- 25 Mar, 2021 17 commits
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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:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210312134743.4055-1-andriy.shevchenko@linux.intel.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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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:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
Stephen Boyd <swboyd@chromium.org> Reviewed-by:
Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20210211024601.1963379-4-swboyd@chromium.orgSigned-off-by:
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Stephen Boyd authored
Some cros ECs support a front proximity MKBP event via 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via a node that is a child of the main cros_ec device node. Devices that have this ability will describe this in firmware. 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> Cc: <devicetree@vger.kernel.org> Reviewed-by:
Rob Herring <robh@kernel.org> Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
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Stephen Boyd authored
Some cros ECs support a front proximity MKBP event via 'EC_MKBP_FRONT_PROXIMITY'. Add this define so it can be used in a future patch. 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> Acked-by:
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Gwendal Grignou authored
Remove kernel-doc keyword from function header comment. It fixes issues spotted by scripts/kernel-doc like: drivers/iio/<driver>.c:3: info: Scanning doc for function <component name> drivers/iio/<driver>.c:X: warning: expecting prototype for <component name>. Prototype was for <function>() instead To reproduce the errors: scripts/kernel-doc -v -none $(find drivers/iio/ -name \*.c \ -exec head -2 {} \+ | grep -B2 -e '\*\*' | grep '==' | cut -d ' ' -f 2) After, confirm these errors are gone with: scripts/kernel-doc -v -none $(git show --name-only | grep -e "^driver") Signed-off-by: -
Alexandru Ardelean authored
As pointed by Lars, this doesn't require a zero-check. Also, while looking at this a little closer at it (again), the masking can be done later, as there is a zero-check for 'mode_flags' anyway, which returns -EINVAL. And we only need the 'mode_flags' later in the logic. This change is more of a tweak. Fixes: e36db6a0 ("iio: kfifo: add devm_iio_kfifo_buffer_setup() helper") Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Alexandru Ardelean <ardeleanalex@gmail.com> Link: https://lore.kernel.org/r/20210306162834.7339-1-ardeleanalex@gmail.comSigned-off-by:
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Gwendal Grignou authored
Allow setting frequency below 1Hz or sub 1Hz precision. Useful for slow sensors like ALS. Test frequency is set properly: modprobe iio-trig-hrtimer && \ mkdir /sys/kernel/config/iio/triggers/hrtimer/t1 && \ cd /sys/bus/iio/devices/triggerX ; for i in 1 .1 .01 .001 ; do echo $i > sampling_frequency cat sampling_frequency done Signed-off-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20210226014733.2108544-1-gwendal@chromium.orgSigned-off-by:
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Baruch Siach authored
The ADI device-drivers-devel list no longer exists. Cc: Mike Frysinger <vapier@gentoo.org> Signed-off-by:
Baruch Siach <baruch@tkos.co.il> Link: https://lore.kernel.org/r/69b3e45e7666a1dd74a83df0b84ef8a63bf090ea.1614082343.git.baruch@tkos.co.ilSigned-off-by:
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Sean Nyekjaer authored
Improve readability by fixing indentation. Signed-off-by:
Sean Nyekjaer <sean@geanix.com> Link: https://lore.kernel.org/r/20210301080029.1974797-1-sean@geanix.comSigned-off-by:
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Ivan Mikhaylov authored
Add the proximity rate optional option and handling of it for vishay vcnl3020. Signed-off-by:
Ivan Mikhaylov <i.mikhaylov@yadro.com> Link: https://lore.kernel.org/r/20210225201444.12983-2-i.mikhaylov@yadro.comSigned-off-by:
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Sergiu Cuciurean authored
As part of the general cleanup of indio_dev->mlock, this change replaces it with a local lock on the device's state structure. This is part of a bigger cleanup. Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/Signed-off-by:
Sergiu Cuciurean <sergiu.cuciurean@analog.com> Signed-off-by:
Mircea Caprioru <mircea.caprioru@analog.com> Link: https://lore.kernel.org/r/20200928131333.36646-3-mircea.caprioru@analog.comSigned-off-by:
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Sergiu Cuciurean authored
As part of the general cleanup of indio_dev->mlock, this change replaces it with a local lock on the device's state structure. This is part of a bigger cleanup. Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/Signed-off-by:
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Sergiu Cuciurean authored
As part of the general cleanup of indio_dev->mlock, this change replaces it with a local lock on the device's state structure. This is part of a bigger cleanup. Link: https://lore.kernel.org/linux-iio/CA+U=Dsoo6YABe5ODLp+eFNPGFDjk5ZeQEceGkqjxXcVEhLWubw@mail.gmail.com/Signed-off-by:
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Jonathan Cameron authored
