- 25 Mar, 2021 40 commits
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Gwendal Grignou authored
Add timestamp channel in list of channel, to allow retrieving timestamps when events are produced. Signed-off-by:
Gwendal Grignou <gwendal@chromium.org> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20210317074012.2336454-2-gwendal@chromium.orgSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Guoqing Chi authored
A bool initializer is best assigned to false rather than 0. Signed-off-by:
Guoqing Chi <chiguoqing@yulong.com> Reviewed-by:
Marcelo Schmitt <marcelo.schmitt1@gmail.com> Link: https://lore.kernel.org/r/20210319062706.5135-1-chi962464zy@163.comSigned-off-by:
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Gwendal Grignou authored
Commit 2e2366c2 ("iio: cros_ec: unify hw fifo attributes into the core file") should be reverted as it set buffer extended attributes at the wrong place. However, to revert it will requires to revert more commits: commit 165aea80 ("iio: cros_ec: use devm_iio_triggered_buffer_setup_ext()") commit 21232b44 ("iio: buffer: remove iio_buffer_set_attrs() helper")). and we would still have conflict with more recent development. commit ee708e6b ("iio: buffer: introduce support for attaching more IIO buffers") Instead, this commit reverts the first 2 commits without re-adding iio_buffer_set_attrs() and set the buffer extended attributes at the right place: 1. Instead of adding has_fw_fifo, deduct it from the configuration: - EC must support FIFO (EC_FEATURE_MOTION_SENSE_FIFO) set. - sensors send data a regular interval (accelerometer, gyro, magnetomer, barometer, light sensor). - "Legacy accelerometer" is only present on EC without FIFO, so we don't need to set buffer attributes. 2. devm_iio_triggered_buffer_setup_ext() does not need to be called when EC does not support FIFO, as there is no FIFO to manage. 3. Use devm_iio_triggered_buffer_setup_ext() when EC has a FIFO to specify the buffer extended attributes. Fixes: 2e2366c2 ("iio: cros_ec: unify hw fifo attributes into the core file") Fixes: 165aea80 ("iio: cros_ec: use devm_iio_triggered_buffer_setup_ext()") Signed-off-by:
Alexandru Ardelean <ardeleanalex@gmail.com> Reviewed-by:
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Alexandru Ardelean authored
This is similar to the {devm_}iio_triggered_buffer_setup_ext variants added via commit 5164c788 ("iio: triggered-buffer: add {devm_}iio_triggered_buffer_setup_ext variants"). These can be used to pass extra buffer attributes to the buffer object. This is a bit of temporary mechanism (hopefully) so that drivers that want to allocate a kfifo buffer with extra buffer attributes, don't need to include 'buffer_impl.h' directly. This can also become an API function (in it's own right, unfortunately), but it may be a little less bad vs drivers having to include 'buffer_impl.h'. So, far the drivers that want to pass buffer attributes, all have to do with some HW FIFO attributes, so there may be a chance of unifying them into IIO core somehow (as some standard API). But, until that happens, we just need to let them register their HW FIFO attributes directly (without having to let them include 'buffer_impl.h' directly). Signed-off-by:Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210311091042.22417-1-aardelean@deviqon.comSigned-off-by:
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Linus Walleij authored
After some painful sessions with a driver that register an enable/disable sysfs knob (gp2ap002) and manually going in and enabling the event before monitoring it: cd /sys/bus/iio/devices/iio\:device2/events # ls in_proximity_thresh_either_en # echo 1 > in_proximity_thresh_either_en I realized that it's better if the iio_event_monitor is smart enough to enable all events by itself and disable them after use, if passed the -a flag familiar from the iio_generic_buffer tool. Auto-enabling events depend on the hardware being able to handle all events at the same time which isn't necessarily the case, so a command line option is required for this. Cc: Bastien Nocera <hadess@hadess.net> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210319135301.542911-1-linus.walleij@linaro.orgSigned-off-by:
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Seiya Wang authored
This commit adds dt-binding documentation of auxadc for Mediatek MT8195 SoC Platform. Signed-off-by:
Seiya Wang <seiya.wang@mediatek.com> Link: https://lore.kernel.org/r/20210319023427.16711-7-seiya.wang@mediatek.comSigned-off-by:
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LI Qingwu authored
Add support for ST magnetometer IIS2MDC, an I2C/SPI interface 3-axis magnetometer. The patch was tested on the instrument with IIS2MDC via I2C interface. Signed-off-by:
LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn> Link: https://lore.kernel.org/r/20210317063902.19300-3-Qing-wu.Li@leica-geosystems.com.cnSigned-off-by:
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LI Qingwu authored
Add support for ST magnetometer IIS2MDC, an I2C/SPI interface 3-axis magnetometer sensor. The patch was tested on the instrument with IIS2MDC via I2C interface. Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Mugilraj Dhavachelvan authored
Fixes a W=1 warning. -Added ``:`` to lock parameter in 'ad9832_state' description. -It's a reference comment so removed /** Signed-off-by:
Mugilraj Dhavachelvan <dmugil2000@gmail.com> Link: https://lore.kernel.org/r/20210315133711.26860-1-dmugil2000@gmail.comSigned-off-by:
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Mugilraj Dhavachelvan authored
Use devm_iio_device_register() to avoid remove function and drop explicit call to iio_device_unregister(). Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20210314175709.34301-1-dmugil2000@gmail.comSigned-off-by:
