- 22 Jan, 2021 12 commits
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Ye Xiang authored
Each sample has a timestamp field with this change. This timestamp may be from the sensor hub when present or local kernel timestamp. And the unit of timestamp is nanosecond. Signed-off-by:
Ye Xiang <xiang.ye@intel.com> Link: https://lore.kernel.org/r/20210105093515.19135-3-xiang.ye@intel.comSigned-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Ye Xiang authored
The accel_3d sensor already has a timestamp channel, this patch just replicate that for gravity sensor. Signed-off-by:
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Stephan Gerhold authored
BMC150 needs VDD and VDDIO regulators that might need to be explicitly enabled. Add some rudimentary support to obtain and enable these regulators during probe() and disable them during remove() or on the error path. Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20210109152327.512538-2-stephan@gerhold.netSigned-off-by:
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Stephan Gerhold authored
BMC150 needs VDD and VDDIO regulators that might need to be explicitly enabled. Document support for vdd/vddio-supply to implement this. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Lars-Peter Clausen authored
Some enums might have gaps or reserved values in the middle of their value range. E.g. consider a 2-bit enum where the values 0, 1 and 3 have a meaning, but 2 is a reserved value and can not be used. Add support for such enums to the IIO enum helper functions. A reserved values is marked by setting its entry in the items array to NULL rather than the normal descriptive string value. Signed-off-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20210107112049.10815-1-alexandru.ardelean@analog.comSigned-off-by:
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Ye Xiang authored
Add channel description for hinge sensor, including channel label attribute and raw data description. Signed-off-by:
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Ye Xiang authored
The Hinge sensor is a common custom sensor on laptops. It calculates the angle between the lid (screen) and the base (keyboard). In addition, it also exposes screen and the keyboard angles with respect to the ground. Applications can easily get laptop's status in space through this sensor, in order to display appropriate user interface. Signed-off-by:
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Ye Xiang authored
Currently custom sensors properties are not decoded and it is up to user space to interpret. Some manufacturers already standardized the meaning of some custom sensors. They can be presented as a proper IIO sensor. We can identify these sensors based on manufacturer and serial number property in the report. This change is identifying hinge sensor when the manufacturer is "INTEL". This creates a platform device so that a sensor driver can be loaded to process these sensors. Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Link: https://lore.kernel.org/r/20201215054444.9324-2-xiang.ye@intel.comSigned-off-by:
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Stephan Gerhold authored
BMG160 needs VDD and VDDIO regulators that might need to be explicitly enabled. Add some rudimentary support to obtain and enable these regulators during probe() and disable them using a devm action. Signed-off-by:
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Stephan Gerhold authored
BMG160 needs VDD and VDDIO regulators that might need to be explicitly enabled. Document support for vdd/vddio-supply to implement this. Signed-off-by:
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Devajith V S authored
kxcjk1013 devices have VDD and VDDIO power lines. Need to make sure the regulators are enabled before any communication with kxcjk1013. This patch introduces vdd/vddio regulators for kxcjk1013. Signed-off-by:
Devajith V S <devajithvs@gmail.com> Link: https://lore.kernel.org/r/20201213172437.2779-2-devajithvs@gmail.comSigned-off-by:
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Devajith V S authored
kxcjk1013 devices have VDD and VDDIO power lines. Need to make sure the regulators are enabled before any communication with kxcjk1013. Document support for vdd/vddio-supply to implement this. Signed-off-by:
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- 09 Jan, 2021 23 commits
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Tomas Novotny authored
The vdd-supply property is optional if vref-supply is provided for mcp4726. Also the microchip,vref-buffered makes sense only if vref-supply is specified. Spotted by Jonathan during conversion to yaml. Reported-by:
Tomas Novotny <tomas@novotny.cz> Reviewed-by:
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Dragos Bogdan authored
The LTC2314-14 is a 14-bit, 4.5Msps, serial sampling A/D converter that draws only 6.2mA from a wide range analog supply adjustable from 2.7V to 5.25V. Signed-off-by:
Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by:
Mircea Caprioru <mircea.caprioru@analog.com> Link: https://lore.kernel.org/r/20201216083639.89425-1-mircea.caprioru@analog.comSigned-off-by:
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Xu Wang authored
Because clk_prepare_enable() and clk_disable_unprepare() already checked NULL clock parameter, so the additional checks are unnecessary, just remove them. Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Acked-by:
Fabrice Gasnier <fabrice.gasnier@foss.st.com> Link: https://lore.kernel.org/r/20201218093512.871-1-vulab@iscas.ac.cnSigned-off-by:
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Xu Wang authored
Because clk_disable_unprepare() already checked NULL clock parameter, so the additional check is unnecessary, just remove it. Signed-off-by:
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Linus Walleij authored
