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Merge tag 'iio-for-4.3b-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Browse Source 
Jonathan writes:

Second set of new device support, features and cleanup for the 4.3 cycle.
Take 2 also includes a fix set that was too late for the 4.2 cycle.

As we had a lot of tools and docs work in this set, I have broken those
out into their own categories in this description.

Fixes from the pull request '4th set of IIO fixes for the 4.2 cycle'.
* Poll functions for both event chardev and the buffer one were returning
  negative error codes (via a positive value).
* A recent change to lsiio adding some error handling that was wrong and
  stopped the tool working.
* bmg160 was missing some dependencies in Kconfig
* berlin2-adc had a misshandled register (wrote a value rather than a bitmap)

New device support
* TI opt3001 light sensor
* TXC PA12 ALS and proximity sensor.
* mcp3301 ADC support (in mcp320x driver)
* ST lsm303agr accelerometer and magnetometer drivers (plus some st-sensors
  common support to allow different WHOAMI register addresses, devices with
  fixed scale and allow interrupt equiped magnetometers).
* ADIS16305, ADIS16367, ADIS16445IMUs (in the adis16400 driver)
* ADIS16266 gyro (in the adis16260 driver)
* ADIS16137 gyro (in the adis16136 driver)

New functionality
* mmc35240 DT bindings.
* Inverse unit conversion macros to aid handing of values written to sysfs
  attributes.

Core cleanup
* Forward declaration of struct iio_trigger to avoid a compile warning.

Driver cleanup / fixes
* mxs-lradc
  - Clarify which parts are supported.
  - Fix spelling erorrs.
  - Missing/extra includes
  - reorder includes
  - add datasheet name listings for all usable channels (to allow them
    to be bound by name from consumer drivers)
* acpi-als - add some function prefixes as per general iio style.
* bmc150_magn - replace a magic value with the existing define.
* vf610 - determine possible sample frequencies taking into account the
  electrical characteristics (defining a minimum sample time)
* dht11
  - whitespace
  - additional docs
  - avoid mulitple assignments in one line
  - Use the new funciton ktime_get_resolution_ns to cleanup a nasty trick
    previously used for timing.
* Fix all drivers that consider 0 a valid IRQ for historical reasons.
* Export I2C module alias info where previously missing (to allow autoprobing)
* Export OF module alias info where previously missing.
* mmc35240 - switch some variables into arrays to improve readability.
* mlx90614 - define some magic numbers for readability.
* bmc150_magn
  - expand area locked by a mutex to cover all the use of the
    data->buffer.
  - use descriptive naming for a mask instead of a magic value.
* berin2-adc
  - pass up an error code rather that a generic error
  - constify the iio_chan_spec
  - some other little tidy ups.
* stk8312
  - fix a dependency on triggered buffers in kconfig
  - add a check for invalid attribute values
  - improve error handling by returning error codes where possible and
    return immediately where relevant
  - rework macro defs to use GENMASK etc
  - change some variable types to reduce unnecessary casting
  - clean up code style
  - drop a local buffer copy for bulk reads and use the one in data->buffer
     instead.
* adis16400 - the adis16448 gyroscope scale was wrong.
* adis16480 - some more wrong scales for various parts.
* adis16300 - has an undocumented product id and serial number registers so
  use them.
* iio_simple_dummy - fix some wrong code indentation.
* bmc150-accel - use the chip ID to detect the chip present rather than
  verifying the expected part was there.  This was in response to a wrong
  ACPI entry on the WinBook TW100.
* mma8452
  - fix _get_hp_filter_index
  - drop a double include
  - pass up an error code rather than rewriting it
  - range check input values to attribute writes
  - register defs tidy up using GENMASK and reordering them to be easier to
    follow.
  - various coding style cleanups
  - put the Kconfig entry in the write place (alphabetically).

Tools related
* Tools cleanup - drop an explicity NULL comparison, some unnecessary braces,
  use the ARRAY_SIZE macro, send error messages to stderr instead of dropping
  them in the middle of normal output.
* Fix tools to allow that scale and offset attributes are optional.
* More tools fixes including allowing true 32bit data (previously an overflow
  prevented more than 31bits)
* Drop a stray header guard that ended up in a c file.
* Make calc_digits static as it isn't exported or in the header.
* Set ci_array pointer to NULL after free as a protection against non safe
  usage of the tools core code.  Also convert a double pointer to a single
  one as the extra level of indirection was unnecessary.

Docs
* DocBook introduction by Daniel Baluta.  Glad we are beginning to
  draw together some more introductory docs to suplement the various
  tools / examples.
* Drop bytes_per_datum sysfs attribute docs as it no longer exists.
* A whole load of missing / fixing of kernel-doc for the core of IIO.
* Document the trigger name sysfs attribute in the ABI docs.
* Minor typos in the ABI docs related to power down modes.
This commit is contained in:
Greg Kroah-Hartman
2015-08-12 12:43:41 -07:00
parent a73e99cb67 41d903c000
commit 1c46ae0af6
67 changed files with 3146 additions and 572 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/ABI/testing/sysfs-bus-iio
+3 -10
View File
@@ -493,7 +493,7 @@ Contact: linux-iio@vger.kernel.org
Description:
Specifies the output powerdown mode.
DAC output stage is disconnected from the amplifier and
1kohm_to_gnd: connected to ground via an 1kOhm resistor,
1kohm_to_gnd: connected to ground via an 1kOhm resistor,
6kohm_to_gnd: connected to ground via a 6kOhm resistor,
20kohm_to_gnd: connected to ground via a 20kOhm resistor,
100kohm_to_gnd: connected to ground via an 100kOhm resistor,
@@ -503,9 +503,9 @@ Description:
outX_powerdown_mode_available. If Y is not present the
mode is shared across all outputs.
What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_voltageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvoltageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
@@ -1040,13 +1040,6 @@ Contact: linux-iio@vger.kernel.org
Description:
Number of scans contained by the buffer.
