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iio: Added ST-sensors platform data to select the DRDY interrupt pin

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This patch add support to redirect the DRDY interrupt on INT1 or INT2
on accelerometer and pressure sensors.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Denis CIOCCA 2013-06-19 09:28:00 +01:00 • committed by Jonathan Cameron
parent 36e607a16b
commit 23cde4d65c
19 changed files with 153 additions and 40 deletions
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14
include/linux/iio/common/st_sensors.h
View file

@ -17,6 +17,8 @@
#include <linux/iio/trigger.h>
#include <linux/bitops.h>
#include <linux/platform_data/st_sensors_pdata.h>
#define ST_SENSORS_TX_MAX_LENGTH 2
#define ST_SENSORS_RX_MAX_LENGTH 6
@ -118,14 +120,16 @@ struct st_sensor_bdu {
/**
* struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
* @addr: address of the register.
* @mask: mask to write the on/off value.
* @mask_int1: mask to enable/disable IRQ on INT1 pin.
* @mask_int2: mask to enable/disable IRQ on INT2 pin.
* struct ig1 - represents the Interrupt Generator 1 of sensors.
* @en_addr: address of the enable ig1 register.
* @en_mask: mask to write the on/off value for enable.
*/
struct st_sensor_data_ready_irq {
u8 addr;
u8 mask;
u8 mask_int1;
u8 mask_int2;
struct {
u8 en_addr;
u8 en_mask;
@ -201,6 +205,7 @@ struct st_sensors {
* @buffer_data: Data used by buffer part.
* @odr: Output data rate of the sensor [Hz].
* num_data_channels: Number of data channels used in buffer.
* @drdy_int_pin: Redirect DRDY on pin 1 (1) or pin 2 (2).
* @get_irq_data_ready: Function to get the IRQ used for data ready signal.
* @tf: Transfer function structure used by I/O operations.
* @tb: Transfer buffers and mutex used by I/O operations.
@ -219,6 +224,8 @@ struct st_sensor_data {
unsigned int odr;
unsigned int num_data_channels;
u8 drdy_int_pin;
unsigned int (*get_irq_data_ready) (struct iio_dev *indio_dev);
const struct st_sensor_transfer_function *tf;
@ -249,7 +256,8 @@ static inline void st_sensors_deallocate_trigger(struct iio_dev *indio_dev)
}
#endif
int st_sensors_init_sensor(struct iio_dev *indio_dev);
int st_sensors_init_sensor(struct iio_dev *indio_dev,
struct st_sensors_platform_data *pdata);
int st_sensors_set_enable(struct iio_dev *indio_dev, bool enable);