The hardware conversion mode only exists in the AB8500 version of the chip, as it is lacking in the AB8505 it will not be in the device tree and we should just not even try to obtain it. The driver already contains code to avoid using a non-existing hardware conversion IRQ at conversion time. Signed-off-by:
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Lars-Peter Clausen authored
Use DIV_ROUND_CLOSEST() instead of open-coding it. This makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @@ expression x, y; @@ -((x) + ((y) / 2)) / (y) +DIV_ROUND_CLOSEST(x, y) // </smpl> Signed-off-by:
Chunyan Zhang <zhang.lyra@gmail.com> Link: https://lore.kernel.org/r/20201222191618.3433-1-lars@metafoo.deSigned-off-by:
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Linus Walleij authored
This adds an IIO magnetometer driver for the Yamaha YAS530 family of magnetometer/compass chips YAS530, YAS532 and YAS533. A quick survey of the source code released by different vendors reveal that we have these variants in the family with some deployments listed: * YAS529 MS-3C (2005 Samsung Aries) * YAS530 MS-3E (2011 Samsung Galaxy S Advance) * YAS532 MS-3R (2011 Samsung Galaxy S4) * YAS533 MS-3F (Vivo 1633, 1707, V3, Y21L) * (YAS534 is a magnetic switch) * YAS535 MS-6C * YAS536 MS-3W * YAS537 MS-3T (2015 Samsung Galaxy S6, Note 5) * YAS539 MS-3S (2018 Samsung Galaxy A7 SM-A750FN) The YAS529 is so significantly different from the YAS53x variants that it will require its own driver. The YAS537 and YAS539 have slightly different register sets but have strong similarities so a common driver patching this one will probably be reasonable. The source code for Samsung Galaxy A7's YAS539 is not that is significantly different from the YAS530 in the Galaxy S Advance, so I believe we will only need this one driver with quirks to handle all of them. The YAS539 is actively announced on Yamaha's devices site: https://device.yamaha.com/en/lsi/products/e_compass/ This is a driver written from scratch using buffered IIO and runtime PM handling regulators and reset. Thanks to Andy Shevchenko for great help in finding all the special kernel infrastructure functions and quirks during review of this driver. Signed-off-by:
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Linus Walleij authored
This adds device tree bindings for the Yamaha YAS530 family of magnetometers/compass sensors. Signed-off-by:
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Lars-Peter Clausen authored
Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @r1@ expression x; constant C1; constant C2; @@ ((x) + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) * 2 != int(C2): cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_CLOSEST(x, C2) // </smpl> Signed-off-by:
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Lars-Peter Clausen authored
Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @r1@ expression x; constant C1; constant C2; @@ ((x) + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) * 2 != int(C2): cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_CLOSEST(x, C2) // </smpl> Signed-off-by:
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Lars-Peter Clausen authored
Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @r1@ expression x; constant C1; constant C2; @@ ((x) + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) * 2 != int(C2): cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_CLOSEST(x, C2) // </smpl> Signed-off-by:
Manivannan Sadhasivam <mani@kernel.org> Link: https://lore.kernel.org/r/20201227171126.28216-1-lars@metafoo.deSigned-off-by:
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Max Leiter authored
The device is used in the Microsoft Surface Book 3 and Surface Pro 7 Signed-off-by:
Max Leiter <maxwell.leiter@gmail.com> Reviewed-by:
Matt Ranostay <matt.ranostay@konsulko.com> Link: https://lore.kernel.org/r/20201220015057.107246-1-maxwell.leiter@gmail.comSigned-off-by:
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Stephan Gerhold authored
MPU-6880 seems to be very similar to MPU-6500 and it works fine with some minor additions for the mpu6050 driver. Add the necessary defines for it and make it use the same registers as MPU-6500 but with a FIFO size of 4096. Signed-off-by:
Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> Link: https://lore.kernel.org/r/20201202104656.5119-2-stephan@gerhold.netSigned-off-by:
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Stephan Gerhold authored
MPU-6880 seems to be very similar to MPU-6500 / MPU-6050 and it works fine with some minor additions for the mpu6050 driver. Add a compatible for it to the binding documentation. Signed-off-by:
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Jonathan Cameron authored
Very similar to the mpu6050 binding. Only unusual element is the i2c-gate section. Example tweaked a little to include a real device behind the gate. As Rob Herring suggested, dropped use of explicit i2c-gate yaml binding in favour of just using the i2c-controller.yaml binding directly. Signed-off-by:
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Jonathan Cameron authored
As Rob Herring suggested, this no long requires the explicit i2c-gate binding, but instead just used i2c-controller.yaml directly. 2 prior examples combinded into one as a single example can show all of the binding elements as long as the right part is selected. Signed-off-by:
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Zheng Yongjun authored
Replace a comma between expression statements by a semicolon. Signed-off-by:
Zheng Yongjun <zhengyongjun3@huawei.com> Link: https://lore.kernel.org/r/20201211085700.3037-1-zhengyongjun3@huawei.comSigned-off-by:
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Hans de Goede authored