What: /sys/bus/iio/devices/iio:deviceX/buffer/bytes_per_datum
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
Bytes per scan. Due to alignment fun, the scan may be larger
than implied directly by the scan_element parameters.
What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org
Documentation/ABI/testing/sysfs-bus-iio-trigger-sysfs
+9
View File
@@ -9,3 +9,12 @@ Description:
automated testing or in situations, where other trigger methods
are not applicable. For example no RTC or spare GPIOs.
X is the IIO index of the trigger.
What: /sys/bus/iio/devices/triggerX/name
KernelVersion: 2.6.39
Contact: linux-iio@vger.kernel.org
Description:
The name attribute holds a description string for the current
trigger. In order to associate the trigger with an IIO device
one should write this name string to
/sys/bus/iio/devices/iio:deviceY/trigger/current_trigger.
Documentation/DocBook/Makefile
+1 -1
View File
@@ -15,7 +15,7 @@ DOCBOOKS := z8530book.xml device-drivers.xml \
80211.xml debugobjects.xml sh.xml regulator.xml \
alsa-driver-api.xml writing-an-alsa-driver.xml \
tracepoint.xml drm.xml media_api.xml w1.xml \
writing_musb_glue_layer.xml crypto-API.xml
writing_musb_glue_layer.xml crypto-API.xml iio.xml
include Documentation/DocBook/media/Makefile
Documentation/DocBook/iio.tmpl
+697
View File
File diff suppressed because it is too large Load Diff
Documentation/devicetree/bindings/iio/adc/mcp320x.txt
+1
View File
@@ -18,6 +18,7 @@ Required properties:
"mcp3202"
"mcp3204"
"mcp3208"
"mcp3301"
Examples:
Documentation/devicetree/bindings/iio/adc/vf610-adc.txt
+5
View File
@@ -17,6 +17,11 @@ Recommended properties:
- Frequency in normal mode (ADLPC=0, ADHSC=0)
- Frequency in high-speed mode (ADLPC=0, ADHSC=1)
- Frequency in low-power mode (ADLPC=1, ADHSC=0)
- min-sample-time: Minimum sampling time in nanoseconds. This value has
to be chosen according to the conversion mode and the connected analog
source resistance (R_as) and capacitance (C_as). Refer the datasheet's
operating requirements. A safe default across a wide range of R_as and
C_as as well as conversion modes is 1000ns.
Example:
adc0: adc@4003b000 {
Documentation/devicetree/bindings/iio/magnetometer/mmc35240.txt
+13
View File
@@ -0,0 +1,13 @@
* MEMSIC MMC35240 magnetometer sensor
Required properties:
- compatible : should be "memsic,mmc35240"
- reg : the I2C address of the magnetometer
Example:
mmc35240@30 {
compatible = "memsic,mmc35240";
reg = <0x30>;
};
Documentation/devicetree/bindings/iio/st-sensors.txt
+2
View File
@@ -35,6 +35,7 @@ Accelerometers:
- st,lsm303dl-accel
- st,lsm303dlm-accel
- st,lsm330-accel
- st,lsm303agr-accel
Gyroscopes:
- st,l3g4200d-gyro
@@ -46,6 +47,7 @@ Gyroscopes:
- st,lsm330-gyro
Magnetometers:
- st,lsm303agr-magn
- st,lsm303dlh-magn
- st,lsm303dlhc-magn
- st,lsm303dlm-magn
Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt
+1 -1
View File
@@ -1,4 +1,4 @@
* Freescale i.MX28 LRADC device driver
* Freescale MXS LRADC device driver
Required properties:
- compatible: Should be "fsl,imx23-lradc" for i.MX23 SoC and "fsl,imx28-lradc"
drivers/iio/accel/Kconfig
+14 -12
View File
@@ -86,18 +86,6 @@ config KXSD9
To compile this driver as a module, choose M here: the module
will be called kxsd9.
config MMA8452
tristate "Freescale MMA8452Q Accelerometer Driver"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for the Freescale MMA8452Q 3-axis
accelerometer.
To compile this driver as a module, choose M here: the module
will be called mma8452.
config KXCJK1013
tristate "Kionix 3-Axis Accelerometer Driver"
depends on I2C
@@ -111,6 +99,18 @@ config KXCJK1013
To compile this driver as a module, choose M here: the module will
be called kxcjk-1013.
config MMA8452
tristate "Freescale MMA8452Q Accelerometer Driver"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for the Freescale MMA8452Q 3-axis
accelerometer.
To compile this driver as a module, choose M here: the module
will be called mma8452.
config MMA9551_CORE
tristate
@@ -140,6 +140,8 @@ config MMA9553
config STK8312
tristate "Sensortek STK8312 3-Axis Accelerometer Driver"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say yes here to get support for the Sensortek STK8312 3-axis
accelerometer.
