diff mbox series

[v6,3/6] iio: gyro: fxas21002c: add i2c driver

Message ID 20190412164901.2321-4-rui.silva@linaro.org
State Accepted
Commit a034cbe1c412628383609f1634154348e00e2990
Headers show
Series iio: gyro: add core driver for fxas21002c | expand

Commit Message

Rui Miguel Silva April 12, 2019, 4:48 p.m. UTC 
Add the real driver to talk over i2c and use the fxas21002c core
for the main tasks.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>

---
 drivers/iio/gyro/Kconfig          |  6 +++
 drivers/iio/gyro/Makefile         |  1 +
 drivers/iio/gyro/fxas21002c_i2c.c | 69 +++++++++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 drivers/iio/gyro/fxas21002c_i2c.c

-- 
2.21.0

Comments

Jonathan Cameron April 14, 2019, 1:39 p.m. UTC | #1 
On Fri, 12 Apr 2019 17:48:58 +0100
Rui Miguel Silva <rui.silva@linaro.org> wrote:

> Add the real driver to talk over i2c and use the fxas21002c core

> for the main tasks.

> 

> Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>

Applied, thanks,

Jonathan
> ---

>  drivers/iio/gyro/Kconfig          |  6 +++

>  drivers/iio/gyro/Makefile         |  1 +

>  drivers/iio/gyro/fxas21002c_i2c.c | 69 +++++++++++++++++++++++++++++++

>  3 files changed, 76 insertions(+)

>  create mode 100644 drivers/iio/gyro/fxas21002c_i2c.c

> 

> diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig

> index cfd2cf44bac8..71b6552ee06b 100644

> --- a/drivers/iio/gyro/Kconfig

> +++ b/drivers/iio/gyro/Kconfig

> @@ -77,6 +77,8 @@ config FXAS21002C

>         tristate "NXP FXAS21002C Gyro Sensor"

>         select IIO_BUFFER

>         select IIO_TRIGGERED_BUFFER

> +       select FXAS21002C_I2C if (I2C)

> +       depends on I2C

>         help

>           Say yes here to build support for NXP FXAS21002C Tri-axis Gyro

>           Sensor driver connected via I2C or SPI.

> @@ -84,6 +86,10 @@ config FXAS21002C

>           This driver can also be built as a module.  If so, the module

>           will be called fxas21002c_i2c or fxas21002c_spi.

>  

> +config FXAS21002C_I2C

> +       tristate

> +       select REGMAP_I2C

> +

>  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 247dc600a602..adc18a5eb283 100644

> --- a/drivers/iio/gyro/Makefile

> +++ b/drivers/iio/gyro/Makefile

> @@ -13,6 +13,7 @@ obj-$(CONFIG_BMG160) += bmg160_core.o

>  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_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o

>  

> diff --git a/drivers/iio/gyro/fxas21002c_i2c.c b/drivers/iio/gyro/fxas21002c_i2c.c

> new file mode 100644

> index 000000000000..a7807fd97483

> --- /dev/null

> +++ b/drivers/iio/gyro/fxas21002c_i2c.c

> @@ -0,0 +1,69 @@

> +// SPDX-License-Identifier: GPL-2.0

> +/*

> + * Driver for NXP FXAS21002C Gyroscope - I2C

> + *

> + * Copyright (C) 2018 Linaro Ltd.

> + */

> +

> +#include <linux/err.h>

> +#include <linux/i2c.h>

> +#include <linux/mod_devicetable.h>

> +#include <linux/module.h>

> +#include <linux/regmap.h>

> +

> +#include "fxas21002c.h"

> +

> +static const struct regmap_config fxas21002c_regmap_i2c_conf = {

> +	.reg_bits = 8,

> +	.val_bits = 8,

> +	.max_register = FXAS21002C_REG_CTRL3,

> +};

> +

> +static int fxas21002c_i2c_probe(struct i2c_client *i2c)

> +{

> +	struct regmap *regmap;

> +

> +	regmap = devm_regmap_init_i2c(i2c, &fxas21002c_regmap_i2c_conf);

> +	if (IS_ERR(regmap)) {

> +		dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n",

> +			PTR_ERR(regmap));

> +		return PTR_ERR(regmap);

> +	}

> +

> +	return fxas21002c_core_probe(&i2c->dev, regmap, i2c->irq, i2c->name);

> +}

> +

> +static int fxas21002c_i2c_remove(struct i2c_client *i2c)

> +{

> +	fxas21002c_core_remove(&i2c->dev);

> +

> +	return 0;

