Lars-Peter Clausen
557f3f5492
iio: xilinx-xadc: Make sure not exceed maximum samplerate ...
commit 3b7f9dbb827ce8680b98490215e698b6079a9ec5 upstream.
The XADC supports a samplerate of up to 1MSPS. Unfortunately the hardware
does not have a FIFO, which means it generates an interrupt for each
conversion sequence. At one 1MSPS this creates an interrupt storm that
causes the system to soft-lock.
For this reason the driver limits the maximum samplerate to 150kSPS.
Currently this check is only done when setting a new samplerate. But it is
also possible that the initial samplerate configured in the FPGA bitstream
exceeds the limit.
In this case when starting to capture data without first changing the
samplerate the system can overload.
To prevent this check the currently configured samplerate in the probe
function and reduce it to the maximum if necessary.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Fixes: bdc8cda1d0
2020-04-29 16:33:13 +02:00
iio: accel: adxl372: Set iio_chan BE
2020-03-25 08:25:53 +01:00
iio: xilinx-xadc: Make sure not exceed maximum samplerate
2020-04-29 16:33:13 +02:00
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Second set of IIO device support, features, cleanups and minor fixes for 5.3.
2019-07-01 10:58:13 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
iio: chemical: sps30: fix missing triggered buffer dependency
2020-03-25 08:25:53 +01:00
iio: st_sensors: rely on odr mask to know if odr can be set
2020-04-29 16:33:12 +02:00
iio: dac: ad5446: Add support for new AD5600 DAC
2019-12-31 16:45:19 +01:00
spi: docs: convert to ReST and add it to the kABI bookset
2019-07-31 14:13:13 -06:00
iio: frequency: adf4371: Fix output frequency setting
2019-08-05 17:38:33 +01:00
iio: st_gyro: Correct data for LSM9DS0 gyro
2020-02-01 09:34:36 +00:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting
2019-12-17 19:55:42 +01:00
iio: imu: st_lsm6dsx: Fix selection of ST_LSM6DS3_ID
2020-01-23 08:22:33 +01:00
iio: si1133: read 24-bit signed integer for measurement
2020-04-23 10:36:43 +02:00
iio: magnetometer: ak8974: Fix negative raw values in sysfs
2020-03-25 08:25:53 +01:00
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 309
2019-06-05 17:37:04 +02:00
iio: potentiometer: add a driver for Maxim 5432-5435
2019-08-05 14:25:08 +01:00
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
iio: cros_ec_baro: set info_mask_shared_by_all_available field
2019-12-31 16:45:15 +01:00
iio: srf04: fix wrong limitation in distance measuring
2019-10-12 14:31:09 +01:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
iio: max31856: add missing of_node and parent references to iio_dev
2019-12-31 16:42:46 +01:00
iio: trigger: stm32-timer: disable master mode when stopping
2020-03-25 08:25:53 +01:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
iio: buffer: align the size of scan bytes to size of the largest element
2020-01-23 08:22:33 +01:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Staging / IIO driver update for 5.3-rc1
2019-07-11 15:36:02 -07:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
Second set of IIO device support, features, cleanups and minor fixes for 5.3.
2019-07-01 10:58:13 +02:00
counter: stm32-lptimer: add counter device
2019-04-25 21:33:41 +02:00
557f3f5492