drivers/iio/accel/bmc150-accel.c
+74 -82
View File
@@ -151,6 +151,7 @@ struct bmc150_scale_info {
};
struct bmc150_accel_chip_info {
const char *name;
u8 chip_id;
const struct iio_chan_spec *channels;
int num_channels;
@@ -345,63 +346,6 @@ static int bmc150_accel_any_motion_setup(struct bmc150_accel_trigger *t,
return 0;
}
static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
{
int ret;
ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_CHIP_ID);
if (ret < 0) {
dev_err(&data->client->dev, "Error: Reading chip id\n");
return ret;
}
dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
if (ret != data->chip_info->chip_id) {
dev_err(&data->client->dev, "Invalid chip %x\n", ret);
return -ENODEV;
}
ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
if (ret < 0)
return ret;
/* Set Bandwidth */
ret = bmc150_accel_set_bw(data, BMC150_ACCEL_DEF_BW, 0);
if (ret < 0)
return ret;
/* Set Default Range */
ret = i2c_smbus_write_byte_data(data->client,
BMC150_ACCEL_REG_PMU_RANGE,
BMC150_ACCEL_DEF_RANGE_4G);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_pmu_range\n");
return ret;
}
data->range = BMC150_ACCEL_DEF_RANGE_4G;
/* Set default slope duration and thresholds */
data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
ret = bmc150_accel_update_slope(data);
if (ret < 0)
return ret;
/* Set default as latched interrupts */
ret = i2c_smbus_write_byte_data(data->client,
BMC150_ACCEL_REG_INT_RST_LATCH,
BMC150_ACCEL_INT_MODE_LATCH_INT |
BMC150_ACCEL_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_int_rst_latch\n");
return ret;
}
return 0;
}
static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
int *val2)
{
@@ -1119,6 +1063,7 @@ enum {
static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
[bmc150] = {
.name = "BMC150A",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1128,6 +1073,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bmi055] = {
.name = "BMI055A",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1137,6 +1083,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma255] = {
.name = "BMA0255",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1146,6 +1093,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma250e] = {
.name = "BMA250E",
.chip_id = 0xF9,
.channels = bma250e_accel_channels,
.num_channels = ARRAY_SIZE(bma250e_accel_channels),
@@ -1155,6 +1103,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{306457, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma222e] = {
.name = "BMA222E",
.chip_id = 0xF8,
.channels = bma222e_accel_channels,
.num_channels = ARRAY_SIZE(bma222e_accel_channels),
@@ -1164,6 +1113,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{1225831, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma280] = {
.name = "BMA0280",
.chip_id = 0xFB,
.channels = bma280_accel_channels,
.num_channels = ARRAY_SIZE(bma280_accel_channels),
@@ -1410,20 +1360,6 @@ static irqreturn_t bmc150_accel_irq_handler(int irq, void *private)
return IRQ_NONE;
}
static const char *bmc150_accel_match_acpi_device(struct device *dev, int *data)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*data = (int)id->driver_data;
return dev_name(dev);
}
static int bmc150_accel_gpio_probe(struct i2c_client *client,
struct bmc150_accel_data *data)
{
@@ -1618,6 +1554,70 @@ static const struct iio_buffer_setup_ops bmc150_accel_buffer_ops = {
.postdisable = bmc150_accel_buffer_postdisable,
};
static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
{
int ret, i;
ret = i2c_smbus_read_byte_data(data->client, BMC150_ACCEL_REG_CHIP_ID);
if (ret < 0) {
dev_err(&data->client->dev, "Error: Reading chip id\n");
return ret;
}
dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
for (i = 0; i < ARRAY_SIZE(bmc150_accel_chip_info_tbl); i++) {
if (bmc150_accel_chip_info_tbl[i].chip_id == ret) {
data->chip_info = &bmc150_accel_chip_info_tbl[i];
break;
}
}
if (!data->chip_info) {
dev_err(&data->client->dev, "Unsupported chip %x\n", ret);
return -ENODEV;
}
ret = bmc150_accel_set_mode(data, BMC150_ACCEL_SLEEP_MODE_NORMAL, 0);
if (ret < 0)
return ret;
/* Set Bandwidth */
ret = bmc150_accel_set_bw(data, BMC150_ACCEL_DEF_BW, 0);
if (ret < 0)
return ret;
/* Set Default Range */
ret = i2c_smbus_write_byte_data(data->client,
BMC150_ACCEL_REG_PMU_RANGE,
BMC150_ACCEL_DEF_RANGE_4G);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_pmu_range\n");
return ret;
}
data->range = BMC150_ACCEL_DEF_RANGE_4G;
/* Set default slope duration and thresholds */
data->slope_thres = BMC150_ACCEL_DEF_SLOPE_THRESHOLD;
data->slope_dur = BMC150_ACCEL_DEF_SLOPE_DURATION;
ret = bmc150_accel_update_slope(data);
if (ret < 0)
return ret;
/* Set default as latched interrupts */
ret = i2c_smbus_write_byte_data(data->client,
BMC150_ACCEL_REG_INT_RST_LATCH,
BMC150_ACCEL_INT_MODE_LATCH_INT |
BMC150_ACCEL_INT_MODE_LATCH_RESET);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_int_rst_latch\n");
return ret;
}
return 0;
}
