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-rw-r--r--drivers/iio/accel/Kconfig42
-rw-r--r--drivers/iio/accel/Makefile6
-rw-r--r--drivers/iio/accel/bmc150-accel-core.c20
-rw-r--r--drivers/iio/accel/kxcjk-1013.c20
-rw-r--r--drivers/iio/accel/mma7455.h19
-rw-r--r--drivers/iio/accel/mma7455_core.c311
-rw-r--r--drivers/iio/accel/mma7455_i2c.c56
-rw-r--r--drivers/iio/accel/mma7455_spi.c52
-rw-r--r--drivers/iio/accel/mma8452.c61
-rw-r--r--drivers/iio/accel/mma9551.c19
-rw-r--r--drivers/iio/accel/mma9553.c20
-rw-r--r--drivers/iio/accel/mxc6255.c198
-rw-r--r--drivers/iio/accel/st_accel.h1
-rw-r--r--drivers/iio/accel/st_accel_core.c1
-rw-r--r--drivers/iio/accel/st_accel_i2c.c5
-rw-r--r--drivers/iio/accel/st_accel_spi.c1
16 files changed, 765 insertions, 67 deletions
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 969428dd6329..edc29b173f6c 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -64,7 +64,7 @@ config IIO_ST_ACCEL_3AXIS
help
Say yes here to build support for STMicroelectronics accelerometers:
LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
- LIS331DLH, LSM303DL, LSM303DLM, LSM330.
+ LIS331DLH, LSM303DL, LSM303DLM, LSM330, LIS2DH12.
This driver can also be built as a module. If so, these modules
will be created:
@@ -107,6 +107,35 @@ config KXCJK1013
To compile this driver as a module, choose M here: the module will
be called kxcjk-1013.
+config MMA7455
+ tristate
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+
+config MMA7455_I2C
+ tristate "Freescale MMA7455L/MMA7456L Accelerometer I2C Driver"
+ depends on I2C
+ select MMA7455
+ select REGMAP_I2C
+ help
+ Say yes here to build support for the Freescale MMA7455L and
+ MMA7456L 3-axis accelerometer.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mma7455_i2c.
+
+config MMA7455_SPI
+ tristate "Freescale MMA7455L/MMA7456L Accelerometer SPI Driver"
+ depends on SPI_MASTER
+ select MMA7455
+ select REGMAP_SPI
+ help
+ Say yes here to build support for the Freescale MMA7455L and
+ MMA7456L 3-axis accelerometer.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mma7455_spi.
+
config MMA8452
tristate "Freescale MMA8452Q and similar Accelerometers Driver"
depends on I2C
@@ -158,6 +187,17 @@ config MXC4005
To compile this driver as a module, choose M. The module will be
called mxc4005.
+config MXC6255
+ tristate "Memsic MXC6255 Orientation Sensing Accelerometer Driver"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say yes here to build support for the Memsic MXC6255 Orientation
+ Sensing Accelerometer Driver.
+
+ To compile this driver as a module, choose M here: the module will be
+ called mxc6255.
