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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-09 09:33:29 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-09 09:33:29 +0200
commiteca743dc37e1018decfb307d564387477c1ac4fd (patch)
treec677f8d30f294a8c803963d555bb08a8dcd59ee5 /drivers/iio
parentf86cf25a609107960cf05263e491463feaae1f99 (diff)
parenta13bf65f3f2e36008ea60b49d3bda2527e09fd9c (diff)
Merge tag 'iio-fixes-4.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes: First set of IIO fixes for the 4.19 cycle. * ad9523 - sysfs write should return the number of characters used or an error, not 0 which could result in an infinite loop in userspace. * lsm6dsx - Fix computation of length when updating the watermark to include timestamps avoiding the watermark being set earlier than intended. * maxim_thermocouple - Revert a patch adding the max31856 as it's not actually compatible with the register set that this driver supports. * si1133 - Fix an impossible value check so we don't always error out whether the passed in value is good or bad.
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c13
-rw-r--r--drivers/iio/temperature/maxim_thermocouple.c1
2 files changed, 6 insertions, 8 deletions
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 7589f2ad1dae..631360b14ca7 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -187,12 +187,15 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor,
int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
{
- u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask;
+ u16 fifo_watermark = ~0, cur_watermark, fifo_th_mask;
struct st_lsm6dsx_hw *hw = sensor->hw;
struct st_lsm6dsx_sensor *cur_sensor;
int i, err, data;
__le16 wdata;
+ if (!hw->sip)
+ return 0;
+
for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
cur_sensor = iio_priv(hw->iio_devs[i]);
@@ -203,14 +206,10 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
: cur_sensor->watermark;
fifo_watermark = min_t(u16, fifo_watermark, cur_watermark);
- sip += cur_sensor->sip;
}
- if (!sip)
- return 0;
-
- fifo_watermark = max_t(u16, fifo_watermark, sip);
- fifo_watermark = (fifo_watermark / sip) * sip;
+ fifo_watermark = max_t(u16, fifo_watermark, hw->sip);
+ fifo_watermark = (fifo_watermark / hw->sip) * hw->sip;
fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl;
err = regmap_read(hw->regmap, hw->settings->fifo_ops.fifo_th.addr + 1,
diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c
index 54e383231d1e..c31b9633f32d 100644
--- a/drivers/iio/temperature/maxim_thermocouple.c
+++ b/drivers/iio/temperature/maxim_thermocouple.c
@@ -258,7 +258,6 @@ static int maxim_thermocouple_remove(struct spi_device *spi)
static const struct spi_device_id maxim_thermocouple_id[] = {
{"max6675", MAX6675},
{"max31855", MAX31855},
- {"max31856", MAX31855},
{},
};
MODULE_DEVICE_TABLE(spi, maxim_thermocouple_id);