static int bmc150_accel_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@@ -1625,7 +1625,6 @@ static int bmc150_accel_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
int ret;
const char *name = NULL;
int chip_id = 0;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
if (!indio_dev)
@@ -1635,15 +1634,8 @@ static int bmc150_accel_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
data->client = client;
if (id) {
if (id)
name = id->name;
chip_id = id->driver_data;
}
if (ACPI_HANDLE(&client->dev))
name = bmc150_accel_match_acpi_device(&client->dev, &chip_id);
data->chip_info = &bmc150_accel_chip_info_tbl[chip_id];
ret = bmc150_accel_chip_init(data);
if (ret < 0)
@@ -1654,7 +1646,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
indio_dev->dev.parent = &client->dev;
indio_dev->channels = data->chip_info->channels;
indio_dev->num_channels = data->chip_info->num_channels;
indio_dev->name = name;
indio_dev->name = name ? name : data->chip_info->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bmc150_accel_info;
@@ -1670,7 +1662,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = bmc150_accel_gpio_probe(client, data);
if (client->irq >= 0) {
if (client->irq > 0) {
ret = devm_request_threaded_irq(
&client->dev, client->irq,
bmc150_accel_irq_handler,
drivers/iio/accel/kxcjk-1013.c
+1 -1
View File
@@ -1240,7 +1240,7 @@ static int kxcjk1013_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = kxcjk1013_gpio_probe(client, data);
if (client->irq >= 0) {
if (client->irq > 0) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
kxcjk1013_data_rdy_trig_poll,
kxcjk1013_event_handler,
drivers/iio/accel/mma8452.c
+120 -91
View File
@@ -16,7 +16,6 @@
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger.h>
#include <linux/iio/trigger_consumer.h>
@@ -24,54 +23,51 @@
#include <linux/iio/events.h>
#include <linux/delay.h>
#define MMA8452_STATUS 0x00
#define MMA8452_OUT_X 0x01 /* MSB first, 12-bit */
#define MMA8452_OUT_Y 0x03
#define MMA8452_OUT_Z 0x05
#define MMA8452_INT_SRC 0x0c
#define MMA8452_WHO_AM_I 0x0d
#define MMA8452_DATA_CFG 0x0e
#define MMA8452_HP_FILTER_CUTOFF 0x0f
#define MMA8452_HP_FILTER_CUTOFF_SEL_MASK (BIT(0) | BIT(1))
#define MMA8452_TRANSIENT_CFG 0x1d
#define MMA8452_TRANSIENT_CFG_ELE BIT(4)
#define MMA8452_TRANSIENT_CFG_CHAN(chan) BIT(chan + 1)
#define MMA8452_TRANSIENT_CFG_HPF_BYP BIT(0)
#define MMA8452_TRANSIENT_SRC 0x1e
#define MMA8452_TRANSIENT_SRC_XTRANSE BIT(1)
#define MMA8452_TRANSIENT_SRC_YTRANSE BIT(3)
#define MMA8452_TRANSIENT_SRC_ZTRANSE BIT(5)
#define MMA8452_TRANSIENT_THS 0x1f
#define MMA8452_TRANSIENT_THS_MASK 0x7f
#define MMA8452_TRANSIENT_COUNT 0x20
#define MMA8452_OFF_X 0x2f
#define MMA8452_OFF_Y 0x30
#define MMA8452_OFF_Z 0x31
#define MMA8452_CTRL_REG1 0x2a
#define MMA8452_CTRL_REG2 0x2b
#define MMA8452_CTRL_REG2_RST BIT(6)
#define MMA8452_CTRL_REG4 0x2d
#define MMA8452_CTRL_REG5 0x2e
#define MMA8452_STATUS 0x00
#define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
#define MMA8452_OUT_X 0x01 /* MSB first, 12-bit */
#define MMA8452_OUT_Y 0x03
#define MMA8452_OUT_Z 0x05
#define MMA8452_INT_SRC 0x0c
#define MMA8452_WHO_AM_I 0x0d
#define MMA8452_DATA_CFG 0x0e
#define MMA8452_DATA_CFG_FS_MASK GENMASK(1, 0)
#define MMA8452_DATA_CFG_FS_2G 0
#define MMA8452_DATA_CFG_FS_4G 1
#define MMA8452_DATA_CFG_FS_8G 2
#define MMA8452_DATA_CFG_HPF_MASK BIT(4)
#define MMA8452_HP_FILTER_CUTOFF 0x0f
#define MMA8452_HP_FILTER_CUTOFF_SEL_MASK GENMASK(1, 0)
#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)
#define MMA8452_TRANSIENT_SRC_YTRANSE BIT(3)
#define MMA8452_TRANSIENT_SRC_ZTRANSE BIT(5)
#define MMA8452_TRANSIENT_THS 0x1f
#define MMA8452_TRANSIENT_THS_MASK GENMASK(6, 0)
#define MMA8452_TRANSIENT_COUNT 0x20
#define MMA8452_CTRL_REG1 0x2a
#define MMA8452_CTRL_ACTIVE BIT(0)
#define MMA8452_CTRL_DR_MASK GENMASK(5, 3)
#define MMA8452_CTRL_DR_SHIFT 3
#define MMA8452_CTRL_DR_DEFAULT 0x4 /* 50 Hz sample frequency */
#define MMA8452_CTRL_REG2 0x2b
#define MMA8452_CTRL_REG2_RST BIT(6)
#define MMA8452_CTRL_REG4 0x2d
#define MMA8452_CTRL_REG5 0x2e
#define MMA8452_OFF_X 0x2f
#define MMA8452_OFF_Y 0x30
#define MMA8452_OFF_Z 0x31
#define MMA8452_MAX_REG 0x31
#define MMA8452_MAX_REG 0x31
#define MMA8452_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
#define MMA8452_INT_DRDY BIT(0)
#define MMA8452_INT_TRANS BIT(5)
#define MMA8452_CTRL_DR_MASK (BIT(5) | BIT(4) | BIT(3))
#define MMA8452_CTRL_DR_SHIFT 3
#define MMA8452_CTRL_DR_DEFAULT 0x4 /* 50 Hz sample frequency */
#define MMA8452_CTRL_ACTIVE BIT(0)
#define MMA8452_DATA_CFG_FS_MASK (BIT(1) | BIT(0))
#define MMA8452_DATA_CFG_FS_2G 0
#define MMA8452_DATA_CFG_FS_4G 1
#define MMA8452_DATA_CFG_FS_8G 2
#define MMA8452_DATA_CFG_HPF_MASK BIT(4)
#define MMA8452_INT_DRDY BIT(0)
#define MMA8452_INT_TRANS BIT(5)
#define MMA8452_DEVICE_ID 0x2a
#define MMA8452_DEVICE_ID 0x2a
struct mma8452_data {
struct i2c_client *client;
@@ -91,30 +87,34 @@ static int mma8452_drdy(struct mma8452_data *data)
return ret;
if ((ret & MMA8452_STATUS_DRDY) == MMA8452_STATUS_DRDY)
return 0;
msleep(20);
}