> +}

> +

> +static const struct i2c_device_id fxas21002c_i2c_id[] = {

> +	{ "fxas21002c", 0 },

> +	{ }

> +};

> +MODULE_DEVICE_TABLE(i2c, fxas21002c_i2c_id);

> +

> +static const struct of_device_id fxas21002c_i2c_of_match[] = {

> +	{ .compatible = "nxp,fxas21002c", },

> +	{ }

> +};

> +MODULE_DEVICE_TABLE(of, fxas21002c_i2c_of_match);

> +

> +static struct i2c_driver fxas21002c_i2c_driver = {

> +	.driver = {

> +		.name = "fxas21002c_i2c",

> +		.pm = &fxas21002c_pm_ops,

> +		.of_match_table = fxas21002c_i2c_of_match,

> +	},

> +	.probe_new	= fxas21002c_i2c_probe,

> +	.remove		= fxas21002c_i2c_remove,

> +	.id_table	= fxas21002c_i2c_id,

> +};

> +module_i2c_driver(fxas21002c_i2c_driver);

> +

> +MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");

> +MODULE_LICENSE("GPL v2");

> +MODULE_DESCRIPTION("FXAS21002C I2C Gyro driver");
diff mbox series

Patch

diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig
index cfd2cf44bac8..71b6552ee06b 100644
--- a/drivers/iio/gyro/Kconfig
+++ b/drivers/iio/gyro/Kconfig
@@ -77,6 +77,8 @@  config FXAS21002C
        tristate "NXP FXAS21002C Gyro Sensor"
        select IIO_BUFFER
        select IIO_TRIGGERED_BUFFER
+       select FXAS21002C_I2C if (I2C)
+       depends on I2C
        help
          Say yes here to build support for NXP FXAS21002C Tri-axis Gyro
          Sensor driver connected via I2C or SPI.
@@ -84,6 +86,10 @@  config FXAS21002C
          This driver can also be built as a module.  If so, the module
          will be called fxas21002c_i2c or fxas21002c_spi.
 
+config FXAS21002C_I2C
+       tristate
+       select REGMAP_I2C
+
 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 247dc600a602..adc18a5eb283 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -13,6 +13,7 @@  obj-$(CONFIG_BMG160) += bmg160_core.o
 obj-$(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_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o
 
diff --git a/drivers/iio/gyro/fxas21002c_i2c.c b/drivers/iio/gyro/fxas21002c_i2c.c
new file mode 100644
index 000000000000..a7807fd97483
--- /dev/null
+++ b/drivers/iio/gyro/fxas21002c_i2c.c
@@ -0,0 +1,69 @@ 
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for NXP FXAS21002C Gyroscope - I2C
+ *
+ * Copyright (C) 2018 Linaro Ltd.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "fxas21002c.h"
+
+static const struct regmap_config fxas21002c_regmap_i2c_conf = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = FXAS21002C_REG_CTRL3,
+};
+
+static int fxas21002c_i2c_probe(struct i2c_client *i2c)
+{
+	struct regmap *regmap;
+
+	regmap = devm_regmap_init_i2c(i2c, &fxas21002c_regmap_i2c_conf);
+	if (IS_ERR(regmap)) {
+		dev_err(&i2c->dev, "Failed to register i2c regmap: %ld\n",
+			PTR_ERR(regmap));
+		return PTR_ERR(regmap);
+	}
+
+	return fxas21002c_core_probe(&i2c->dev, regmap, i2c->irq, i2c->name);
+}
+
+static int fxas21002c_i2c_remove(struct i2c_client *i2c)
+{
+	fxas21002c_core_remove(&i2c->dev);
+
+	return 0;
+}
+
+static const struct i2c_device_id fxas21002c_i2c_id[] = {
+	{ "fxas21002c", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, fxas21002c_i2c_id);
+
+static const struct of_device_id fxas21002c_i2c_of_match[] = {
+	{ .compatible = "nxp,fxas21002c", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, fxas21002c_i2c_of_match);
+
+static struct i2c_driver fxas21002c_i2c_driver = {
+	.driver = {
+		.name = "fxas21002c_i2c",
+		.pm = &fxas21002c_pm_ops,
+		.of_match_table = fxas21002c_i2c_of_match,
+	},
+	.probe_new	= fxas21002c_i2c_probe,
+	.remove		= fxas21002c_i2c_remove,
+	.id_table	= fxas21002c_i2c_id,
+};
+module_i2c_driver(fxas21002c_i2c_driver);
+
+MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("FXAS21002C I2C Gyro driver");