Commit bbf5f037 authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron
Browse files

iio: st_accel: support the LIS331DL sensor



This adds support for the LIS331DL sensor version. This is
a simple 8bit-only accelerometer.
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Acked-by: default avatarDenis Ciocca <denis.ciocca@st.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 4861a007
......@@ -30,6 +30,7 @@ Accelerometers:
- st,lsm330d-accel
- st,lsm330dl-accel
- st,lsm330dlc-accel
- st,lis331dl-accel
- st,lis331dlh-accel
- st,lsm303dl-accel
- st,lsm303dlm-accel
......
......@@ -20,6 +20,7 @@
#define LSM330D_ACCEL_DEV_NAME "lsm330d_accel"
#define LSM330DL_ACCEL_DEV_NAME "lsm330dl_accel"
#define LSM330DLC_ACCEL_DEV_NAME "lsm330dlc_accel"
#define LIS331DL_ACCEL_DEV_NAME "lis331dl_accel"
#define LIS331DLH_ACCEL_DEV_NAME "lis331dlh"
#define LSM303DL_ACCEL_DEV_NAME "lsm303dl_accel"
#define LSM303DLH_ACCEL_DEV_NAME "lsm303dlh_accel"
......
......@@ -153,6 +153,28 @@
#define ST_ACCEL_4_IG1_EN_MASK 0x08
#define ST_ACCEL_4_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 5 */
#define ST_ACCEL_5_WAI_EXP 0x3b
#define ST_ACCEL_5_ODR_ADDR 0x20
#define ST_ACCEL_5_ODR_MASK 0x80
#define ST_ACCEL_5_ODR_AVL_100HZ_VAL 0x00
#define ST_ACCEL_5_ODR_AVL_400HZ_VAL 0x01
#define ST_ACCEL_5_PW_ADDR 0x20
#define ST_ACCEL_5_PW_MASK 0x40
#define ST_ACCEL_5_FS_ADDR 0x20
#define ST_ACCEL_5_FS_MASK 0x20
#define ST_ACCEL_5_FS_AVL_2_VAL 0X00
#define ST_ACCEL_5_FS_AVL_8_VAL 0X01
/* TODO: check these resulting gain settings, these are not in the datsheet */
#define ST_ACCEL_5_FS_AVL_2_GAIN IIO_G_TO_M_S_2(18000)
#define ST_ACCEL_5_FS_AVL_8_GAIN IIO_G_TO_M_S_2(72000)
#define ST_ACCEL_5_DRDY_IRQ_ADDR 0x22
#define ST_ACCEL_5_DRDY_IRQ_INT1_MASK 0x04
#define ST_ACCEL_5_DRDY_IRQ_INT2_MASK 0x20
#define ST_ACCEL_5_IG1_EN_ADDR 0x21
#define ST_ACCEL_5_IG1_EN_MASK 0x08
#define ST_ACCEL_5_MULTIREAD_BIT false
static const struct iio_chan_spec st_accel_8bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
......@@ -470,6 +492,54 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT,
.bootime = 2, /* guess */
},
{
.wai = ST_ACCEL_5_WAI_EXP,
.sensors_supported = {
[0] = LIS331DL_ACCEL_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_accel_8bit_channels,
.odr = {
.addr = ST_ACCEL_5_ODR_ADDR,
.mask = ST_ACCEL_5_ODR_MASK,
.odr_avl = {
{ 100, ST_ACCEL_5_ODR_AVL_100HZ_VAL },
{ 400, ST_ACCEL_5_ODR_AVL_400HZ_VAL, },
},
},
.pw = {
.addr = ST_ACCEL_5_PW_ADDR,
.mask = ST_ACCEL_5_PW_MASK,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.enable_axis = {
.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
.addr = ST_ACCEL_5_FS_ADDR,
.mask = ST_ACCEL_5_FS_MASK,
.fs_avl = {
[0] = {
.num = ST_ACCEL_FS_AVL_2G,
.value = ST_ACCEL_5_FS_AVL_2_VAL,
.gain = ST_ACCEL_5_FS_AVL_2_GAIN,
},
[1] = {
.num = ST_ACCEL_FS_AVL_8G,
.value = ST_ACCEL_5_FS_AVL_8_VAL,
.gain = ST_ACCEL_5_FS_AVL_8_GAIN,
},
},
},
.drdy_irq = {
.addr = ST_ACCEL_5_DRDY_IRQ_ADDR,
.mask_int1 = ST_ACCEL_5_DRDY_IRQ_INT1_MASK,
.mask_int2 = ST_ACCEL_5_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_ACCEL_5_MULTIREAD_BIT,
.bootime = 2, /* guess */
},
};
static int st_accel_read_raw(struct iio_dev *indio_dev,
......
......@@ -48,6 +48,10 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lsm330dlc-accel",
.data = LSM330DLC_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis331dl-accel",
.data = LIS331DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis331dlh-accel",
.data = LIS331DLH_ACCEL_DEV_NAME,
......
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