dev_err(&data->client->dev, "data not ready\n");
return -EIO;
}
static int mma8452_read(struct mma8452_data *data, __be16 buf[3])
{
int ret = mma8452_drdy(data);
if (ret < 0)
return ret;
return i2c_smbus_read_i2c_block_data(data->client,
MMA8452_OUT_X, 3 * sizeof(__be16), (u8 *) buf);
return i2c_smbus_read_i2c_block_data(data->client, MMA8452_OUT_X,
3 * sizeof(__be16), (u8 *)buf);
}
static ssize_t mma8452_show_int_plus_micros(char *buf,
const int (*vals)[2], int n)
static ssize_t mma8452_show_int_plus_micros(char *buf, const int (*vals)[2],
int n)
{
size_t len = 0;
while (n-- > 0)
len += scnprintf(buf + len, PAGE_SIZE - len,
"%d.%06d ", vals[n][0], vals[n][1]);
len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ",
vals[n][0], vals[n][1]);
/* replace trailing space by newline */
buf[len - 1] = '\n';
@@ -123,7 +123,7 @@ static ssize_t mma8452_show_int_plus_micros(char *buf,
}
static int mma8452_get_int_plus_micros_index(const int (*vals)[2], int n,
int val, int val2)
int val, int val2)
{
while (n-- > 0)
if (val == vals[n][0] && val2 == vals[n][1])
@@ -147,7 +147,7 @@ static const int mma8452_samp_freq[8][2] = {
* Hardware has fullscale of -2G, -4G, -8G corresponding to raw value -2048
* The userspace interface uses m/s^2 and we declare micro units
* So scale factor is given by:
* g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665
* g * N * 1000000 / 2048 for N = 2, 4, 8 and g = 9.80665
*/
static const int mma8452_scales[3][2] = {
{0, 9577}, {0, 19154}, {0, 38307}
@@ -178,17 +178,19 @@ static const int mma8452_hp_filter_cutoff[8][4][2] = {
};
static ssize_t mma8452_show_samp_freq_avail(struct device *dev,
struct device_attribute *attr, char *buf)
struct device_attribute *attr,
char *buf)
{
return mma8452_show_int_plus_micros(buf, mma8452_samp_freq,
ARRAY_SIZE(mma8452_samp_freq));
ARRAY_SIZE(mma8452_samp_freq));
}
static ssize_t mma8452_show_scale_avail(struct device *dev,
struct device_attribute *attr, char *buf)
struct device_attribute *attr,
char *buf)
{
return mma8452_show_int_plus_micros(buf, mma8452_scales,
ARRAY_SIZE(mma8452_scales));
ARRAY_SIZE(mma8452_scales));
}
static ssize_t mma8452_show_hp_cutoff_avail(struct device *dev,
@@ -205,22 +207,23 @@ static ssize_t mma8452_show_hp_cutoff_avail(struct device *dev,
static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(mma8452_show_samp_freq_avail);
static IIO_DEVICE_ATTR(in_accel_scale_available, S_IRUGO,
mma8452_show_scale_avail, NULL, 0);
mma8452_show_scale_avail, NULL, 0);
static IIO_DEVICE_ATTR(in_accel_filter_high_pass_3db_frequency_available,
S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
static int mma8452_get_samp_freq_index(struct mma8452_data *data,
int val, int val2)
int val, int val2)
{
return mma8452_get_int_plus_micros_index(mma8452_samp_freq,
ARRAY_SIZE(mma8452_samp_freq), val, val2);
ARRAY_SIZE(mma8452_samp_freq),
val, val2);
}
static int mma8452_get_scale_index(struct mma8452_data *data,
int val, int val2)
static int mma8452_get_scale_index(struct mma8452_data *data, int val, int val2)
{
return mma8452_get_int_plus_micros_index(mma8452_scales,
ARRAY_SIZE(mma8452_scales), val, val2);
ARRAY_SIZE(mma8452_scales),
val, val2);
}
static int mma8452_get_hp_filter_index(struct mma8452_data *data,
@@ -229,7 +232,7 @@ static int mma8452_get_hp_filter_index(struct mma8452_data *data,
int i = mma8452_get_odr_index(data);
return mma8452_get_int_plus_micros_index(mma8452_hp_filter_cutoff[i],
ARRAY_SIZE(mma8452_scales[0]), val, val2);
ARRAY_SIZE(mma8452_hp_filter_cutoff[0]), val, val2);
}
static int mma8452_read_hp_filter(struct mma8452_data *data, int *hz, int *uHz)
@@ -266,25 +269,31 @@ static int mma8452_read_raw(struct iio_dev *indio_dev,
mutex_unlock(&data->lock);
if (ret < 0)
return ret;
*val = sign_extend32(
be16_to_cpu(buffer[chan->scan_index]) >> 4, 11);
*val = sign_extend32(be16_to_cpu(buffer[chan->scan_index]) >> 4,
11);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
i = data->data_cfg & MMA8452_DATA_CFG_FS_MASK;
*val = mma8452_scales[i][0];
*val2 = mma8452_scales[i][1];
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_SAMP_FREQ:
i = mma8452_get_odr_index(data);
*val = mma8452_samp_freq[i][0];
*val2 = mma8452_samp_freq[i][1];
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_CALIBBIAS:
ret = i2c_smbus_read_byte_data(data->client, MMA8452_OFF_X +
chan->scan_index);
ret = i2c_smbus_read_byte_data(data->client,
MMA8452_OFF_X + chan->scan_index);
if (ret < 0)
return ret;
*val = sign_extend32(ret, 7);
return IIO_VAL_INT;
case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
if (data->data_cfg & MMA8452_DATA_CFG_HPF_MASK) {
@@ -295,21 +304,23 @@ static int mma8452_read_raw(struct iio_dev *indio_dev,
*val = 0;
*val2 = 0;
}
return IIO_VAL_INT_PLUS_MICRO;
}
return -EINVAL;
}
static int mma8452_standby(struct mma8452_data *data)
{
return i2c_smbus_write_byte_data(data->client, MMA8452_CTRL_REG1,
data->ctrl_reg1 & ~MMA8452_CTRL_ACTIVE);
data->ctrl_reg1 & ~MMA8452_CTRL_ACTIVE);
}
static int mma8452_active(struct mma8452_data *data)