This control on the gain of a measurement used for time of flight sensing is standard but the expected values for different enviroments may not be. As we cannot have the same ABI element documented in two files, add a generic version to sysfs-bus-iio-proximity and a note on the expected value vs measuring environment for the as3935. Fixes $ scripts/get_abi.pl validate Warning: /sys/bus/iio/devices/iio:deviceX/sensor_sensitivity is defined 2 times: ./Documentation/ABI/testing/sysfs-bus-iio-distance-srf08:0 ./Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935:8 Cc: Matt Ranostay <matt.ranostay@konsulko.com> Reported-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
Matt Ranostay <matt.ranostay@konsulko.com> Link: https://lore.kernel.org/r/20210117153816.696693-7-jic23@kernel.orgSigned-off-by:
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Jonathan Cameron authored
These contain only one entry for out_current_heater_raw (_available). Document this in a new sysfs-bus-iio-humidity file, and make it a little more generic by allowing for non 0/1 values. Fixes $ scripts/get_abi.pl validate Warning: /sys/bus/iio/devices/iio:deviceX/out_current_heater_raw is defined 2 times: ./Documentation/ABI/testing/sysfs-bus-iio-humidity-hdc2010:0 ./Documentation/ABI/testing/sysfs-bus-iio-humidity-hdc100x:0 Warning: /sys/bus/iio/devices/iio:deviceX/out_current_heater_raw_available is defined 2 times: ./Documentation/ABI/testing/sysfs-bus-iio-humidity-hdc2010:1 ./Documentation/ABI/testing/sysfs-bus-iio-humidity-hdc100x:1 Cc: Eugene Zaikonnikov <ez@norphonic.com> Cc: Matt Ranostay <matt.ranostay@konsulko.com> Reported-by:
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- 11 Mar, 2021 23 commits
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Linus Walleij authored
To get access to the big endian byte order parsing helpers drivers need to include <asm/unaligned.h> and nothing else. Cc: Gene Chen <gene_chen@richtek.com> Suggested-by:
Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20210215153447.48457-1-linus.walleij@linaro.orgSigned-off-by:
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Nuno Sa authored
Add some helpers to lock and unlock the device. As this is such a simple change, we update all the users that were using the lock already in this patch. Signed-off-by:
Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210218114039.216091-5-nuno.sa@analog.comSigned-off-by:
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Nuno Sá authored
`adi,scaled-output-hz` is no longer used by the driver. Acked-by:
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Nuno Sa authored
With this patch, we don't force users to define the IMU scaled internal sampling rate once in the devicetree. Now it's dynamically calculated at runtime depending on the desired output rate given by users. Calculating the sync_scale dynamically gives us better chances of achieving a perfect/integer value for DEC_RATE (thus giving more flexibility). The math is: 1. lcm of the input clock and the desired output rate. 2. get the highest multiple of the previous result lower than the adis max rate. 3. The last result becomes the IMU sample rate. Use that to calculate SYNC_SCALE and DEC_RATE (to get the user output rate). Signed-off-by: -
Nuno Sa authored
When using PPS mode, the input clock needs to be scaled so that we have an IMU sample rate between (optimally) 4000 and 4250. After this, we can use the decimation filter to lower the sampling rate in order to get what the user wants. Optimally, the user sample rate is a multiple of both the IMU sample rate and the input clock. Hence, calculating the sync_scale dynamically gives us better chances of achieving a perfect/integer value for DEC_RATE. The math here is: 1. lcm of the input clock and the desired output rate. 2. get the highest multiple of the previous result lower than the adis max rate. 3. The last result becomes the IMU sample rate. Use that to calculate SYNC_SCALE and DEC_RATE (to get the user output rate). Fixes: 326e2357 ("iio: imu: adis16480: Add support for external clock") Signed-off-by: -
Alexandru Ardelean authored
The channels are of type iio_chan_spec, not axi_adc_chan_spec. They were in some earlier version, but forgot to rename in the doc-string. Fixes: ef040706 ("iio: adc: adi-axi-adc: add support for AXI ADC IP core") Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20210219090134.48057-1-alexandru.ardelean@analog.comSigned-off-by:
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Alexandru Ardelean authored
Since the new change to the IIO buffer infrastructure, the buffer/ and scan_elements/ directories have been merged into bufferY/ to have some attributes available per-buffer. This change updates the ABI docs to reflect this change. The hwfifo attributes are not updated, as for now these should be used via the legacy buffer/ directory until they are moved into core. Signed-off-by:
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Mircea Caprioru authored
The AD5673R/AD5677R are low power, 16-channel, 12-/16-bit buffered voltage output digital-to-analog converters (DACs). They include a 2.5 V internal reference (enabled by default). These devices are very similar to AD5674R/AD5679R, except that they have an i2c interface. Signed-off-by:
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Hans de Goede authored
Some 2-in-1 laptops / convertibles with 360° (yoga-style) hinges, have 2 accelerometers, 1 in their base and 1 in their display. In many cases the kernel can detect the location of each accelerometer based on e.g. information from the ACPI tables. It is important for userspace to know the location of the 2 accelerometers. Rather then adding a new sysfs-attribute for this we can relay this information to userspace by using standardized label strings for this. This mirrors how this is done for proximity sensors. This commit documents 2 new standardized label strings for this purpose: "accel-base" "accel-display" Note the "base" and "display" suffixes were chosen to match the values used for the systemd/udev hwdb.d/60-sensor.hwdb file's ACCEL_LOCATION property. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mark Pearson <mpearson@lenovo.com> Cc: Bastien Nocera <hadess@hadess.net> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20210215191003.698888-2-hdegoede@redhat.comSigned-off-by:
