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-rw-r--r--drivers/iio/accel/Kconfig5
-rw-r--r--drivers/iio/accel/bmc150-accel-core.c9
-rw-r--r--drivers/iio/accel/bmc150-accel-i2c.c10
-rw-r--r--drivers/iio/accel/bmc150-accel-spi.c10
-rw-r--r--drivers/iio/accel/bmc150-accel.h20
5 files changed, 45 insertions, 9 deletions
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 0e56ace61103..2f0c0d512ae7 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -143,10 +143,11 @@ config BMC150_ACCEL
select BMC150_ACCEL_SPI if SPI
help
Say yes here to build support for the following Bosch accelerometers:
- BMA222, BMA222E, BMA250E, BMA253, BMA254, BMA255, BMA280, BMC150, BMI055.
+ BMA222, BMA222E, BMA250E, BMA253, BMA254, BMA255, BMA280, BMC150, BMC156
+ BMI055.
Note that some of these are combo modules:
- - BMC150: accelerometer and magnetometer
+ - BMC150/BMC156: accelerometer and magnetometer
- BMI055: accelerometer and gyroscope
This driver is only implementing accelerometer part, which has
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 8d3dd3c2bcc2..e8693a42ad46 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -553,7 +553,8 @@ static void bmc150_accel_interrupts_setup(struct iio_dev *indio_dev,
* Without interrupt-names, we assume the irq belongs to INT1.
*/
irq_info = bmc150_accel_interrupts_int1;
- if (irq == of_irq_get_byname(dev->of_node, "INT2"))
+ if (data->type == BOSCH_BMC156 ||
+ irq == of_irq_get_byname(dev->of_node, "INT2"))
irq_info = bmc150_accel_interrupts_int2;
for (i = 0; i < BMC150_ACCEL_INTERRUPTS; i++)
@@ -1174,7 +1175,7 @@ static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
{306458, BMC150_ACCEL_DEF_RANGE_16G} },
},
{
- .name = "BMA253/BMA254/BMA255/BMC150/BMI055",
+ .name = "BMA253/BMA254/BMA255/BMC150/BMC156/BMI055",
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
@@ -1661,7 +1662,8 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
}
int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
- const char *name, bool block_supported)
+ enum bmc150_type type, const char *name,
+ bool block_supported)
{
const struct attribute **fifo_attrs;
struct bmc150_accel_data *data;
@@ -1676,6 +1678,7 @@ int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
dev_set_drvdata(dev, indio_dev);
data->regmap = regmap;
+ data->type = type;
if (!bmc150_apply_acpi_orientation(dev, &data->orientation)) {
ret = iio_read_mount_matrix(dev, &data->orientation);
diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c
index 999495f0669d..88bd8a25f142 100644
--- a/drivers/iio/accel/bmc150-accel-i2c.c
+++ b/drivers/iio/accel/bmc150-accel-i2c.c
@@ -176,6 +176,7 @@ static int bmc150_accel_probe(struct i2c_client *client,
{
struct regmap *regmap;
const char *name = NULL;
+ enum bmc150_type type = BOSCH_UNKNOWN;
bool block_supported =
i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
i2c_check_functionality(client->adapter,
@@ -188,10 +189,13 @@ static int bmc150_accel_probe(struct i2c_client *client,
return PTR_ERR(regmap);
}
- if (id)
+ if (id) {
name = id->name;
+ type = id->driver_data;
+ }
- ret = bmc150_accel_core_probe(&client->dev, regmap, client->irq, name, block_supported);
+ ret = bmc150_accel_core_probe(&client->dev, regmap, client->irq,
+ type, name, block_supported);
if (ret)
return ret;
@@ -236,6 +240,7 @@ static const struct i2c_device_id bmc150_accel_id[] = {
{"bma255"},
{"bma280"},
{"bmc150_accel"},
+ {"bmc156_accel", BOSCH_BMC156},
{"bmi055_accel"},
{}
};
@@ -251,6 +256,7 @@ static const struct of_device_id bmc150_accel_of_match[] = {
{ .compatible = "bosch,bma255" },
{ .compatible = "bosch,bma280" },
{ .compatible = "bosch,bmc150_accel" },
+ { .compatible = "bosch,bmc156_accel" },
{ .compatible = "bosch,bmi055_accel" },
{ },
};
diff --git a/drivers/iio/accel/bmc150-accel-spi.c b/drivers/iio/accel/bmc150-accel-spi.c
index 54b8c9c8068b..191e312dc91a 100644
--- a/drivers/iio/accel/bmc150-accel-spi.c
+++ b/drivers/iio/accel/bmc150-accel-spi.c
@@ -16,6 +16,8 @@
static int bmc150_accel_probe(struct spi_device *spi)
{
struct regmap *regmap;
+ const char *name = NULL;
+ enum bmc150_type type = BOSCH_UNKNOWN;
const struct spi_device_id *id = spi_get_device_id(spi);
regmap = devm_regmap_init_spi(spi, &bmc150_regmap_conf);
@@ -24,7 +26,12 @@ static int bmc150_accel_probe(struct spi_device *spi)
return PTR_ERR(regmap);
}
- return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, id->name,
+ if (id) {
+ name = id->name;
+ type = id->driver_data;
+ }
+
+ return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, type, name,
true);
}
@@ -54,6 +61,7 @@ static const struct spi_device_id bmc150_accel_id[] = {
{"bma255"},
{"bma280"},
{"bmc150_accel"},
+ {"bmc156_accel", BOSCH_BMC156},
{"bmi055_accel"},
{}
};
diff --git a/drivers/iio/accel/bmc150-accel.h b/drivers/iio/accel/bmc150-accel.h
index 47121f070fe9..1bb5023e8ed9 100644
--- a/drivers/iio/accel/bmc150-accel.h
+++ b/drivers/iio/accel/bmc150-accel.h
@@ -13,6 +13,22 @@ struct i2c_client;
struct bmc150_accel_chip_info;
struct bmc150_accel_interrupt_info;
+/*
+ * We can often guess better than "UNKNOWN" based on the device IDs
+ * but unfortunately this information is not always accurate. There are some
+ * devices where ACPI firmware specifies an ID like "BMA250E" when the device
+ * actually has a BMA222E. The driver attempts to detect those by reading the
+ * chip ID from the registers but this information is not always enough either.
+ *
+ * Therefore, this enum should be only used when the chip ID detection is not
+ * enough and we can be reasonably sure that the device IDs are reliable
+ * in practice (e.g. for device tree platforms).
+ */
+enum bmc150_type {
+ BOSCH_UNKNOWN,
+ BOSCH_BMC156,
+};
+
struct bmc150_accel_interrupt {
const struct bmc150_accel_interrupt_info *info;
atomic_t users;
@@ -62,6 +78,7 @@ struct bmc150_accel_data {
int ev_enable_state;
int64_t timestamp, old_timestamp; /* Only used in hw fifo mode. */
const struct bmc150_accel_chip_info *chip_info;
+ enum bmc150_type type;
struct i2c_client *second_device;
void (*resume_callback)(struct device *dev);
struct delayed_work resume_work;
@@ -69,7 +86,8 @@ struct bmc150_accel_data {
};
int bmc150_accel_core_probe(struct device *dev, struct regmap *regmap, int irq,
- const char *name, bool block_supported);
+ enum bmc150_type type, const char *name,
+ bool block_supported);
int bmc150_accel_core_remove(struct device *dev);
extern const struct dev_pm_ops bmc150_accel_pm_ops;
extern const struct regmap_config bmc150_regmap_conf;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.