{
return i2c_smbus_write_byte_data(data->client, MMA8452_CTRL_REG1,
data->ctrl_reg1);
data->ctrl_reg1);
}
static int mma8452_change_config(struct mma8452_data *data, u8 reg, u8 val)
@@ -334,6 +345,7 @@ static int mma8452_change_config(struct mma8452_data *data, u8 reg, u8 val)
ret = 0;
fail:
mutex_unlock(&data->lock);
return ret;
}
@@ -344,12 +356,13 @@ static int mma8452_set_hp_filter_frequency(struct mma8452_data *data,
i = mma8452_get_hp_filter_index(data, val, val2);
if (i < 0)
return -EINVAL;
return i;
reg = i2c_smbus_read_byte_data(data->client,
MMA8452_HP_FILTER_CUTOFF);
if (reg < 0)
return reg;
reg &= ~MMA8452_HP_FILTER_CUTOFF_SEL_MASK;
reg |= i;
@@ -370,25 +383,30 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SAMP_FREQ:
i = mma8452_get_samp_freq_index(data, val, val2);
if (i < 0)
return -EINVAL;
return i;
data->ctrl_reg1 &= ~MMA8452_CTRL_DR_MASK;
data->ctrl_reg1 |= i << MMA8452_CTRL_DR_SHIFT;
return mma8452_change_config(data, MMA8452_CTRL_REG1,
data->ctrl_reg1);
data->ctrl_reg1);
case IIO_CHAN_INFO_SCALE:
i = mma8452_get_scale_index(data, val, val2);
if (i < 0)
return -EINVAL;
return i;
data->data_cfg &= ~MMA8452_DATA_CFG_FS_MASK;
data->data_cfg |= i;
return mma8452_change_config(data, MMA8452_DATA_CFG,
data->data_cfg);
data->data_cfg);
case IIO_CHAN_INFO_CALIBBIAS:
if (val < -128 || val > 127)
return -EINVAL;
return mma8452_change_config(data, MMA8452_OFF_X +
chan->scan_index, val);
return mma8452_change_config(data,
MMA8452_OFF_X + chan->scan_index,
val);
case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY:
if (val == 0 && val2 == 0) {
@@ -399,8 +417,9 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
return mma8452_change_config(data, MMA8452_DATA_CFG,
data->data_cfg);
data->data_cfg);
default:
return -EINVAL;
@@ -425,6 +444,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
return ret;
*val = ret & MMA8452_TRANSIENT_THS_MASK;
return IIO_VAL_INT;
case IIO_EV_INFO_PERIOD:
@@ -437,6 +457,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
mma8452_get_odr_index(data)];
*val = us / USEC_PER_SEC;
*val2 = us % USEC_PER_SEC;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
@@ -453,6 +474,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
return IIO_VAL_INT_PLUS_MICRO;
default:
@@ -472,19 +494,22 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
switch (info) {
case IIO_EV_INFO_VALUE:
return mma8452_change_config(data, MMA8452_TRANSIENT_THS,
val & MMA8452_TRANSIENT_THS_MASK);
if (val < 0 || val > MMA8452_TRANSIENT_THS_MASK)
return -EINVAL;
return mma8452_change_config(data, MMA8452_TRANSIENT_THS, val);
case IIO_EV_INFO_PERIOD:
steps = (val * USEC_PER_SEC + val2) /
mma8452_transient_time_step_us[
mma8452_get_odr_index(data)];
if (steps > 0xff)
if (steps < 0 || steps > 0xff)
return -EINVAL;
return mma8452_change_config(data, MMA8452_TRANSIENT_COUNT,
steps);
case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
reg = i2c_smbus_read_byte_data(data->client,
MMA8452_TRANSIENT_CFG);
@@ -499,6 +524,7 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
if (ret < 0)
return ret;
}
return mma8452_change_config(data, MMA8452_TRANSIENT_CFG, reg);
default:
@@ -608,15 +634,16 @@ static irqreturn_t mma8452_trigger_handler(int irq, void *p)
u8 buffer[16]; /* 3 16-bit channels + padding + ts */
int ret;
ret = mma8452_read(data, (__be16 *) buffer);
ret = mma8452_read(data, (__be16 *)buffer);
if (ret < 0)
goto done;
iio_push_to_buffers_with_timestamp(indio_dev, buffer,
iio_get_time_ns());
iio_get_time_ns());
done:
iio_trigger_notify_done(indio_dev->trig);
return IRQ_HANDLED;
}
@@ -674,10 +701,10 @@ static struct attribute_group mma8452_event_attribute_group = {
.modified = 1, \
.channel2 = IIO_MOD_##axis, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_CALIBBIAS), \
BIT(IIO_CHAN_INFO_CALIBBIAS), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
BIT(IIO_CHAN_INFO_SCALE) | \
BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \
BIT(IIO_CHAN_INFO_SCALE) | \
BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \
.scan_index = idx, \
.scan_type = { \
.sign = 's', \
@@ -780,6 +807,7 @@ static int mma8452_trigger_setup(struct iio_dev *indio_dev)
return ret;
indio_dev->trig = trig;
return 0;
}
@@ -849,7 +877,7 @@ static int mma8452_probe(struct i2c_client *client,
data->data_cfg = MMA8452_DATA_CFG_FS_2G;
ret = i2c_smbus_write_byte_data(client, MMA8452_DATA_CFG,
data->data_cfg);
data->data_cfg);
if (ret < 0)
return ret;
@@ -891,14 +919,14 @@ static int mma8452_probe(struct i2c_client *client,
}
data->ctrl_reg1 = MMA8452_CTRL_ACTIVE |
(MMA8452_CTRL_DR_DEFAULT << MMA8452_CTRL_DR_SHIFT);
(MMA8452_CTRL_DR_DEFAULT << MMA8452_CTRL_DR_SHIFT);
ret = i2c_smbus_write_byte_data(client, MMA8452_CTRL_REG1,
data->ctrl_reg1);
if (ret < 0)
goto trigger_cleanup;
ret = iio_triggered_buffer_setup(indio_dev, NULL,
mma8452_trigger_handler, NULL);
mma8452_trigger_handler, NULL);
if (ret < 0)
goto trigger_cleanup;
@@ -968,6 +996,7 @@ static const struct of_device_id mma8452_dt_ids[] = {