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Hans de Goede authored
Add an entry to Documentation/ABI/testing/sysfs-bus-iio for the new device label sysfs-attribute support. And document the standardized labels which may be used with proximity sensors to hint userspace about the intended use of the sensor. Using labels to differentiate between the multiple proximity sensors which a modern laptop/tablet may have was discussed in this thread: https://lore.kernel.org/linux-iio/9f9b0ff6-3bf1-63c4-eb36-901cecd7c4d9@redhat.com/ As mentioned there the "proximity-wifi*" labels are already being used in this manner on some chromebooks, see e.g.: arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi arch/arm64/boot/dts/qcom/sc7180-trogdor-lte-sku.dtsi And the "proximity-palmrest" and "proximity-lap" labels are intended to be used with the lap and palmrest sensors found in recent Lenovo ThinkPad models. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mark Pearson <mpearson@lenovo.com> Cc: Bastien Nocera <hadess@hadess.net> Signed-off-by:
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Ye Xiang authored
Add relative hysteresis in ABI documentation for als sensor. Signed-off-by:
Ye Xiang <xiang.ye@intel.com> Link: https://lore.kernel.org/r/20210207070048.23935-4-xiang.ye@intel.comSigned-off-by:
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Ye Xiang authored
Hid sensor als use relative hysteresis, this patch adds the support. Signed-off-by:
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Ye Xiang authored
Some hid sensors may use relative sensitivity such as als sensor. This patch adds relative sensitivity checking for all hid sensors. Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Link: https://lore.kernel.org/r/20210207070048.23935-2-xiang.ye@intel.comSigned-off-by:
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Ye Xiang authored
Before, when reading/writing the hysteresis of als, incli-3d, press, and rotation sensor, we will get invalid argument error. This patch add more sensitivity data fields for these sensors, so that these sensors can get sensitivity index and return correct hysteresis value. Signed-off-by:
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Ye Xiang authored
No functional change has been made with this patch. The main intent here is to reduce code repetition of getting sensitivity attribute. In the current implementation, sensor_hub_input_get_attribute_info() is called from multiple drivers to get attribute info for sensitivity field. Moving this to common place will avoid code repetition. Signed-off-by:
Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210201054921.18214-2-xiang.ye@intel.comSigned-off-by:
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Luca Ceresoli authored
Show that this field is optional, just like the shift value. Signed-off-by:
Luca Ceresoli <luca@lucaceresoli.net> Link: https://lore.kernel.org/r/20210215143511.25471-6-luca@lucaceresoli.netSigned-off-by:
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Luca Ceresoli authored
This 2nd-level bullet list is not properly ReST-formatted and thus it gets rendered as a unique paragraph quite unreadable. Fix by adding spaces as needed. While there also swap "shift" and "repeat" so they are in the correct order. Signed-off-by:
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Luca Ceresoli authored
Two out of three attributes are documented, document the third one too. Signed-off-by:
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Luca Ceresoli authored
This directory is a, well, directory, not a file. Signed-off-by:
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Luca Ceresoli authored
This line is part of the code snippet, so it has to be nested in order to be rendered correctly. Signed-off-by:
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Julia Lawall authored
Use getter and setter functions, for a variety of data types. Signed-off-by:
Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20210209211315.1261791-1-Julia.Lawall@inria.frSigned-off-by:
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Alexandru Ardelean authored
This change makes use of the new IIO buffer API to read data from an IIO buffer. It doesn't read the /sys/bus/iio/devices/iio:deviceX/scan_elements dir anymore, it reads /sys/bus/iio/devices/iio:deviceX/bufferY, where all the scan_elements have been merged together with the old/classical buffer attributes. And it makes use of the new IIO_BUFFER_GET_FD_IOCTL ioctl to get an FD for the IIO buffer for which to read data from. It also does a quick sanity check to see that -EBUSY is returned if reading the chardev after the ioctl() has succeeded. This was tested with the following cases: 1. Tested buffer0 works with ioctl() 2. Tested that buffer0 can't be opened via /dev/iio:deviceX after ioctl() This check should be omitted under normal operation; it's being done here to check that the driver change is sane 3. Moved valid buffer0 to be buffer1, and tested that data comes from it Signed-off-by: -
Alexandru Ardelean authored
Mostly a tidy-up. But also helps to understand the limits of scope of these functions and globals. Signed-off-by:
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