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-rw-r--r--drivers/iio/pressure/Kconfig14
-rw-r--r--drivers/iio/pressure/Makefile1
-rw-r--r--drivers/iio/pressure/st_pressure.h11
-rw-r--r--drivers/iio/pressure/st_pressure_core.c21
-rw-r--r--drivers/iio/pressure/st_pressure_i2c.c17
-rw-r--r--drivers/iio/pressure/st_pressure_spi.c17
6 files changed, 44 insertions, 37 deletions
diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index 9427f01e1499..26fdc0bdb99d 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -1,21 +1,23 @@
#
# Pressure drivers
#
-menu "Pressure Sensors"
+# When adding new entries keep the list in alphabetical order
+
+menu "Pressure sensors"
config IIO_ST_PRESS
- tristate "STMicroelectronics pressures Driver"
+ tristate "STMicroelectronics pressure sensor Driver"
depends on (I2C || SPI_MASTER) && SYSFS
select IIO_ST_SENSORS_CORE
select IIO_ST_PRESS_I2C if (I2C)
select IIO_ST_PRESS_SPI if (SPI_MASTER)
select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
help
- Say yes here to build support for STMicroelectronics pressures:
- LPS331AP.
+ Say yes here to build support for STMicroelectronics pressure
+ sensors: LPS331AP.
- This driver can also be built as a module. If so, will be created
- these modules:
+ This driver can also be built as a module. If so, these modules
+ will be created:
- st_pressure (core functions for the driver [it is mandatory]);
- st_pressure_i2c (necessary for the I2C devices [optional*]);
- st_pressure_spi (necessary for the SPI devices [optional*]);
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
index d4bb33e5c846..be71464c2752 100644
--- a/drivers/iio/pressure/Makefile
+++ b/drivers/iio/pressure/Makefile
@@ -2,6 +2,7 @@
# Makefile for industrial I/O pressure drivers
#
+# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_IIO_ST_PRESS) += st_pressure.o
st_pressure-y := st_pressure_core.o
st_pressure-$(CONFIG_IIO_BUFFER) += st_pressure_buffer.o
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 414e45ac9b9b..b0b630688da6 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -16,7 +16,16 @@
#define LPS331AP_PRESS_DEV_NAME "lps331ap"
-int st_press_common_probe(struct iio_dev *indio_dev);
+/**
+ * struct st_sensors_platform_data - default press platform data
+ * @drdy_int_pin: default press DRDY is available on INT1 pin.
+ */
+static const struct st_sensors_platform_data default_press_pdata = {
+ .drdy_int_pin = 1,
+};
+
+int st_press_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *pdata);
void st_press_common_remove(struct iio_dev *indio_dev);
#ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 3ffbc56917b4..ceebd3c27892 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -31,6 +31,9 @@
#define ST_PRESS_LSB_PER_MBAR 4096UL
#define ST_PRESS_KPASCAL_NANO_SCALE (100000000UL / \
ST_PRESS_LSB_PER_MBAR)
+#define ST_PRESS_LSB_PER_CELSIUS 480UL
+#define ST_PRESS_CELSIUS_NANO_SCALE (1000000000UL / \
+ ST_PRESS_LSB_PER_CELSIUS)
#define ST_PRESS_NUMBER_DATA_CHANNELS 1
/* DEFAULT VALUE FOR SENSORS */
@@ -53,12 +56,13 @@
#define ST_PRESS_1_FS_ADDR 0x23
#define ST_PRESS_1_FS_MASK 0x30
#define ST_PRESS_1_FS_AVL_1260_VAL 0x00
-#define ST_PRESS_1_FS_AVL_TEMP_GAIN 2083000
#define ST_PRESS_1_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE
+#define ST_PRESS_1_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE
#define ST_PRESS_1_BDU_ADDR 0x20
#define ST_PRESS_1_BDU_MASK 0x04
