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path: root/drivers/iio/adc/ad_sigma_delta.c
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2018-07-28iio: ad_sigma_delta: use unsigned long for timeoutNicholas Mc Guire
wait_for_completion_timeout returns unsigned long not int so an appropriate variable is declared and the assignment and check fixed up. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-10-09Merge 4.14-rc4 into staging-nextGreg Kroah-Hartman
We want the staging/iio fixes in here as well to handle merge issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-24iio: ad_sigma_delta: Implement a dedicated reset functionDragos Bogdan
Since most of the SD ADCs have the option of reseting the serial interface by sending a number of SCLKs with CS = 0 and DIN = 1, a dedicated function that can do this is usefull. Needed for the patch: iio: ad7793: Fix the serial interface reset Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2017-08-22iio:adc: drop assign iio_info.driver_module and iio_trigger_ops.ownerJonathan Cameron
The equivalent of both of these are now done via macro magic when the relevant register calls are made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
2014-08-25iio: adc: ad_sigma_delta: Fix indio_dev->trig assignmentSrinivas Pandruvada
This can result in wrong reference count for trigger device, call iio_trigger_get to increment reference. Refer to http://www.spinics.net/lists/linux-iio/msg13669.html for discussion with Jonathan. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Cc: Stable@vger.kernel.org
2014-06-14iio: Remove timestamp argument from iio_trigger_poll() and ↵Peter Meerwald
iio_trigger_poll_chained() argument has been ignored; adjust drivers accordingly Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-11-15tree-wide: use reinit_completion instead of INIT_COMPLETIONWolfram Sang
Use this new function to make code more comprehensible, since we are reinitialzing the completion, not initializing. [akpm@linux-foundation.org: linux-next resyncs] Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13) Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-16iio:ad_sigma_delta: Remove redundant call to iio_sw_buffer_preenable().Lars-Peter Clausen
The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core, so there is no need to do this from the driver anymore. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21iio:ad_sigma_delta: Use iio_push_to_buffers_with_timestamp()Lars-Peter Clausen
Makes the code a bit shorter and less ugly. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-15iio: Remove unnecessary casts for iio_push_to_buffers()Lars-Peter Clausen
Now that iio_push_to_buffers() takes a void pointer for the data parameter we can remove those casts to u8*. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-03-25iio:trigger: Introduce iio_tigger_{set,get}_drvdataLars-Peter Clausen
Introduce iio_tigger_{set,get}_drvdata which allows to attach driver specific data to a trigger. The functions wrap access to the triggers private_data field and all current users are updated to use iio_tigger_{set,get}_drvdata instead of directly accessing the private_data field. This is the first step towards removing the private_data field from the iio_trigger struct. The following coccinelle script has been used to update the drivers: <smpl> @@ struct iio_trigger *trigger; expression priv; @@ -trigger->private_data = priv +iio_trigger_set_drv_data(trigger, priv) @@ struct iio_trigger *trigger; @@ -trigger->private_data +iio_trigger_get_drv_data(trigger) </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-11-10staging:iio: Add support for multiple buffersJonathan Cameron
Route all buffer writes through the demux. Addition or removal of a buffer results in tear down and setup of all the buffers for a given device. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
2012-09-08iio: Drop timestamp parameter from buffer store_to callbackLars-Peter Clausen
Drop timestamp parameter from buffer store_to callback and subsequently from iio_push_to_buffer. The timestamp parameter is unused and it seems likely that it will stay unused in the future, so it should be safe to remove it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2012-08-27iio:adc: Add common code for ADI Sigma Delta devicesLars-Peter Clausen
Most devices from the Analog Devices Sigma Delta family use a similar scheme for communication with the device. This includes register access, as well as trigger handling. But each device sub-family has different features and different register layouts (some even have no registers at all) and thus it is impractical to try to support all of the devices by the same driver. This patch adds a common base library for Sigma Delta converter devices. It will be used by individual drivers. This code is mostly based on the three existing Sigma Delta drivers the AD7192, AD7780 and AD7793, but has been improved for more robustness and flexibility. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>