{ .compatible = "fsl,mma8452" },
{ }
};
MODULE_DEVICE_TABLE(of, mma8452_dt_ids);
static struct i2c_driver mma8452_driver = {
.driver = {
drivers/iio/accel/mma9553.c
+1 -1
View File
@@ -1149,7 +1149,7 @@ static int mma9553_probe(struct i2c_client *client,
if (client->irq < 0)
client->irq = mma9553_gpio_probe(client);
if (client->irq >= 0) {
if (client->irq > 0) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
mma9553_irq_handler,
mma9553_event_handler,
drivers/iio/accel/st_accel.h
+1
View File
@@ -26,6 +26,7 @@
#define LSM303DLH_ACCEL_DEV_NAME "lsm303dlh_accel"
#define LSM303DLM_ACCEL_DEV_NAME "lsm303dlm_accel"
#define LSM330_ACCEL_DEV_NAME "lsm330_accel"
#define LSM303AGR_ACCEL_DEV_NAME "lsm303agr_accel"
/**
* struct st_sensors_platform_data - default accel platform data
drivers/iio/accel/st_accel_core.c
+6
View File
@@ -226,12 +226,14 @@ static const struct iio_chan_spec st_accel_16bit_channels[] = {
static const struct st_sensor_settings st_accel_sensors_settings[] = {
{
.wai = ST_ACCEL_1_WAI_EXP,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3DH_ACCEL_DEV_NAME,
[1] = LSM303DLHC_ACCEL_DEV_NAME,
[2] = LSM330D_ACCEL_DEV_NAME,
[3] = LSM330DL_ACCEL_DEV_NAME,
[4] = LSM330DLC_ACCEL_DEV_NAME,
[5] = LSM303AGR_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
@@ -297,6 +299,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_2_WAI_EXP,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DLH_ACCEL_DEV_NAME,
[1] = LSM303DL_ACCEL_DEV_NAME,
@@ -359,6 +362,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_3_WAI_EXP,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LSM330_ACCEL_DEV_NAME,
},
@@ -437,6 +441,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_4_WAI_EXP,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS3LV02DL_ACCEL_DEV_NAME,
},
@@ -494,6 +499,7 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
},
{
.wai = ST_ACCEL_5_WAI_EXP,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS331DL_ACCEL_DEV_NAME,
},
drivers/iio/accel/st_accel_i2c.c
+5
View File
@@ -68,6 +68,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lsm330-accel",
.data = LSM330_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm303agr-accel",
.data = LSM303AGR_ACCEL_DEV_NAME,
},
{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -116,6 +120,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ LSM303DL_ACCEL_DEV_NAME },
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
drivers/iio/accel/st_accel_spi.c
+1
View File
@@ -57,6 +57,7 @@ static const struct spi_device_id st_accel_id_table[] = {
{ LSM303DL_ACCEL_DEV_NAME },
{ LSM303DLM_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_accel_id_table);
drivers/iio/accel/stk8312.c
+61 -46
View File
@@ -37,16 +37,16 @@
#define STK8312_REG_OTPDATA 0x3E
#define STK8312_REG_OTPCTRL 0x3F
#define STK8312_MODE_ACTIVE 0x01
#define STK8312_MODE_ACTIVE BIT(0)
#define STK8312_MODE_STANDBY 0x00
#define STK8312_DREADY_BIT 0x10
#define STK8312_INT_MODE 0xC0
#define STK8312_RNG_MASK 0xC0
#define STK8312_SR_MASK 0x07
#define STK8312_SR_400HZ_IDX 0
#define STK8312_MODE_INT_AH_PP 0xC0 /* active-high, push-pull */
#define STK8312_DREADY_BIT BIT(4)
#define STK8312_RNG_6G 1
#define STK8312_RNG_SHIFT 6
#define STK8312_READ_RETRIES 16
#define STK8312_ALL_CHANNEL_MASK 7
#define STK8312_RNG_MASK GENMASK(7, 6)
#define STK8312_SR_MASK GENMASK(2, 0)
#define STK8312_SR_400HZ_IDX 0
#define STK8312_ALL_CHANNEL_MASK GENMASK(2, 0)
#define STK8312_ALL_CHANNEL_SIZE 3
#define STK8312_DRIVER_NAME "stk8312"
@@ -69,8 +69,8 @@ static const int stk8312_scale_table[][2] = {
};
static const struct {
u16 val;
u32 val2;
int val;
int val2;
} stk8312_samp_freq_table[] = {
{400, 0}, {200, 0}, {100, 0}, {50, 0}, {25, 0},
{12, 500000}, {6, 250000}, {3, 125000}
@@ -103,7 +103,7 @@ static const struct iio_chan_spec stk8312_channels[] = {
struct stk8312_data {
struct i2c_client *client;
struct mutex lock;
int range;
u8 range;
u8 sample_rate_idx;
u8 mode;
struct iio_trigger *dready_trig;
@@ -144,22 +144,25 @@ static int stk8312_otp_init(struct stk8312_data *data)
if (ret < 0)
goto exit_err;
count--;
} while (!(ret & 0x80) && count > 0);
} while (!(ret & BIT(7)) && count > 0);
if (count == 0)
if (count == 0) {
ret = -ETIMEDOUT;
goto exit_err;
}
ret = i2c_smbus_read_byte_data(client, STK8312_REG_OTPDATA);
if (ret == 0)
ret = -EINVAL;
if (ret < 0)
goto exit_err;
ret = i2c_smbus_write_byte_data(data->client,
STK8312_REG_AFECTRL, ret);
ret = i2c_smbus_write_byte_data(data->client, STK8312_REG_AFECTRL, ret);
if (ret < 0)
goto exit_err;
msleep(150);
return ret;
return 0;
exit_err:
dev_err(&client->dev, "failed to initialize sensor\n");
@@ -203,8 +206,11 @@ static int stk8312_set_interrupts(struct stk8312_data *data, u8 int_mask)
return ret;
ret = i2c_smbus_write_byte_data(client, STK8312_REG_INTSU, int_mask);
if (ret < 0)
if (ret < 0) {
dev_err(&client->dev, "failed to set interrupts\n");
stk8312_set_mode(data, mode);
return ret;
}
return stk8312_set_mode(data, mode);
}
