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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-16 21:15:52 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-16 21:15:52 -0700
commit4301de3b0ac4614fdf629fa414fb94f598e7ad6f (patch)
treef26944b676a5f193f37583c2892a3faaf07662d7 /drivers/staging
parent25cb62b76430a91cc6195f902e61c2cb84ade622 (diff)
parentb94e22805a2224061bb263a82b72e09544a5fbb3 (diff)
Merge tag 'iio-fixes-for-4.3a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes: First set of IIO fixes for the 4.3 cycle. * twl4030 - incorrect readings for some channels due to a failure to initialize a bias regulator or configure the lines for input rather than USB use. * lis3lv02 - a missunderstanding of the way the interrupts worked on this chip lead to activation of the wrong interrupt. * sca3000 - an old bug meant that memory corruption could occur in the hardware ring buffer readout function. * mxs-lradc - wrong temp offset.
Diffstat (limited to 'drivers/staging')
-rw-r--r--drivers/staging/iio/accel/sca3000_ring.c2
-rw-r--r--drivers/staging/iio/adc/mxs-lradc.c9
2 files changed, 6 insertions, 5 deletions
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 23685e74917e..bd2c69f85949 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -116,7 +116,7 @@ static int sca3000_read_first_n_hw_rb(struct iio_buffer *r,
if (ret)
goto error_ret;
- for (i = 0; i < num_read; i++)
+ for (i = 0; i < num_read / sizeof(u16); i++)
*(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i);
if (copy_to_user(buf, rx, num_read))
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 3f7715c9968b..47fc00a3f63b 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -915,11 +915,12 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
case IIO_CHAN_INFO_OFFSET:
if (chan->type == IIO_TEMP) {
/* The calculated value from the ADC is in Kelvin, we
- * want Celsius for hwmon so the offset is
- * -272.15 * scale
+ * want Celsius for hwmon so the offset is -273.15
+ * The offset is applied before scaling so it is
+ * actually -213.15 * 4 / 1.012 = -1079.644268
*/
- *val = -1075;
- *val2 = 691699;
+ *val = -1079;
+ *val2 = 644268;
return IIO_VAL_INT_PLUS_MICRO;
}