+
config STK8312
tristate "Sensortek STK8312 3-Axis Accelerometer Driver"
depends on I2C
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 7925f166e6e9..71b6794de885 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -10,6 +10,11 @@ obj-$(CONFIG_BMC150_ACCEL_SPI) += bmc150-accel-spi.o
obj-$(CONFIG_HID_SENSOR_ACCEL_3D) += hid-sensor-accel-3d.o
obj-$(CONFIG_KXCJK1013) += kxcjk-1013.o
obj-$(CONFIG_KXSD9) += kxsd9.o
+
+obj-$(CONFIG_MMA7455) += mma7455_core.o
+obj-$(CONFIG_MMA7455_I2C) += mma7455_i2c.o
+obj-$(CONFIG_MMA7455_SPI) += mma7455_spi.o
+
obj-$(CONFIG_MMA8452) += mma8452.o
obj-$(CONFIG_MMA9551_CORE) += mma9551_core.o
@@ -17,6 +22,7 @@ obj-$(CONFIG_MMA9551) += mma9551.o
obj-$(CONFIG_MMA9553) += mma9553.o
obj-$(CONFIG_MXC4005) += mxc4005.o
+obj-$(CONFIG_MXC6255) += mxc6255.o
obj-$(CONFIG_STK8312) += stk8312.o
obj-$(CONFIG_STK8BA50) += stk8ba50.o
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 2d33f1e821db..c73331f7782b 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1623,24 +1623,22 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
}
}
- ret = iio_device_register(indio_dev);
- if (ret < 0) {
- dev_err(dev, "Unable to register iio device\n");
- goto err_trigger_unregister;
- }
-
ret = pm_runtime_set_active(dev);
if (ret)
- goto err_iio_unregister;
+ goto err_trigger_unregister;
pm_runtime_enable(dev);
pm_runtime_set_autosuspend_delay(dev, BMC150_AUTO_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(dev);
+ ret = iio_device_register(indio_dev);
+ if (ret < 0) {
+ dev_err(dev, "Unable to register iio device\n");
+ goto err_trigger_unregister;
+ }
+
return 0;
-err_iio_unregister:
- iio_device_unregister(indio_dev);
err_trigger_unregister:
bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
err_buffer_cleanup:
@@ -1655,12 +1653,12 @@ int bmc150_accel_core_remove(struct device *dev)
struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct bmc150_accel_data *data = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
+
pm_runtime_disable(data->dev);
pm_runtime_set_suspended(data->dev);
pm_runtime_put_noidle(data->dev);
- iio_device_unregister(indio_dev);
-
bmc150_accel_unregister_triggers(data, BMC150_ACCEL_TRIGGERS - 1);
iio_triggered_buffer_cleanup(indio_dev);
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 18c1b06684c1..edec1d099e91 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1264,25 +1264,23 @@ static int kxcjk1013_probe(struct i2c_client *client,
goto err_trigger_unregister;
}
- ret = iio_device_register(indio_dev);
- if (ret < 0) {
- dev_err(&client->dev, "unable to register iio device\n");
- goto err_buffer_cleanup;
- }
-
ret = pm_runtime_set_active(&client->dev);
if (ret)
- goto err_iio_unregister;
+ goto err_buffer_cleanup;
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev,
KXCJK1013_SLEEP_DELAY_MS);
pm_runtime_use_autosuspend(&client->dev);
+ ret = iio_device_register(indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to register iio device\n");
+ goto err_buffer_cleanup;
+ }
+
return 0;
-err_iio_unregister:
- iio_device_unregister(indio_dev);
err_buffer_cleanup:
if (data->dready_trig)
iio_triggered_buffer_cleanup(indio_dev);
@@ -1302,12 +1300,12 @@ static int kxcjk1013_remove(struct i2c_client *client)
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct kxcjk1013_data *data = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
+
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
pm_runtime_put_noidle(&client->dev);
- iio_device_unregister(indio_dev);
-
if (data->dready_trig) {
iio_triggered_buffer_cleanup(indio_dev);
iio_trigger_unregister(data->dready_trig);
diff --git a/drivers/iio/accel/mma7455.h b/drivers/iio/accel/mma7455.h
new file mode 100644
index 000000000000..2b1152c53d4f
--- /dev/null
+++ b/drivers/iio/accel/mma7455.h
@@ -0,0 +1,19 @@
+/*
+ * IIO accel driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MMA7455_H
+#define __MMA7455_H
+
+extern const struct regmap_config mma7455_core_regmap;
+
+int mma7455_core_probe(struct device *dev, struct regmap *regmap,
+ const char *name);
+int mma7455_core_remove(struct device *dev);
+
+#endif
diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c
new file mode 100644
index 000000000000..c633cc2c0789
--- /dev/null
+++ b/drivers/iio/accel/mma7455_core.c
@@ -0,0 +1,311 @@
+/*
+ * IIO accel core driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * UNSUPPORTED hardware features:
+ * - 8-bit mode with different scales
+ * - INT1/INT2 interrupts
+ * - Offset calibration
+ * - Events
+ */
+
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "mma7455.h"
+
+#define MMA7455_REG_XOUTL 0x00
+#define MMA7455_REG_XOUTH 0x01
+#define MMA7455_REG_YOUTL 0x02
+#define MMA7455_REG_YOUTH 0x03
+#define MMA7455_REG_ZOUTL 0x04
+#define MMA7455_REG_ZOUTH 0x05
+#define MMA7455_REG_STATUS 0x09
+#define MMA7455_STATUS_DRDY BIT(0)
+#define MMA7455_REG_WHOAMI 0x0f
+#define MMA7455_WHOAMI_ID 0x55
+#define MMA7455_REG_MCTL 0x16
+#define MMA7455_MCTL_MODE_STANDBY 0x00
+#define MMA7455_MCTL_MODE_MEASURE 0x01
+#define MMA7455_REG_CTL1 0x18
+#define MMA7455_CTL1_DFBW_MASK BIT(7)
+#define MMA7455_CTL1_DFBW_125HZ BIT(7)
+#define MMA7455_CTL1_DFBW_62_5HZ 0
+#define MMA7455_REG_TW 0x1e
+
+/*
+ * When MMA7455 is used in 10-bit it has a fullscale of -8g
+ * corresponding to raw value -512. The userspace interface
+ * uses m/s^2 and we declare micro units.
