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Staging/IIO fixes for 4.8-rc6

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Here are a few small IIO fixes for 4.8-rc6.
 
 Nothing major, full details are in the shortlog, all of these have been
 in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull IIO fixes from Greg KH:
 "Here are a few small IIO fixes for 4.8-rc6.

  Nothing major, full details are in the shortlog, all of these have
  been in linux-next with no reported issues"

* tag 'staging-4.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio:core: fix IIO_VAL_FRACTIONAL sign handling
  iio: ensure ret is initialized to zero before entering do loop
  iio: accel: kxsd9: Fix scaling bug
  iio: accel: bmc150: reset chip at init time
  iio: fix pressure data output unit in hid-sensor-attributes
  tools:iio:iio_generic_buffer: fix trigger-less mode
This commit is contained in:
Linus Torvalds 2016-09-11 14:23:48 -07:00
commit 2afe669acd
6 changed files with 19 additions and 8 deletions
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11
drivers/iio/accel/bmc150-accel-core.c
View File

@ -67,6 +67,9 @@
#define BMC150_ACCEL_REG_PMU_BW 0x10
#define BMC150_ACCEL_DEF_BW 125
#define BMC150_ACCEL_REG_RESET 0x14
#define BMC150_ACCEL_RESET_VAL 0xB6
#define BMC150_ACCEL_REG_INT_MAP_0 0x19
#define BMC150_ACCEL_INT_MAP_0_BIT_SLOPE BIT(2)
@ -1497,6 +1500,14 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
int ret, i;
unsigned int val;
/*
* Reset chip to get it in a known good state. A delay of 1.8ms after
* reset is required according to the data sheets of supported chips.
*/
regmap_write(data->regmap, BMC150_ACCEL_REG_RESET,
BMC150_ACCEL_RESET_VAL);
usleep_range(1800, 2500);
ret = regmap_read(data->regmap, BMC150_ACCEL_REG_CHIP_ID, &val);
if (ret < 0) {
dev_err(dev, "Error: Reading chip id\n");

1
drivers/iio/accel/kxsd9.c
View File

@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
if (ret < 0)
goto error_ret;
*val = 0;
*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
ret = IIO_VAL_INT_PLUS_MICRO;
break;

4
drivers/iio/common/hid-sensors/hid-sensor-attributes.c
View File

@ -56,8 +56,8 @@ static struct {
{HID_USAGE_SENSOR_ALS, 0, 1, 0},
{HID_USAGE_SENSOR_ALS, HID_USAGE_SENSOR_UNITS_LUX, 1, 0},
{HID_USAGE_SENSOR_PRESSURE, 0, 100000, 0},
{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 1, 0},
{HID_USAGE_SENSOR_PRESSURE, 0, 100, 0},
{HID_USAGE_SENSOR_PRESSURE, HID_USAGE_SENSOR_UNITS_PASCAL, 0, 1000},
};
static int pow_10(unsigned power)

4
drivers/iio/industrialio-buffer.c
View File

@ -110,7 +110,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
DEFINE_WAIT_FUNC(wait, woken_wake_function);
size_t datum_size;
size_t to_wait;
int ret;
int ret = 0;
if (!indio_dev->info)
return -ENODEV;
@ -153,7 +153,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
ret = rb->access->read_first_n(rb, n, buf);
if (ret == 0 && (filp->f_flags & O_NONBLOCK))
ret = -EAGAIN;
} while (ret == 0);
} while (ret == 0);
remove_wait_queue(&rb->pollq, &wait);
return ret;

5
drivers/iio/industrialio-core.c
View File

@ -613,9 +613,8 @@ ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals)
return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
case IIO_VAL_FRACTIONAL:
tmp = div_s64((s64)vals[0] * 1000000000LL, vals[1]);
vals[1] = do_div(tmp, 1000000000LL);
vals[0] = tmp;
return sprintf(buf, "%d.%09u\n", vals[0], vals[1]);
vals[0] = (int)div_s64_rem(tmp, 1000000000, &vals[1]);
return sprintf(buf, "%d.%09u\n", vals[0], abs(vals[1]));
case IIO_VAL_FRACTIONAL_LOG2:
tmp = (s64)vals[0] * 1000000000LL >> vals[1];
vals[1] = do_div(tmp, 1000000000LL);

2
tools/iio/iio_generic_buffer.c
View File

@ -456,7 +456,7 @@ int main(int argc, char **argv)
if (notrigger) {
printf("trigger-less mode selected\n");
} if (trig_num >= 0) {
} else if (trig_num >= 0) {
char *trig_dev_name;
ret = asprintf(&trig_dev_name, "%strigger%d", iio_dir, trig_num);
if (ret < 0) {