#define ST_PRESS_1_DRDY_IRQ_ADDR 0x22
-#define ST_PRESS_1_DRDY_IRQ_MASK 0x04
+#define ST_PRESS_1_DRDY_IRQ_INT1_MASK 0x04
+#define ST_PRESS_1_DRDY_IRQ_INT2_MASK 0x20
#define ST_PRESS_1_MULTIREAD_BIT true
#define ST_PRESS_1_TEMP_OFFSET 42500
@@ -116,7 +120,8 @@ static const struct st_sensors st_press_sensors[] = {
},
.drdy_irq = {
.addr = ST_PRESS_1_DRDY_IRQ_ADDR,
- .mask = ST_PRESS_1_DRDY_IRQ_MASK,
+ .mask_int1 = ST_PRESS_1_DRDY_IRQ_INT1_MASK,
+ .mask_int2 = ST_PRESS_1_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
.bootime = 2,
@@ -202,7 +207,8 @@ static const struct iio_trigger_ops st_press_trigger_ops = {
#define ST_PRESS_TRIGGER_OPS NULL
#endif
-int st_press_common_probe(struct iio_dev *indio_dev)
+int st_press_common_probe(struct iio_dev *indio_dev,
+ struct st_sensors_platform_data *plat_data)
{
int err;
struct st_sensor_data *pdata = iio_priv(indio_dev);
@@ -224,7 +230,11 @@ int st_press_common_probe(struct iio_dev *indio_dev)
&pdata->sensor->fs.fs_avl[0];
pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
- err = st_sensors_init_sensor(indio_dev);
+ if (!plat_data)
+ plat_data =
+ (struct st_sensors_platform_data *)&default_press_pdata;
+
+ err = st_sensors_init_sensor(indio_dev, plat_data);
if (err < 0)
goto st_press_common_probe_error;
@@ -265,7 +275,6 @@ void st_press_common_remove(struct iio_dev *indio_dev)
st_sensors_deallocate_trigger(indio_dev);
st_press_deallocate_ring(indio_dev);
}
- iio_device_free(indio_dev);
}
EXPORT_SYMBOL(st_press_common_remove);
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 7cebcc73bfb0..08aac5e6251d 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -25,27 +25,20 @@ static int st_press_i2c_probe(struct i2c_client *client,
struct st_sensor_data *pdata;
int err;
- indio_dev = iio_device_alloc(sizeof(*pdata));
- if (indio_dev == NULL) {
- err = -ENOMEM;
- goto iio_device_alloc_error;
- }
+ indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*pdata));
+ if (!indio_dev)
+ return -ENOMEM;
pdata = iio_priv(indio_dev);
pdata->dev = &client->dev;
st_sensors_i2c_configure(indio_dev, client, pdata);
- err = st_press_common_probe(indio_dev);
+ err = st_press_common_probe(indio_dev, client->dev.platform_data);
if (err < 0)
- goto st_press_common_probe_error;
+ return err;
return 0;
-
-st_press_common_probe_error:
- iio_device_free(indio_dev);
-iio_device_alloc_error:
- return err;
}
static int st_press_i2c_remove(struct i2c_client *client)
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index 17a14907940a..399a29b6017b 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -24,27 +24,20 @@ static int st_press_spi_probe(struct spi_device *spi)
struct st_sensor_data *pdata;
int err;
- indio_dev = iio_device_alloc(sizeof(*pdata));
- if (indio_dev == NULL) {
- err = -ENOMEM;
- goto iio_device_alloc_error;
- }
+ indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*pdata));
+ if (indio_dev == NULL)
+ return -ENOMEM;
pdata = iio_priv(indio_dev);
pdata->dev = &spi->dev;
st_sensors_spi_configure(indio_dev, spi, pdata);
- err = st_press_common_probe(indio_dev);
+ err = st_press_common_probe(indio_dev, spi->dev.platform_data);
if (err < 0)
- goto st_press_common_probe_error;
+ return err;
return 0;
-
-st_press_common_probe_error:
- iio_device_free(indio_dev);
-iio_device_alloc_error:
- return err;
}
static int st_press_spi_remove(struct spi_device *spi)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.