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Jonathan Cameron authored
cros_ec_sensors_read_data_unsafe() had wrong function name in kernel-doc This shows up with W=1 builds. No fixes tag because I don't want to waste time on this being backported. Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Link: https://lore.kernel.org/r/20210313145341.116088-1-jic23@kernel.org
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Jonathan Cameron authored
Should have been _kfifo_ and was _fifo_ Signed-off-by:
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Jonathan Cameron authored
All extremely obvious so nothing to add to patch title. Signed-off-by:
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Jonathan Cameron authored
This comment block isn't in kernel-doc format so drop the /** marking. Signed-off-by:
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Jonathan Cameron authored
Fixes a W=1 warning. Signed-off-by:
Tony Lindgren <tony@atomide.com> Reviewed-by:
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Jonathan Cameron authored
Probably a bit of cut and paste where someone forgot to change the part number. Signed-off-by:
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Jonathan Cameron authored
Nothing useful to add beyond this causing a warning with W=1 Signed-off-by:
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Jonathan Cameron authored
The documentation in this driver was nearly kernel-doc and was marked as such. Unfortunately the format was wrong and function names were missing. This patch puts them in with minor edits to keep the resulting line short. Signed-off-by:
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Jonathan Cameron authored
Two comment blocks had wrong naming for function/structures that they referred to. Results in warnings when doing a W=1 build. Signed-off-by:
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Oleksij Rempel authored
Add simple IRQ or GPIO base counter. This device is used to measure rotation speed of some agricultural devices, so no high frequency on the counter pin is expected. The maximal measurement frequency depends on the CPU and system load. On the idle iMX6S I was able to measure up to 20kHz without count drops. Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by:
Ahmad Fatoum <a.fatoum@pengutronix.de> Reviewed-by:
William Breathitt Gray <vilhelm.gray@gmail.com> Link: https://lore.kernel.org/r/20210301080401.22190-3-o.rempel@pengutronix.deSigned-off-by:
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Oleksij Rempel authored
Add binding for the interrupt counter node Signed-off-by:
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Alexandru Ardelean authored
This change converts the driver to use device-managed functions in the probe function. For the clock and regulator disable, some devm_add_action_or_reset() calls are required, and then devm_iio_device_register() function can be used register the IIO device. The final aim here would be for IIO to export only the device-managed functions of it's API. That's a long way to go and this a small step in that direction. Signed-off-by:
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Alexandru Ardelean authored
This change converts the driver to use device-managed functions in the probe function. The power-down call is handled now via a devm_add_action_or_reset() hook, and then devm_iio_device_register() can be used to register the IIO device. The final aim here would be for IIO to export only the device-managed functions of it's API. That's a long way to go and this a small step in that direction. Signed-off-by:
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Alexandru Ardelean authored
Thanks to Lars for finding this. The free of the 'attached_buffers' array should be done as late as possible. This change moves it to iio_buffers_put(), which looks like the best place for it, since it takes place right before the IIO device data is free'd. The free of this array will be handled by calling iio_device_free(). The iio_buffers_put() function is renamed to iio_device_detach_buffers() since the role of this function changes a bit. It looks like this issue was ocurring on the error path of iio_buffers_alloc_sysfs_and_mask() and in iio_buffers_free_sysfs_and_mask() Added a comment in the doc-header of iio_device_attach_buffer() to mention how this will be free'd in case anyone is reading the code and becoming confused about it. Fixes: ee708e6b ("iio: buffer: introduce support for attaching more IIO buffers") Reported-by:
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Linus Walleij authored
Before trying the custom method of reading the sensor as raw and then converting, we want to use iio_read_channel_processed_scale() which first tries to see if the ADC can provide a processed value directly, else reads raw and applies scaling inside of IIO using the scale attributes of the ADC. We need to multiply the scaled value with 1000 to get to microvolts from millivolts which is what processed IIO channels returns. Keep the code that assumes 12bit ADC around as a fallback. This gives correct readings on the AB8500 thermistor inputs used in the Ux500 HREFP520 platform for reading battery and board temperature. Cc: Peter Rosin <peda@axentia.se> Cc: Chris Lesiak <chris.lesiak@licor.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: linux-iio@vger.kernel.org Link: https://lore.kernel.org/linux-iio/20201224011607.1059534-1-linus.walleij@linaro.org/Signed-off-by:
Chris Lesiak <chris.lesiak@licor.com> Acked-by:
Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210308100219.2732156-2-linus.walleij@linaro.orgSigned-off-by:
