards,
Markus
> +
> + .use_single_rw = true,
> + .cache_type = REGCACHE_NONE,
> +};
> +
> +static int bmg160_spi_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, &bmg160_regmap_spi_conf);
> + if (IS_ERR(regmap)) {
> + dev_err(&spi->dev, "Failed to register spi regmap %d\n",
> + (int)PTR_ERR(regmap));
> + return PTR_ERR(regmap);
> + }
> +
> + return bmg160_core_probe(&spi->dev, regmap, spi->irq, id->name);
> +}
> +
> +static int bmg160_spi_remove(struct spi_device *spi)
> +{
> + bmg160_core_remove(&spi->dev);
> +
> + return 0;
> +}
> +
> +static const struct spi_device_id bmg160_spi_id[] = {
> + {"bmg160", 0},
> + {"bmi055_gyro", 0},
> + {}
> +};
> +
> +MODULE_DEVICE_TABLE(spi, bmg160_spi_id);
> +
> +static struct spi_driver bmg160_spi_driver = {
> + .driver = {
> + .name = "bmg160_spi",
> + .pm = &bmg160_pm_ops,
> + },
> + .probe = bmg160_spi_probe,
> + .remove = bmg160_spi_remove,
> + .id_table = bmg160_spi_id,
> +};
> +module_spi_driver(bmg160_spi_driver);
> +
> +MODULE_AUTHOR("Markus Pargmann <mpa@xxxxxxxxxxxxxx>");
> +MODULE_LICENSE("GPL v2");
> +MODULE_DESCRIPTION("BMG160 SPI Gyro driver");
> --
> 2.1.4
>
>
>
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