summaryrefslogtreecommitdiff
path: root/drivers/iio/light/tcs3472.c
AgeCommit message (Collapse)Author
2017-09-03iio: light: tcs3472: support out-of-threshold eventsAkinobu Mita
The TCS3472 device provides interrupt signal for out-of-threshold events with persistence filter. This change adds interrupt support for the threshold events and enables to configure the period of time by persistence filter. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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>
2017-07-01iio: light: tcs3472: add link to datasheetAkinobu Mita
Add a link to the TCS3472 datasheet in the AMS's website. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2017-07-01iio: light: tcs3472: fix ATIME register writeAkinobu Mita
The integration time is controlled by the ATIME register only. However, this register is written by i2c_smbus_write_word_data() in write_raw(). We actually don't need to write a subsequent register. So just use i2c_smbus_write_byte_data() instead. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> 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>
2016-06-11iio: light: tcs3472: use iio helper function to guarantee direct modeAlison Schofield
Replace the code that guarantees the device stays in direct mode with iio_device_claim_direct_mode() which does same. This allows removal of an unused lock in the device private global data. Also prevents a previous race condition when a buffer is enabled whilst a raw read is going on. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Cc: Daniel Baluta <daniel.baluta@gmail.com> Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-11iio: Drop owner assignment from i2c_driverKrzysztof Kozlowski
i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-07-07iio:tcs3472: Check for buffer enabled and lockingPeter Meerwald
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-01-11iio: Remove obsolete variable in tcs3472 driverPeter Meerwald
len variable became obsolete with iio_push_to_buffers_with_timestamp() Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-12-17iio:light:tcs3472 replaces IIO_ST macro with explicit entries to struct ↵Jonathan Cameron
scan_type IIO_ST is going away as it is a pain to maintain. Signed-off-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de>
2013-09-21iio:tcs3472: 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> Cc: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-21iio: Fix tcs3472 dev-to-indio_dev conversion in suspend/resumePeter Meerwald
dev_to_iio_dev() is a false friend Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> 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>
2013-09-15iio: Fix tcs3472 buffer sizePeter Meerwald
and drop obsolete #define Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-14iio: Add tcs3472 color light sensor driverPeter Meerwald
chip has four 16-bit channels for red, green, blue, clear color intensity; driver supports the TCS3x7x family of devices and was tested with a TCS34725 chip; further information here: http://www.ams.com/eng/Products/Light-Sensors/Color-Sensor/TCS34725 v2 (thanks to Jonathan Cameron): * drop dynamic buffer allocation, buffer is in tcs3472_data * limit sysfs output to PAGE_SIZE * check val2 == 0 when writing CALIBSCALE Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jon Brenner <jon.brenner@ams.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-28 06:55:44 +0000