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Commit 6fe588e5 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Jonathan Cameron
Browse files

iio: hid-sensors: Inclinometer 3D: Raw read support 



Added support for raw reading of channel. If the sensor is powered
off, it will turn on for reading value.

Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 8009c594

drivers/iio/orientation/hid-sensor-incl-3d.c

+13 −0
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ 
#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/slab.h>

#include <linux/delay.h>

#include <linux/hid-sensor-hub.h>

#include <linux/iio/iio.h>

#include <linux/iio/sysfs.h>
@@ -110,11 +111,20 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev, 
	int report_id = -1;

	u32 address;

	int ret_type;

	s32 poll_value;



	*val = 0;

	*val2 = 0;

	switch (mask) {

	case IIO_CHAN_INFO_RAW:

		poll_value = hid_sensor_read_poll_value(

					&incl_state->common_attributes);

		if (poll_value < 0)

			return -EINVAL;



		hid_sensor_power_state(&incl_state->common_attributes, true);

		msleep_interruptible(poll_value * 2);



		report_id =

			incl_state->incl[chan->scan_index].report_id;

		address = incl_3d_addresses[chan->scan_index];
@@ -124,8 +134,11 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev, 
				HID_USAGE_SENSOR_INCLINOMETER_3D, address,

				report_id);

		else {

			hid_sensor_power_state(&incl_state->common_attributes,

						false);

			return -EINVAL;

		}

		hid_sensor_power_state(&incl_state->common_attributes, false);

		ret_type = IIO_VAL_INT;

		break;

	case IIO_CHAN_INFO_SCALE: