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authorTomi Valkeinen <tomi.valkeinen@ti.com>2014-03-20 07:09:19 +0100
committerTomi Valkeinen <tomi.valkeinen@ti.com>2014-03-20 07:13:50 +0100
commit17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9 (patch)
treea45f944e15a2600ec20ca4ec11b23d4641095e8e /drivers/iio/magnetometer/mag3110.c
parentVideo: atmel: avoid the id of fix screen info is overwritten (diff)
parentDoc/DT: Add DT binding documentation for tpd12s015 encoder (diff)
downloadlinux-17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9.tar.xz
linux-17d5ca91cfc59ae91da5ff9da74ab09a9a2a17d9.zip
Merge branch '3.15/dss-dt' into 3.15/fbdev
Merge OMAP DSS DT support
Diffstat (limited to 'drivers/iio/magnetometer/mag3110.c')
-rw-r--r--drivers/iio/magnetometer/mag3110.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index 4b65b6d3bdb1..f66955fb3509 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -106,7 +106,7 @@ static ssize_t mag3110_show_int_plus_micros(char *buf,
while (n-- > 0)
len += scnprintf(buf + len, PAGE_SIZE - len,
- "%d.%d ", vals[n][0], vals[n][1]);
+ "%d.%06d ", vals[n][0], vals[n][1]);
/* replace trailing space by newline */
buf[len - 1] = '\n';
@@ -154,6 +154,9 @@ static int mag3110_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
+ if (iio_buffer_enabled(indio_dev))
+ return -EBUSY;
+
switch (chan->type) {
case IIO_MAGN: /* in 0.1 uT / LSB */
ret = mag3110_read(data, buffer);
@@ -199,6 +202,9 @@ static int mag3110_write_raw(struct iio_dev *indio_dev,
struct mag3110_data *data = iio_priv(indio_dev);
int rate;
+ if (iio_buffer_enabled(indio_dev))
+ return -EBUSY;
+
switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
rate = mag3110_get_samp_freq_index(data, val, val2);