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path: root/drivers/iio/light/max44000.c
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2017-08-22iio:light: 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>
2016-12-30iio: max44000: correct value in illuminance_integration_time_availableAkinobu Mita
According to the datasheet, the shortest available integration time for ALS ADC conversion is 1.5625ms but illuminance_integration_time_available sysfs file shows wrong value. Cc: Crestez Dan Leonard <leonard.crestez@intel.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Fixes: d5d8f49b6 ("max44000: Expose ambient sensor scaling") Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-09-27drivers: iio: light: Fix sparse warningsSandhya Bankar
Fixing below warnings: drivers/iio/light/max44000.c:217:18: warning: cast to restricted __be16 drivers/iio/light/max44000.c:217:18: warning: cast to restricted __be16 drivers/iio/light/max44000.c:217:18: warning: cast to restricted __be16 drivers/iio/light/max44000.c:217:18: warning: cast to restricted __be16 Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-06-30iio:core: timestamping clock selection supportGregor Boirie
Adds a new per-device sysfs attribute "current_timestamp_clock" to allow userspace to select a particular POSIX clock for buffered samples and events timestamping. Following clocks, as listed in clock_gettime(2), are supported: CLOCK_REALTIME, CLOCK_MONOTONIC, CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME and CLOCK_TAI. Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Acked-by: Sanchayan Maity <maitysanchayan@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-05-21max44000: Remove scale from proximityCrestez Dan Leonard
This is not implemented and doesn't really make sense because IIO proximity is unit-less. Remove IIO_CHAN_INFO_SCALE from info_mask because so that the _scale sysfs entry won't appear. This fixes userspace tools like generic_buffer which abort when reads returns an error. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-24max44000: Initial triggered buffer supportCrestez Dan Leonard
Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-24max44000: Expose ambient sensor scalingCrestez Dan Leonard
This patch exposes ALSTIM as illuminance_integration_time and ALSPGA as illuminance_scale. Changing ALSTIM also changes the number of bits available in the data register. This is handled inside raw value reading because: * It's very easy to shift a few bits * It allows SCALE and INT_TIME to be completely independent controls * Buffer support requires constant scan_type.realbits per-channel Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-24max44000: Support controlling LED current outputCrestez Dan Leonard
This is exposed as an output channel with "led" as an extend_name. Other sensors also have support for controlling an external LED. It's not clear that simply exposing an undecorated output channel is the correct approach. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-24max44000: Initial support for proximity readingCrestez Dan Leonard
The proximity sensor relies on sending pulses to an external IR led and it is disabled by default on powerup. The driver will enable it with a default power setting. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2016-04-24max44000: Initial supportCrestez Dan Leonard
This just adds support for reporting illuminance with default settings. Important default registers are written on probe because the device otherwise lacks a reset function. Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>