@@ -228,7 +234,7 @@ static int stk8312_data_rdy_trigger_set_state(struct iio_trigger *trig,
data->dready_trigger_on = state;
return ret;
return 0;
}
static const struct iio_trigger_ops stk8312_trigger_ops = {
@@ -236,7 +242,7 @@ static const struct iio_trigger_ops stk8312_trigger_ops = {
.owner = THIS_MODULE,
};
static int stk8312_set_sample_rate(struct stk8312_data *data, int rate)
static int stk8312_set_sample_rate(struct stk8312_data *data, u8 rate)
{
int ret;
u8 masked_reg;
@@ -253,20 +259,24 @@ static int stk8312_set_sample_rate(struct stk8312_data *data, int rate)
return ret;
ret = i2c_smbus_read_byte_data(client, STK8312_REG_SR);
if (ret < 0) {
dev_err(&client->dev, "failed to set sampling rate\n");
return ret;
}
if (ret < 0)
goto err_activate;
masked_reg = (ret & (~STK8312_SR_MASK)) | rate;
ret = i2c_smbus_write_byte_data(client, STK8312_REG_SR, masked_reg);
if (ret < 0)
dev_err(&client->dev, "failed to set sampling rate\n");
else
data->sample_rate_idx = rate;
goto err_activate;
data->sample_rate_idx = rate;
return stk8312_set_mode(data, mode);
err_activate:
dev_err(&client->dev, "failed to set sampling rate\n");
stk8312_set_mode(data, mode);
return ret;
}
static int stk8312_set_range(struct stk8312_data *data, u8 range)
@@ -288,21 +298,25 @@ static int stk8312_set_range(struct stk8312_data *data, u8 range)
return ret;
ret = i2c_smbus_read_byte_data(client, STK8312_REG_STH);
if (ret < 0) {
dev_err(&client->dev, "failed to change sensor range\n");
return ret;
}
if (ret < 0)
goto err_activate;
masked_reg = ret & (~STK8312_RNG_MASK);
masked_reg |= range << STK8312_RNG_SHIFT;
ret = i2c_smbus_write_byte_data(client, STK8312_REG_STH, masked_reg);
if (ret < 0)
dev_err(&client->dev, "failed to change sensor range\n");
else
data->range = range;
goto err_activate;
data->range = range;
return stk8312_set_mode(data, mode);
err_activate:
dev_err(&client->dev, "failed to change sensor range\n");
stk8312_set_mode(data, mode);
return ret;
}
static int stk8312_read_accel(struct stk8312_data *data, u8 address)
@@ -335,18 +349,21 @@ static int stk8312_read_raw(struct iio_dev *indio_dev,
ret = stk8312_set_mode(data, data->mode | STK8312_MODE_ACTIVE);
if (ret < 0) {
mutex_unlock(&data->lock);
return -EINVAL;
return ret;
}
ret = stk8312_read_accel(data, chan->address);
if (ret < 0) {
stk8312_set_mode(data,
data->mode & (~STK8312_MODE_ACTIVE));
mutex_unlock(&data->lock);
return -EINVAL;
return ret;
}
*val = sign_extend32(ret, 7);
stk8312_set_mode(data, data->mode & (~STK8312_MODE_ACTIVE));
ret = stk8312_set_mode(data,
data->mode & (~STK8312_MODE_ACTIVE));
mutex_unlock(&data->lock);
if (ret < 0)
return ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
*val = stk8312_scale_table[data->range - 1][0];
@@ -418,7 +435,6 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
struct iio_dev *indio_dev = pf->indio_dev;
struct stk8312_data *data = iio_priv(indio_dev);
int bit, ret, i = 0;
u8 buffer[STK8312_ALL_CHANNEL_SIZE];
mutex_lock(&data->lock);
/*
@@ -429,18 +445,15 @@ static irqreturn_t stk8312_trigger_handler(int irq, void *p)
ret = i2c_smbus_read_i2c_block_data(data->client,
STK8312_REG_XOUT,
STK8312_ALL_CHANNEL_SIZE,
buffer);
data->buffer);
if (ret < STK8312_ALL_CHANNEL_SIZE) {
dev_err(&data->client->dev, "register read failed\n");
mutex_unlock(&data->lock);
goto err;
}
data->buffer[0] = buffer[0];
data->buffer[1] = buffer[1];
data->buffer[2] = buffer[2];
} else {
for_each_set_bit(bit, indio_dev->active_scan_mask,
indio_dev->masklength) {
indio_dev->masklength) {
ret = stk8312_read_accel(data, bit);
if (ret < 0) {
mutex_unlock(&data->lock);
@@ -547,11 +560,12 @@ static int stk8312_probe(struct i2c_client *client,
return ret;
}
data->sample_rate_idx = STK8312_SR_400HZ_IDX;
ret = stk8312_set_range(data, 1);
ret = stk8312_set_range(data, STK8312_RNG_6G);
if (ret < 0)
return ret;
ret = stk8312_set_mode(data, STK8312_INT_MODE | STK8312_MODE_ACTIVE);
ret = stk8312_set_mode(data,
STK8312_MODE_INT_AH_PP | STK8312_MODE_ACTIVE);
if (ret < 0)
return ret;
@@ -606,7 +620,7 @@ static int stk8312_probe(struct i2c_client *client,
goto err_buffer_cleanup;
}
return ret;
return 0;
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
@@ -662,6 +676,7 @@ static const struct i2c_device_id stk8312_i2c_id[] = {
{"STK8312", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, stk8312_i2c_id);
static const struct acpi_device_id stk8312_acpi_id[] = {
{"STK8312", 0},
@@ -672,7 +687,7 @@ MODULE_DEVICE_TABLE(acpi, stk8312_acpi_id);
static struct i2c_driver stk8312_driver = {
.driver = {
.name = "stk8312",
.name = STK8312_DRIVER_NAME,
.pm = STK8312_PM_OPS,
.acpi_match_table = ACPI_PTR(stk8312_acpi_id),
},
drivers/iio/accel/stk8ba50.c
+1
View File
@@ -572,6 +572,7 @@ static const struct i2c_device_id stk8ba50_i2c_id[] = {
{"stk8ba50", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, stk8ba50_i2c_id);
static const struct acpi_device_id stk8ba50_acpi_id[] = {
{"STK8BA50", 0},

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