From 3acddf74f807778f0593ab4aaf26189c93e55ff1 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 18 Mar 2015 10:52:06 +0100 Subject: [PATCH] iio: st-sensors: add support for lis3lv02d accelerometer This adds support for the LIS3LV02 accelerometer found in the ST Microelectronics Nomadik board series. Cc: devicetree@vger.kernel.org Cc: Denis CIOCCA Acked-by: Lee Jones Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/st-sensors.txt | 1 + drivers/iio/accel/st_accel.h | 1 + drivers/iio/accel/st_accel_core.c | 81 +++++++++++++++++++ drivers/iio/accel/st_accel_i2c.c | 4 + 4 files changed, 87 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index a7a0a15913ad..d2aaca974531 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -23,6 +23,7 @@ standard bindings from pinctrl/pinctrl-bindings.txt. Valid compatible strings: Accelerometers: +- st,lis3lv02dl-accel - st,lsm303dlh-accel - st,lsm303dlhc-accel - st,lis3dh-accel diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h index fa9646034305..7ee9724b1428 100644 --- a/drivers/iio/accel/st_accel.h +++ b/drivers/iio/accel/st_accel.h @@ -14,6 +14,7 @@ #include #include +#define LIS3LV02DL_ACCEL_DEV_NAME "lis3lv02dl_accel" #define LSM303DLHC_ACCEL_DEV_NAME "lsm303dlhc_accel" #define LIS3DH_ACCEL_DEV_NAME "lis3dh" #define LSM330D_ACCEL_DEV_NAME "lsm330d_accel" diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 53f32629283a..58d1d13d552a 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -129,6 +129,30 @@ #define ST_ACCEL_3_IG1_EN_MASK 0x08 #define ST_ACCEL_3_MULTIREAD_BIT false +/* CUSTOM VALUES FOR SENSOR 4 */ +#define ST_ACCEL_4_WAI_EXP 0x3a +#define ST_ACCEL_4_ODR_ADDR 0x20 +#define ST_ACCEL_4_ODR_MASK 0x30 /* DF1 and DF0 */ +#define ST_ACCEL_4_ODR_AVL_40HZ_VAL 0x00 +#define ST_ACCEL_4_ODR_AVL_160HZ_VAL 0x01 +#define ST_ACCEL_4_ODR_AVL_640HZ_VAL 0x02 +#define ST_ACCEL_4_ODR_AVL_2560HZ_VAL 0x03 +#define ST_ACCEL_4_PW_ADDR 0x20 +#define ST_ACCEL_4_PW_MASK 0xc0 +#define ST_ACCEL_4_FS_ADDR 0x21 +#define ST_ACCEL_4_FS_MASK 0x80 +#define ST_ACCEL_4_FS_AVL_2_VAL 0X00 +#define ST_ACCEL_4_FS_AVL_6_VAL 0X01 +#define ST_ACCEL_4_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1024) +#define ST_ACCEL_4_FS_AVL_6_GAIN IIO_G_TO_M_S_2(340) +#define ST_ACCEL_4_BDU_ADDR 0x21 +#define ST_ACCEL_4_BDU_MASK 0x40 +#define ST_ACCEL_4_DRDY_IRQ_ADDR 0x21 +#define ST_ACCEL_4_DRDY_IRQ_INT1_MASK 0x04 +#define ST_ACCEL_4_IG1_EN_ADDR 0x21 +#define ST_ACCEL_4_IG1_EN_MASK 0x08 +#define ST_ACCEL_4_MULTIREAD_BIT true + static const struct iio_chan_spec st_accel_12bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_ACCEL, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), @@ -373,6 +397,63 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = { .multi_read_bit = ST_ACCEL_3_MULTIREAD_BIT, .bootime = 2, }, + { + .wai = ST_ACCEL_4_WAI_EXP, + .sensors_supported = { + [0] = LIS3LV02DL_ACCEL_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_accel_12bit_channels, + .odr = { + .addr = ST_ACCEL_4_ODR_ADDR, + .mask = ST_ACCEL_4_ODR_MASK, + .odr_avl = { + { 40, ST_ACCEL_4_ODR_AVL_40HZ_VAL }, + { 160, ST_ACCEL_4_ODR_AVL_160HZ_VAL, }, + { 640, ST_ACCEL_4_ODR_AVL_640HZ_VAL, }, + { 2560, ST_ACCEL_4_ODR_AVL_2560HZ_VAL, }, + }, + }, + .pw = { + .addr = ST_ACCEL_4_PW_ADDR, + .mask = ST_ACCEL_4_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_4_FS_ADDR, + .mask = ST_ACCEL_4_FS_MASK, + .fs_avl = { + [0] = { + .num = ST_ACCEL_FS_AVL_2G, + .value = ST_ACCEL_4_FS_AVL_2_VAL, + .gain = ST_ACCEL_4_FS_AVL_2_GAIN, + }, + [1] = { + .num = ST_ACCEL_FS_AVL_6G, + .value = ST_ACCEL_4_FS_AVL_6_VAL, + .gain = ST_ACCEL_4_FS_AVL_6_GAIN, + }, + }, + }, + .bdu = { + .addr = ST_ACCEL_4_BDU_ADDR, + .mask = ST_ACCEL_4_BDU_MASK, + }, + .drdy_irq = { + .addr = ST_ACCEL_4_DRDY_IRQ_ADDR, + .mask_int1 = ST_ACCEL_4_DRDY_IRQ_INT1_MASK, + .ig1 = { + .en_addr = ST_ACCEL_4_IG1_EN_ADDR, + .en_mask = ST_ACCEL_4_IG1_EN_MASK, + }, + }, + .multi_read_bit = ST_ACCEL_4_MULTIREAD_BIT, + .bootime = 2, /* guess */ + }, }; static int st_accel_read_raw(struct iio_dev *indio_dev, diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c index c7246bdd30b9..6b720c190b2d 100644 --- a/drivers/iio/accel/st_accel_i2c.c +++ b/drivers/iio/accel/st_accel_i2c.c @@ -20,6 +20,10 @@ #ifdef CONFIG_OF static const struct of_device_id st_accel_of_match[] = { + { + .compatible = "st,lis3lv02dl-accel", + .data = LIS3LV02DL_ACCEL_DEV_NAME, + }, { .compatible = "st,lsm303dlh-accel", .data = LSM303DLH_ACCEL_DEV_NAME, -- 2.20.1