+ * So scale factor is given by:
+ * g * 8 * 1e6 / 512 = 153228.90625, with g = 9.80665
+ */
+#define MMA7455_10BIT_SCALE 153229
+
+struct mma7455_data {
+ struct regmap *regmap;
+ struct device *dev;
+};
+
+static int mma7455_drdy(struct mma7455_data *mma7455)
+{
+ unsigned int reg;
+ int tries = 3;
+ int ret;
+
+ while (tries-- > 0) {
+ ret = regmap_read(mma7455->regmap, MMA7455_REG_STATUS, &reg);
+ if (ret)
+ return ret;
+
+ if (reg & MMA7455_STATUS_DRDY)
+ return 0;
+
+ msleep(20);
+ }
+
+ dev_warn(mma7455->dev, "data not ready\n");
+
+ return -EIO;
+}
+
+static irqreturn_t mma7455_trigger_handler(int irq, void *p)
+{
+ struct iio_poll_func *pf = p;
+ struct iio_dev *indio_dev = pf->indio_dev;
+ struct mma7455_data *mma7455 = iio_priv(indio_dev);
+ u8 buf[16]; /* 3 x 16-bit channels + padding + ts */
+ int ret;
+
+ ret = mma7455_drdy(mma7455);
+ if (ret)
+ goto done;
+
+ ret = regmap_bulk_read(mma7455->regmap, MMA7455_REG_XOUTL, buf,
+ sizeof(__le16) * 3);
+ if (ret)
+ goto done;
+
+ iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
+
+done:
+ iio_trigger_notify_done(indio_dev->trig);
+
+ return IRQ_HANDLED;
+}
+
+static int mma7455_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct mma7455_data *mma7455 = iio_priv(indio_dev);
+ unsigned int reg;
+ __le16 data;
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ if (iio_buffer_enabled(indio_dev))
+ return -EBUSY;
+
+ ret = mma7455_drdy(mma7455);
+ if (ret)
+ return ret;
+
+ ret = regmap_bulk_read(mma7455->regmap, chan->address, &data,
+ sizeof(data));
+ if (ret)
+ return ret;
+
+ *val = sign_extend32(le16_to_cpu(data), 9);
+
+ return IIO_VAL_INT;
+
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+ *val2 = MMA7455_10BIT_SCALE;
+
+ return IIO_VAL_INT_PLUS_MICRO;
+
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ ret = regmap_read(mma7455->regmap, MMA7455_REG_CTL1, &reg);
+ if (ret)
+ return ret;
+
+ if (reg & MMA7455_CTL1_DFBW_MASK)
+ *val = 250;
+ else
+ *val = 125;
+
+ return IIO_VAL_INT;
+ }
+
+ return -EINVAL;
+}
+
+static int mma7455_write_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int val, int val2, long mask)
+{
+ struct mma7455_data *mma7455 = iio_priv(indio_dev);
+ int i;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_SAMP_FREQ:
+ if (val == 250 && val2 == 0)
+ i = MMA7455_CTL1_DFBW_125HZ;
+ else if (val == 125 && val2 == 0)
+ i = MMA7455_CTL1_DFBW_62_5HZ;
+ else
+ return -EINVAL;
+
+ return regmap_update_bits(mma7455->regmap, MMA7455_REG_CTL1,
+ MMA7455_CTL1_DFBW_MASK, i);
+
+ case IIO_CHAN_INFO_SCALE:
+ /* In 10-bit mode there is only one scale available */
+ if (val == 0 && val2 == MMA7455_10BIT_SCALE)
+ return 0;
+ break;
+ }
+
+ return -EINVAL;
+}
+
+static IIO_CONST_ATTR(sampling_frequency_available, "125 250");
+
+static struct attribute *mma7455_attributes[] = {
+ &iio_const_attr_sampling_frequency_available.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group mma7455_group = {
+ .attrs = mma7455_attributes,
+};
+
+static const struct iio_info mma7455_info = {
+ .attrs = &mma7455_group,
+ .read_raw = mma7455_read_raw,
+ .write_raw = mma7455_write_raw,
+ .driver_module = THIS_MODULE,
+};
+
+#define MMA7455_CHANNEL(axis, idx) { \
+ .type = IIO_ACCEL, \
+ .modified = 1, \
+ .address = MMA7455_REG_##axis##OUTL,\
+ .channel2 = IIO_MOD_##axis, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+ BIT(IIO_CHAN_INFO_SCALE), \
