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iio: accel: add support to LIS2DW12 

add support to STMicroelectronics LIS2DW12 accelerometer in
st_accel framework

http://www.st.com/resource/en/datasheet/lis2dw12.pdf

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lorenzo Bianconi 2017-08-30 13:50:42 +02:00 committed by Jonathan Cameron
parent 2e8325f489
commit f94124f9fb
4 changed files with 91 additions and 0 deletions
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2
drivers/iio/accel/st_accel.h
View File

@ -32,6 +32,7 @@ enum st_accel_type {
H3LIS331DL,
LIS331DL,
LIS3LV02DL,
LIS2DW12,
ST_ACCEL_MAX,
};
@ -52,6 +53,7 @@ enum st_accel_type {
#define LIS2DH12_ACCEL_DEV_NAME "lis2dh12_accel"
#define LIS3L02DQ_ACCEL_DEV_NAME "lis3l02dq"
#define LNG2DM_ACCEL_DEV_NAME "lng2dm"
#define LIS2DW12_ACCEL_DEV_NAME "lis2dw12"
/**
* struct st_sensors_platform_data - default accel platform data

79
drivers/iio/accel/st_accel_core.c
View File

@ -692,6 +692,85 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.multi_read_bit = true,
.bootime = 2,
},
{
.wai = 0x44,
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
.sensors_supported = {
[0] = LIS2DW12_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
.odr = {
.addr = 0x20,
.mask = 0xf0,
.odr_avl = {
{ .hz = 1, .value = 0x01, },
{ .hz = 12, .value = 0x02, },
{ .hz = 25, .value = 0x03, },
{ .hz = 50, .value = 0x04, },
{ .hz = 100, .value = 0x05, },
{ .hz = 200, .value = 0x06, },
},
},
.pw = {
.addr = 0x20,
.mask = 0xf0,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.fs = {
.addr = 0x25,
.mask = 0x30,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
.value = 0x00,
.gain = IIO_G_TO_M_S_2(976),
},
[1] = {
.num = ST_ACCEL_FS_AVL_4G,
.value = 0x01,
.gain = IIO_G_TO_M_S_2(1952),
},
[2] = {
.num = ST_ACCEL_FS_AVL_8G,
.value = 0x02,
.gain = IIO_G_TO_M_S_2(3904),
},
[3] = {
.num = ST_ACCEL_FS_AVL_16G,
.value = 0x03,
.gain = IIO_G_TO_M_S_2(7808),
},
},
},
.bdu = {
.addr = 0x21,
.mask = 0x08,
},
.drdy_irq = {
.int1 = {
.addr = 0x23,
.mask = 0x01,
},
.int2 = {
.addr = 0x24,
.mask = 0x01,
},
.addr_ihl = 0x22,
.mask_ihl = 0x08,
.addr_od = 0x22,
.mask_od = 0x20,
.stat_drdy = {
.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
.mask = 0x01,
},
},
.sim = {
.addr = 0x21,
.value = BIT(0),
},
.multi_read_bit = false,
.bootime = 2,
},
};
static int st_accel_read_raw(struct iio_dev *indio_dev,

5
drivers/iio/accel/st_accel_i2c.c
View File

@ -94,6 +94,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lng2dm-accel",
.data = LNG2DM_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis2dw12",
.data = LIS2DW12_ACCEL_DEV_NAME,
},
{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@ -129,6 +133,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
{ LIS331DL_ACCEL_DEV_NAME, LIS331DL },
{ LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
{ LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);

5
drivers/iio/accel/st_accel_spi.c
View File

@ -82,6 +82,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lis331dl-accel",
.data = LIS331DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis2dw12",
.data = LIS2DW12_ACCEL_DEV_NAME,
},
{}
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@ -133,6 +137,7 @@ static const struct spi_device_id st_accel_id_table[] = {
{ H3LIS331DL_ACCEL_DEV_NAME },
{ LIS331DL_ACCEL_DEV_NAME },
{ LIS3LV02DL_ACCEL_DEV_NAME },
{ LIS2DW12_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_accel_id_table);