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Commit 90e65a4b authored by Bingzhe Cai's avatar Bingzhe Cai
Browse files

input: sensors: change BMA2x2 minimum and maximum polling rate 



Sensor minimum and maximum polling rates are limited by its
driver. This change updates these two values that allow the
sensor to run at range from 0.25Hz to 200Hz.

Change-Id: Iac7de3e41a1d51637a453c692fd6779fbf9128c3
Signed-off-by: default avatarBingzhe Cai <bingzhec@codeaurora.org>
parent 88ada96a

drivers/input/misc/bma2x2.c

+10 −11
Original line number Diff line number Diff line
@@ -72,8 +72,6 @@ 
#define SLOPE_X_INDEX               5

#define SLOPE_Y_INDEX               6

#define SLOPE_Z_INDEX               7

#define BMA2X2_MIN_DELAY            1

#define BMA2X2_MAX_DELAY            200

#define BMA2X2_RANGE_SET            3 /* +/- 2G */

#define BMA2X2_RANGE_SHIFT          4 /* shift 4 bits for 2G */

#define BMA2X2_BW_SET               12 /* 125HZ  */
@@ -1371,8 +1369,8 @@ static const struct interrupt_map_t int_map[] = { 
#define BMA2x2_VIO_MAX_UV       3400000



/* Polling delay in msecs */

#define POLL_INTERVAL_MIN_MS	1

#define POLL_INTERVAL_MAX_MS	10000

#define POLL_INTERVAL_MIN_MS	5

#define POLL_INTERVAL_MAX_MS	4000

#define POLL_DEFAULT_INTERVAL_MS 200



struct bma2x2_type_map_t {
@@ -1530,6 +1528,7 @@ static struct sensors_classdev sensors_cdev = { 
		.resolution = "0.156",	/* 15.63mg */

		.sensor_power = "0.13",	/* typical value */

		.min_delay = POLL_INTERVAL_MIN_MS * 1000, /* in microseconds */

		.max_latency = POLL_INTERVAL_MAX_MS,

		.fifo_reserved_event_count = 0,

		.fifo_max_event_count = 0,

		.enabled = 0,
@@ -5065,8 +5064,8 @@ static ssize_t bma2x2_delay_store(struct device *dev, 
	error = kstrtoul(buf, 10, &data);

	if (error)

		return error;

	if (data > BMA2X2_MAX_DELAY)

		data = BMA2X2_MAX_DELAY;

	if (data > POLL_INTERVAL_MAX_MS)

		data = POLL_INTERVAL_MAX_MS;

	atomic_set(&bma2x2->delay, (unsigned int) data);



	return count;
@@ -5169,10 +5168,10 @@ static int bma2x2_cdev_poll_delay(struct sensors_classdev *sensors_cdev, 
	struct bma2x2_data *data = container_of(sensors_cdev,

					struct bma2x2_data, cdev);



	if (delay_ms < BMA2X2_MIN_DELAY)

		delay_ms = BMA2X2_MIN_DELAY;

	if (delay_ms > BMA2X2_MAX_DELAY)

		delay_ms = BMA2X2_MAX_DELAY;

	if (delay_ms < POLL_INTERVAL_MIN_MS)

		delay_ms = POLL_INTERVAL_MIN_MS;

	if (delay_ms > POLL_INTERVAL_MAX_MS)

		delay_ms = POLL_INTERVAL_MAX_MS;

	atomic_set(&data->delay, (unsigned int) delay_ms);



	return 0;
@@ -7158,7 +7157,7 @@ static int bma2x2_probe(struct i2c_client *client, 
#ifndef CONFIG_BMA_ENABLE_NEWDATA_INT

	INIT_DELAYED_WORK(&data->work, bma2x2_work_func);

#endif

	atomic_set(&data->delay, BMA2X2_MAX_DELAY);

	atomic_set(&data->delay, POLL_DEFAULT_INTERVAL_MS);

	atomic_set(&data->enable, 0);



	dev = devm_input_allocate_device(&client->dev);