+ .scan_index = idx, \
+ .scan_type = { \
+ .sign = 's', \
+ .realbits = 10, \
+ .storagebits = 16, \
+ .endianness = IIO_LE, \
+ }, \
+}
+
+static const struct iio_chan_spec mma7455_channels[] = {
+ MMA7455_CHANNEL(X, 0),
+ MMA7455_CHANNEL(Y, 1),
+ MMA7455_CHANNEL(Z, 2),
+ IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
+static const unsigned long mma7455_scan_masks[] = {0x7, 0};
+
+const struct regmap_config mma7455_core_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MMA7455_REG_TW,
+};
+EXPORT_SYMBOL_GPL(mma7455_core_regmap);
+
+int mma7455_core_probe(struct device *dev, struct regmap *regmap,
+ const char *name)
+{
+ struct mma7455_data *mma7455;
+ struct iio_dev *indio_dev;
+ unsigned int reg;
+ int ret;
+
+ ret = regmap_read(regmap, MMA7455_REG_WHOAMI, &reg);
+ if (ret) {
+ dev_err(dev, "unable to read reg\n");
+ return ret;
+ }
+
+ if (reg != MMA7455_WHOAMI_ID) {
+ dev_err(dev, "device id mismatch\n");
+ return -ENODEV;
+ }
+
+ indio_dev = devm_iio_device_alloc(dev, sizeof(*mma7455));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, indio_dev);
+ mma7455 = iio_priv(indio_dev);
+ mma7455->regmap = regmap;
+ mma7455->dev = dev;
+
+ indio_dev->info = &mma7455_info;
+ indio_dev->name = name;
+ indio_dev->dev.parent = dev;
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->channels = mma7455_channels;
+ indio_dev->num_channels = ARRAY_SIZE(mma7455_channels);
+ indio_dev->available_scan_masks = mma7455_scan_masks;
+
+ regmap_write(mma7455->regmap, MMA7455_REG_MCTL,
+ MMA7455_MCTL_MODE_MEASURE);
+
+ ret = iio_triggered_buffer_setup(indio_dev, NULL,
+ mma7455_trigger_handler, NULL);
+ if (ret) {
+ dev_err(dev, "unable to setup triggered buffer\n");
+ return ret;
+ }
+
+ ret = iio_device_register(indio_dev);
+ if (ret) {
+ dev_err(dev, "unable to register device\n");
+ iio_triggered_buffer_cleanup(indio_dev);
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mma7455_core_probe);
+
+int mma7455_core_remove(struct device *dev)
+{
+ struct iio_dev *indio_dev = dev_get_drvdata(dev);
+ struct mma7455_data *mma7455 = iio_priv(indio_dev);
+
+ iio_device_unregister(indio_dev);
+ iio_triggered_buffer_cleanup(indio_dev);
+
+ regmap_write(mma7455->regmap, MMA7455_REG_MCTL,
+ MMA7455_MCTL_MODE_STANDBY);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mma7455_core_remove);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L core accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma7455_i2c.c b/drivers/iio/accel/mma7455_i2c.c
new file mode 100644
index 000000000000..3cab5fb4a3c4
--- /dev/null
+++ b/drivers/iio/accel/mma7455_i2c.c
@@ -0,0 +1,56 @@
+/*
+ * IIO accel I2C driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "mma7455.h"
+
+static int mma7455_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct regmap *regmap;
+ const char *name = NULL;
+
+ regmap = devm_regmap_init_i2c(i2c, &mma7455_core_regmap);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ if (id)
+ name = id->name;
+
+ return mma7455_core_probe(&i2c->dev, regmap, name);
+}
+
+static int mma7455_i2c_remove(struct i2c_client *i2c)
+{
+ return mma7455_core_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id mma7455_i2c_ids[] = {
+ { "mma7455", 0 },
+ { "mma7456", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mma7455_i2c_ids);
+
+static struct i2c_driver mma7455_i2c_driver = {
