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path: root/drivers/iio/adc/nau7802.c
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2016-08-15iio: adc: Use complete() instead of complete_all()Daniel Wagner
There is only one waiter for the completion, therefore there is no need to use complete_all(). Let's make that clear by using complete() instead of complete_all(). The usage pattern of the completion is: waiter context waker context nau7802_read_irq() reinit_completion() nau7802_read_conversion() wait_for_completion_interruptible_timeout() nau7802_eoc_trigger() complete() Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-07-03iio: adc: add missing of_node references to iio_devMatt Ranostay
Adding missing indio_dev->dev.of_node references to allow iio consumers to access the device channels. Signed-off-by: Matt Ranostay <mranostay@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-21iio: adc: nau7802: Expose possible gains in sysfsQuentin Schulz
The Nuvoton NAU7802 ADC is able to adjust its gain but prior knowledge of its possible values was required to adjust it. Users had to guess the possible gain values based on the ADC datasheet or on this driver's code. This exposes the possible values in the in_voltage_scale_available file of each nau7802 ADC device. The gain is set for the whole ADC and is therefore not configurable by channel. Thus, there exists only one in_voltage_scale_available file for each nau7802 ADC device even if it has two separate channels. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> 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>
2013-10-23iio: adc: nau7802: Remove redundant of_match_ptrSachin Kamat
nau7802_dt_ids is always compiled in. Hence of_match_ptr is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-18iio: adc: nau7802: Include linux/of.h headerSachin Kamat
'of_match_ptr' is defined in linux/of.h. Include it explicitly to avoid build breakage in the future. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: adc: nau7802: Use devm_iio_device_allocSachin Kamat
Using devm_iio_device_alloc makes code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-03iio: Add Nuvoton NAU7802 ADC driverAlexandre Belloni
The Nuvoton NAU7802 ADC is a 24-bit 2-channels I2C ADC, with adjustable gain and sampling rates. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>