The iio-core extends the attr_group provided by the driver with its own attributes. To be able to do this it: 1. Has its own (non const) io_dev_opaque.chan_attr_group attr_group struct 2. It allocates a new attrs array with room for both the drivers and its own attributes 3. It copies over the driver provided attributes into the newly allocated attrs array. But the drivers attr_group may contain more then just the attrs array, it may also contain an is_visible callback and at least the adi-axi-adc.c is currently defining such a callback. Change the attr_group copying code to also copy over the is_visible callback, so that drivers can define one and have it workins as is normal for attr_group-s all over the kernel. Note that the is_visible callback takes an index into the array as argument, so that indices of the driver's attributes must not change, this is not a problem as the driver's own attributes are added first to the newly allocated attrs array and the attributes handled by the core are appended after the driver's attributes. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Acked-by:
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Bartosz Golaszewski authored
In order to simplify resource management and error paths in probe() and entirely drop the remove() callback - use devres helpers wherever possible. Define devm actions for cancelling the delayed work and disabling the clock. Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Tested-by:
Anand Ashok Dumbre <anandash@xilinx.com> Reviewed-by:
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Bartosz Golaszewski authored
We now have devm_krealloc() in the kernel Use it indstead of calling kfree() and kcalloc() separately. Signed-off-by:
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Bartosz Golaszewski authored
It's more elegant to use a helper local variable to store the address of the underlying struct device than to dereference pdev everywhere. Signed-off-by:
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Lars-Peter Clausen authored
The xilinx-xadc IIO driver currently has support for the XADC in the Xilinx 7 series FPGAs. The system-monitor is the equivalent to the XADC in the Xilinx UltraScale and UltraScale+ FPGAs. The IP designers did a good job at maintaining backwards compatibility and only minor changes are required to add basic support for the system-monitor core. The non backwards compatible changes are: * Register map offset was moved from 0x200 to 0x400 * Only one ADC compared to two in the XADC * 10 bit ADC instead of 12 bit ADC * Two of the channels monitor different supplies Add the necessary logic to accommodate these changes to support the system-monitor in the XADC driver. Note that this patch does not include support for some new features found in the system-monitor like additional alarms, user supply monitoring and secondary system-monitor access. This might be added at a later time. Signed-off-by:
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Lars-Peter Clausen authored
Add binding documentation for the Xilinx System Management Wizard. The Xilinx System Management Wizard is a AXI frontend for the Xilinx System Monitor found in the UltraScale and UltraScale+ FPGAs. The System Monitor is the equivalent to the Xilinx XADC found in their previous generation of FPGAs and their external and internal interfaces are very similar. For this reason the share the same binding documentation. But since they are not 100% compatible and software will have to know about the differences they use a different compatible string. Signed-off-by:
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- 07 Jan, 2021 5 commits
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Song Chen authored
visorhba uses kthread to obtain the responses from the IO Service Partition periodically, on the other hand, visorbus provides periodic work to serve such request, therefore, kthread should be replaced by channel_interrupt. Signed-off-by:
Song Chen <chensong_2000@189.cn> Link: https://lore.kernel.org/r/1609923863-6650-1-git-send-email-chensong_2000@189.cnSigned-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Arnd Bergmann authored
Smatch found a local variable that can get copied to another local variable without an initializion in the error case: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1056 vchiq_get_user_ptr() error: uninitialized symbol 'ptr'. This seems harmless, as the function should normally get inlined, with the output directly written or not. In any case, the uninitialized data is never used after get_user() fails. As Dan mentions, it could still trigger an UBSAN runtime error, and it is of course a bad idea to copy uninitialized variables, so just bail out early. Reported-by:
kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20210105135256.1810337-1-arnd@kernel.orgSigned-off-by:
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Phil Elwell authored
Record in the TODO file that the address of "&waiter->bulk_waiter" should never be returned to userspace. Acked-by:
Phil Elwell <phil@raspberrypi.com> Link: https://lore.kernel.org/r/20210105162030.1415213-4-phil@raspberrypi.comSigned-off-by:
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Phil Elwell authored
The recent change to the bulk transfer compat function missed the fact the relevant ioctl command is VCHIQ_IOC_QUEUE_BULK_TRANSMIT32, not VCHIQ_IOC_QUEUE_BULK_TRANSMIT, as any attempt to send a bulk block to the VPU would have shown. Fixes: a4367cd2 ("staging: vchiq: convert compat bulk transfer") Acked-by:
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Phil Elwell authored
The addition of the local 'userdata' pointer to vchiq_irq_queue_bulk_tx_rx omitted the case where neither BLOCKING nor WAITING modes are used, in which case the value provided by the caller is not returned to them as expected, but instead it is replaced with a NULL. This lack of a suitable context may cause the application to crash or otherwise malfunction. Fixes: 4184da4f ("staging: vchiq: fix __user annotations") Tested-by:
Stefan Wahren <stefan.wahren@i2se.com> Acked-by:
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