+ .probe = mma7455_i2c_probe,
+ .remove = mma7455_i2c_remove,
+ .id_table = mma7455_i2c_ids,
+ .driver = {
+ .name = "mma7455-i2c",
+ },
+};
+module_i2c_driver(mma7455_i2c_driver);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L I2C accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma7455_spi.c b/drivers/iio/accel/mma7455_spi.c
new file mode 100644
index 000000000000..79df8f27cf99
--- /dev/null
+++ b/drivers/iio/accel/mma7455_spi.c
@@ -0,0 +1,52 @@
+/*
+ * IIO accel SPI driver for Freescale MMA7455L 3-axis 10-bit accelerometer
+ * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+
+#include "mma7455.h"
+
+static int mma7455_spi_probe(struct spi_device *spi)
+{
+ const struct spi_device_id *id = spi_get_device_id(spi);
+ struct regmap *regmap;
+
+ regmap = devm_regmap_init_spi(spi, &mma7455_core_regmap);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ return mma7455_core_probe(&spi->dev, regmap, id->name);
+}
+
+static int mma7455_spi_remove(struct spi_device *spi)
+{
+ return mma7455_core_remove(&spi->dev);
+}
+
+static const struct spi_device_id mma7455_spi_ids[] = {
+ { "mma7455", 0 },
+ { "mma7456", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, mma7455_spi_ids);
+
+static struct spi_driver mma7455_spi_driver = {
+ .probe = mma7455_spi_probe,
+ .remove = mma7455_spi_remove,
+ .id_table = mma7455_spi_ids,
+ .driver = {
+ .name = "mma7455-spi",
+ },
+};
+module_spi_driver(mma7455_spi_driver);
+
+MODULE_AUTHOR("Joachim Eastwood <manabian@gmail.com>");
+MODULE_DESCRIPTION("Freescale MMA7455L SPI accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 1eccc2dcf14c..ccc632a7cf01 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -29,6 +29,7 @@
#include <linux/iio/events.h>
#include <linux/delay.h>
#include <linux/of_device.h>
+#include <linux/of_irq.h>
#define MMA8452_STATUS 0x00
#define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
@@ -57,7 +58,6 @@
#define MMA8452_FF_MT_COUNT 0x18
#define MMA8452_TRANSIENT_CFG 0x1d
#define MMA8452_TRANSIENT_CFG_HPF_BYP BIT(0)
-#define MMA8452_TRANSIENT_CFG_CHAN(chan) BIT(chan + 1)
#define MMA8452_TRANSIENT_CFG_ELE BIT(4)
#define MMA8452_TRANSIENT_SRC 0x1e
#define MMA8452_TRANSIENT_SRC_XTRANSE BIT(1)
@@ -143,6 +143,13 @@ struct mma_chip_info {
u8 ev_count;
};
+enum {
+ idx_x,
+ idx_y,
+ idx_z,
+ idx_ts,
+};
+
static int mma8452_drdy(struct mma8452_data *data)
{
int tries = 150;
@@ -816,31 +823,31 @@ static struct attribute_group mma8452_event_attribute_group = {
}
static const struct iio_chan_spec mma8452_channels[] = {
- MMA8452_CHANNEL(X, 0, 12),
- MMA8452_CHANNEL(Y, 1, 12),
- MMA8452_CHANNEL(Z, 2, 12),
- IIO_CHAN_SOFT_TIMESTAMP(3),
+ MMA8452_CHANNEL(X, idx_x, 12),
+ MMA8452_CHANNEL(Y, idx_y, 12),
+ MMA8452_CHANNEL(Z, idx_z, 12),
+ IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
};
static const struct iio_chan_spec mma8453_channels[] = {
- MMA8452_CHANNEL(X, 0, 10),
- MMA8452_CHANNEL(Y, 1, 10),
- MMA8452_CHANNEL(Z, 2, 10),
- IIO_CHAN_SOFT_TIMESTAMP(3),
+ MMA8452_CHANNEL(X, idx_x, 10),
+ MMA8452_CHANNEL(Y, idx_y, 10),
+ MMA8452_CHANNEL(Z, idx_z, 10),
+ IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
};
static const struct iio_chan_spec mma8652_channels[] = {
- MMA8652_CHANNEL(X, 0, 12),
- MMA8652_CHANNEL(Y, 1, 12),
- MMA8652_CHANNEL(Z, 2, 12),
- IIO_CHAN_SOFT_TIMESTAMP(3),
+ MMA8652_CHANNEL(X, idx_x, 12),
+ MMA8652_CHANNEL(Y, idx_y, 12),
