diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2017-05-16 15:51:58 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-05-21 17:06:16 +0300 |
| commit | f1320b09517bceb261fed887fe261d6cbab2094e (patch) | |
| tree | 11113f9d6adfcc552f0fde8891367ef85b1e4060 /drivers/iio/accel | |
| parent | 9ece370b02f912bedff217b53f6f8cfbef0e93eb (diff) | |
| download | linux-f1320b09517bceb261fed887fe261d6cbab2094e.tar.xz | |
iio: accel: bma180: Add support for BMA250E
The BMA250E adds a new fifo mode and is fully backwards compatible
with the BMA250, but with a different chip-id.
This commit adds support for it by adjusting the chip-id check and
otherwise treating it as a regular BMA250.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/accel')
| -rw-r--r-- | drivers/iio/accel/bma180.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index efc67739c28f..3d6694821a96 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -36,6 +36,7 @@ enum chip_ids { BMA180, BMA250, + BMA250E, }; struct bma180_data; @@ -55,6 +56,7 @@ struct bma180_part_info { u8 power_reg, power_mask, lowpower_val; u8 int_enable_reg, int_enable_mask; u8 softreset_reg; + u8 chip_id; int (*chip_config)(struct bma180_data *data); void (*chip_disable)(struct bma180_data *data); @@ -112,6 +114,8 @@ struct bma180_part_info { #define BMA250_INT1_DATA_MASK BIT(0) #define BMA250_INT_RESET_MASK BIT(7) /* Reset pending interrupts */ +#define BMA250E_CHIP_ID 0xf9 + struct bma180_data { struct i2c_client *client; struct iio_trigger *trig; @@ -309,7 +313,7 @@ static int bma180_chip_init(struct bma180_data *data) if (ret < 0) return ret; - if (ret != BMA180_ID_REG_VAL) + if (ret != data->part_info->chip_id) return -ENODEV; ret = bma180_soft_reset(data); @@ -632,6 +636,7 @@ static const struct bma180_part_info bma180_part_info[] = { BMA180_TCO_Z, BMA180_MODE_CONFIG, BMA180_LOW_POWER, BMA180_CTRL_REG3, BMA180_NEW_DATA_INT, BMA180_RESET, + BMA180_CHIP_ID, bma180_chip_config, bma180_chip_disable, }, @@ -646,6 +651,22 @@ static const struct bma180_part_info bma180_part_info[] = { BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1, BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK, BMA250_RESET_REG, + BMA180_CHIP_ID, + bma250_chip_config, + bma250_chip_disable, + }, + [BMA250E] = { + bma250_channels, ARRAY_SIZE(bma250_channels), + bma250_scale_table, ARRAY_SIZE(bma250_scale_table), + bma250_bw_table, ARRAY_SIZE(bma250_bw_table), + BMA250_INT_RESET_REG, BMA250_INT_RESET_MASK, + BMA250_POWER_REG, BMA250_SUSPEND_MASK, + BMA250_BW_REG, BMA250_BW_MASK, + BMA250_RANGE_REG, BMA250_RANGE_MASK, + BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1, + BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK, + BMA250_RESET_REG, + BMA250E_CHIP_ID, bma250_chip_config, bma250_chip_disable, }, @@ -845,6 +866,7 @@ static SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume); static struct i2c_device_id bma180_ids[] = { { "bma180", BMA180 }, { "bma250", BMA250 }, + { "bma250e", BMA250E }, { } }; |