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Linus Walleij authored
Since the old iio_read_channel_processed() would lose precision if we fall back to reading raw and scaling, we introduce a new API that will pass in a scale factor when reading a processed channel: iio_read_channel_processed_scale(). Refactor iio_read_channel_processed() as a special case with scale factor 1. Cc: Peter Rosin <peda@axentia.se> Cc: Chris Lesiak <chris.lesiak@licor.com> Cc: Jonathan Cameron <jic23@kernel.org> Cc: linux-iio@vger.kernel.org Link: https://lore.kernel.org/linux-iio/20201224011607.1059534-1-linus.walleij@linaro.org/Signed-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. In xadc_alloc_trigger, given dev is indio_dev->dev.parent, and we call devm_iio_trigger_alloc wit dev as argument, we do not have to set data->trig->dev.parent to indio_dev->dev.parent anymore. Signed-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. Given we call devm_iio_trigger_alloc() and devm_iio_device_alloc() with dev as parent, we do not have to set data->trig->dev.parent to indio_dev->dev.parent anymore. Signed-off-by:
Matt Ranostay <matt.ranostay@konsulko.com> Link: https://lore.kernel.org/r/20210309193620.2176163-8-gwendal@chromium.orgSigned-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. Given we call devm_iio_trigger_alloc() and devm_iio_device_alloc() with &client->dev as parent, we do not have to set data->trig->dev.parent to indio_dev->dev.parent anymore. Signed-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. Given data->dev is dev, and we call devm_iio_trigger_alloc with dev instead of data->dev, we do not have to set data->trig->dev.parent to dev anymore. Signed-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. Given data->client is client, and we call devm_iio_trigger_alloc() with &client->dev, we do not have to set data->trig->dev.parent to &data->client->dev anymore. Signed-off-by:
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Gwendal Grignou authored
iio_trigger_set_drvdata() sets the trigger device parent to first argument of viio_trigger_alloc(), no need to do it again in the driver code. Remove adis_trigger_setup() to match other drivers where setting the trigger is usually done in the probe() routine. Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210309193620.2176163-4-gwendal@chromium.orgSigned-off-by:
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Gwendal Grignou authored
Use cocci semantic patch: @@ expression trigger, P; @@ trigger = devm_iio_trigger_alloc(P, ...); ... - trigger->dev.parent = P; To remove trigger->dev.parent, since it is set by default. Signed-off-by:
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Gwendal Grignou authored
When allocated with [devm_]iio_trigger_alloc(), set trig device parent to the device the trigger is allocated for by default. It can always be reassigned in the probe routine. Change iio_trigger_alloc() API to add the device pointer to be coherent with devm_iio_trigger_alloc, using similar interface to iio_device_alloc(). Signed-off-by:
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Alexandru Tachici authored
Currently AD7124-8 driver cannot use more than 8 IIO channels because it was assigning the channel configurations bijectively to channels specified in the device-tree. This is not possible to do when using more than 8 channels as AD7124-8 has only 8 configuration registers. To allow the user to use all channels at once the driver will keep in memory configurations for all channels but will program only 8 of them at a time on the device. If multiple channels have the same configuration, only one configuration register will be used. If there are more configurations than available registers only the last 8 used configurations will be allowed to exist on the device in a LRU fashion. Signed-off-by:
Alexandru Tachici <alexandru.tachici@analog.com> Reported-by:
kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20210311091154.47785-2-alexandru.tachici@analog.comSigned-off-by:
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Andy Shevchenko authored
The unnecessary explicit casting is being used. Drop it for good. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210312134903.4296-1-andriy.shevchenko@linux.intel.comSigned-off-by:
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Andy Shevchenko authored
In a few places the unnecessary explicit castings are being used. Drop them for good. Signed-off-by:
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Andy Shevchenko authored
In a few places the unnecessary explicit castings are being used. Drop them for good. Signed-off-by:
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Andy Shevchenko authored
In few places the unnecessary explicit castings are being used. Drop them for good. Signed-off-by:
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Stephen Boyd authored
Add support for a ChromeOS EC proximity driver that exposes a "front" proximity sensor via the IIO subsystem. The EC decides when front proximity is near and sets an MKBP switch 'EC_MKBP_FRONT_PROXIMITY' to notify the kernel of proximity. Similarly, when proximity detects something far away it sets the switch bit to 0. For now this driver exposes a single sensor, but it could be expanded in the future via more MKBP bits if desired. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Benson Leung <bleung@chromium.org> Cc: Guenter Roeck <groeck@chromium.org> Cc: Douglas Anderson <dianders@chromium.org> Cc: Gwendal Grignou <gwendal@chromium.org> Reviewed-by:
Stephen Boyd <swboyd@chromium.org> Reviewed-by:
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