+ MMA8652_CHANNEL(Z, idx_z, 12),
+ IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
};
static const struct iio_chan_spec mma8653_channels[] = {
- MMA8652_CHANNEL(X, 0, 10),
- MMA8652_CHANNEL(Y, 1, 10),
- MMA8652_CHANNEL(Z, 2, 10),
- IIO_CHAN_SOFT_TIMESTAMP(3),
+ MMA8652_CHANNEL(X, idx_x, 10),
+ MMA8652_CHANNEL(Y, idx_y, 10),
+ MMA8652_CHANNEL(Z, idx_z, 10),
+ IIO_CHAN_SOFT_TIMESTAMP(idx_ts),
};
enum {
@@ -1130,13 +1137,21 @@ static int mma8452_probe(struct i2c_client *client,
MMA8452_INT_FF_MT;
int enabled_interrupts = MMA8452_INT_TRANS |
MMA8452_INT_FF_MT;
+ int irq2;
- /* Assume wired to INT1 pin */
- ret = i2c_smbus_write_byte_data(client,
- MMA8452_CTRL_REG5,
- supported_interrupts);
- if (ret < 0)
- return ret;
+ irq2 = of_irq_get_byname(client->dev.of_node, "INT2");
+
+ if (irq2 == client->irq) {
+ dev_dbg(&client->dev, "using interrupt line INT2\n");
+ } else {
+ ret = i2c_smbus_write_byte_data(client,
+ MMA8452_CTRL_REG5,
+ supported_interrupts);
+ if (ret < 0)
+ return ret;
+
+ dev_dbg(&client->dev, "using interrupt line INT1\n");
+ }
ret = i2c_smbus_write_byte_data(client,
MMA8452_CTRL_REG4,
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 7db7cc0bf362..d899a4d4307f 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -495,25 +495,23 @@ static int mma9551_probe(struct i2c_client *client,
if (ret < 0)
goto out_poweroff;
- ret = iio_device_register(indio_dev);
- if (ret < 0) {
- dev_err(&client->dev, "unable to register iio device\n");
- goto out_poweroff;
- }
-
ret = pm_runtime_set_active(&client->dev);
if (ret < 0)
- goto out_iio_unregister;
+ goto out_poweroff;
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev,
MMA9551_AUTO_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&client->dev);
+ ret = iio_device_register(indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to register iio device\n");
+ goto out_poweroff;
+ }
+
return 0;
-out_iio_unregister:
- iio_device_unregister(indio_dev);
out_poweroff:
mma9551_set_device_state(client, false);
@@ -525,11 +523,12 @@ static int mma9551_remove(struct i2c_client *client)
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct mma9551_data *data = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
+
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
pm_runtime_put_noidle(&client->dev);
- iio_device_unregister(indio_dev);
mutex_lock(&data->mutex);
mma9551_set_device_state(data->client, false);
mutex_unlock(&data->mutex);
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 9408ef3add58..fa7d36217c4b 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -1133,27 +1133,24 @@ static int mma9553_probe(struct i2c_client *client,
}
}
- ret = iio_device_register(indio_dev);
- if (ret < 0) {
- dev_err(&client->dev, "unable to register iio device\n");
- goto out_poweroff;
- }
-
ret = pm_runtime_set_active(&client->dev);
if (ret < 0)
- goto out_iio_unregister;
+ goto out_poweroff;
pm_runtime_enable(&client->dev);
pm_runtime_set_autosuspend_delay(&client->dev,
MMA9551_AUTO_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(&client->dev);
- dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
+ ret = iio_device_register(indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "unable to register iio device\n");
+ goto out_poweroff;
+ }
+ dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
return 0;
-out_iio_unregister:
- iio_device_unregister(indio_dev);
out_poweroff:
mma9551_set_device_state(client, false);
return ret;
@@ -1164,11 +1161,12 @@ static int mma9553_remove(struct i2c_client *client)
struct iio_dev *indio_dev = i2c_get_clientdata(client);
struct mma9553_data *data = iio_priv(indio_dev);
+ iio_device_unregister(indio_dev);
+
pm_runtime_disable(&client->dev);
pm_runtime_set_suspended(&client->dev);
pm_runtime_put_noidle(&client->dev);
- iio_device_unregister(indio_dev);
mutex_lock(&data->mutex);
mma9551_set_device_state(data->client, false);
mutex_unlock(&data->mutex);
diff --git a/drivers/iio/accel/mxc6255.c b/drivers/iio/accel/mxc6255.c
new file mode 100644
index 000000000000..97ccde722e7b
--- /dev/null
+++ b/drivers/iio/accel/mxc6255.c
@@ -0,0 +1,198 @@
+/*
+ * MXC6255 - MEMSIC orientation sensing accelerometer
+ *
+ * Copyright (c) 2015, Intel Corporation.
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for MXC6255 (7-bit I2C slave address 0x15).
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/iio/iio.h>
+#include <linux/delay.h>
+#include <linux/acpi.h>
+#include <linux/regmap.h>
+#include <linux/iio/sysfs.h>
+
+#define MXC6255_DRV_NAME "mxc6255"
+#define MXC6255_REGMAP_NAME "mxc6255_regmap"
+
+#define MXC6255_REG_XOUT 0x00
+#define MXC6255_REG_YOUT 0x01
+#define MXC6255_REG_CHIP_ID 0x08
+
+#define MXC6255_CHIP_ID 0x05
+
+/*
+ * MXC6255 has only one measurement range: +/- 2G.
+ * The acceleration output is an 8-bit value.
+ *
+ * Scale is calculated as follows:
+ * (2 + 2) * 9.80665 / (2^8 - 1) = 0.153829
+ *
+ * Scale value for +/- 2G measurement range
+ */
+#define MXC6255_SCALE 153829
+
+enum mxc6255_axis {
+ AXIS_X,
+ AXIS_Y,
+};
+
+struct mxc6255_data {
+ struct i2c_client *client;
+ struct regmap *regmap;
+};
+
+static int mxc6255_read_raw(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val, int *val2, long mask)
+{
+ struct mxc6255_data *data = iio_priv(indio_dev);
+ unsigned int reg;
+ int ret;
+
+ switch (mask) {
+ case IIO_CHAN_INFO_RAW:
+ ret = regmap_read(data->regmap, chan->address, &reg);
+ if (ret < 0) {
+ dev_err(&data->client->dev,
+ "Error reading reg %lu\n", chan->address);
+ return ret;
+ }
+
+ *val = sign_extend32(reg, 7);
+ return IIO_VAL_INT;
+ case IIO_CHAN_INFO_SCALE:
+ *val = 0;
+ *val2 = MXC6255_SCALE;
+ return IIO_VAL_INT_PLUS_MICRO;
+ default:
+ return -EINVAL;
+ }
+}
+
+static const struct iio_info mxc6255_info = {
+ .driver_module = THIS_MODULE,
+ .read_raw = mxc6255_read_raw,
+};
+
+#define MXC6255_CHANNEL(_axis, reg) { \
+ .type = IIO_ACCEL, \
+ .modified = 1, \
+ .channel2 = IIO_MOD_##_axis, \
+ .address = reg, \
+ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
+}
+
+static const struct iio_chan_spec mxc6255_channels[] = {
+ MXC6255_CHANNEL(X, MXC6255_REG_XOUT),
+ MXC6255_CHANNEL(Y, MXC6255_REG_YOUT),
+};
+
+static bool mxc6255_is_readable_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MXC6255_REG_XOUT:
+ case MXC6255_REG_YOUT:
+ case MXC6255_REG_CHIP_ID:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config mxc6255_regmap_config = {
+ .name = MXC6255_REGMAP_NAME,
+
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .readable_reg = mxc6255_is_readable_reg,
+};
+
+static int mxc6255_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct mxc6255_data *data;
+ struct iio_dev *indio_dev;
+ struct regmap *regmap;
+ unsigned int chip_id;
+ int ret;
+
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+ if (!indio_dev)
+ return -ENOMEM;
+
+ regmap = devm_regmap_init_i2c(client, &mxc6255_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(&client->dev, "Error initializing regmap\n");
+ return PTR_ERR(regmap);
+ }
+
+ data = iio_priv(indio_dev);
+ i2c_set_clientdata(client, indio_dev);
+ data->client = client;
+ data->regmap = regmap;
+
+ indio_dev->name = MXC6255_DRV_NAME;
+ indio_dev->dev.parent = &client->dev;
+ indio_dev->channels = mxc6255_channels;
+ indio_dev->num_channels = ARRAY_SIZE(mxc6255_channels);
+ indio_dev->modes = INDIO_DIRECT_MODE;
+ indio_dev->info = &mxc6255_info;
+
+ ret = regmap_read(data->regmap, MXC6255_REG_CHIP_ID, &chip_id);
+ if (ret < 0) {
+ dev_err(&client->dev, "Error reading chip id %d\n", ret);
+ return ret;
+ }
+
+ if (chip_id != MXC6255_CHIP_ID) {
+ dev_err(&client->dev, "Invalid chip id %x\n", chip_id);
+ return -ENODEV;
+ }
+
+ dev_dbg(&client->dev, "Chip id %x\n", chip_id);
+
+ ret = devm_iio_device_register(&client->dev, indio_dev);
+ if (ret < 0) {
+ dev_err(&client->dev, "Could not register IIO device\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct acpi_device_id mxc6255_acpi_match[] = {
+ {"MXC6255", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, mxc6255_acpi_match);
+
+static const struct i2c_device_id mxc6255_id[] = {
+ {"mxc6255", 0},
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, mxc6255_id);
+
+static struct i2c_driver mxc6255_driver = {
+ .driver = {
+ .name = MXC6255_DRV_NAME,
+ .acpi_match_table = ACPI_PTR(mxc6255_acpi_match),
+ },
+ .probe = mxc6255_probe,
+ .id_table = mxc6255_id,
+};
+
+module_i2c_driver(mxc6255_driver);
+
+MODULE_AUTHOR("Teodora Baluta <teodora.baluta@intel.com>");
+MODULE_DESCRIPTION("MEMSIC MXC6255 orientation sensing accelerometer driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 468f21fa2950..5d4a1897b293 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -27,6 +27,7 @@
#define LSM303DLM_ACCEL_DEV_NAME "lsm303dlm_accel"
#define LSM330_ACCEL_DEV_NAME "lsm330_accel"
#define LSM303AGR_ACCEL_DEV_NAME "lsm303agr_accel"
+#define LIS2DH12_ACCEL_DEV_NAME "lis2dh12_accel"
/**
* struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 197a08b4e2f3..70f042797f15 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -232,6 +232,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
[3] = LSM330DL_ACCEL_DEV_NAME,
[4] = LSM330DLC_ACCEL_DEV_NAME,
[5] = LSM303AGR_ACCEL_DEV_NAME,
+ [6] = LIS2DH12_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 8b9cc84fd44f..294a32f89367 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -72,6 +72,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lsm303agr-accel",
.data = LSM303AGR_ACCEL_DEV_NAME,
},
+ {
+ .compatible = "st,lis2dh12-accel",
+ .data = LIS2DH12_ACCEL_DEV_NAME,
+ },
{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -121,6 +125,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
+ { LIS2DH12_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index f71b0d391272..fcd5847a3fd3 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -58,6 +58,7 @@ static const struct spi_device_id st_accel_id_table[] = {
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
+ { LIS2DH12_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_accel_id_table);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-17 05:25:26 +0300