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2018-12-28Merge tag 'staging-4.21-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the big staging and iio driver pull request for 4.21-rc1. Lots and lots of tiny patches here, nothing major at all. Which is good, tiny cleanups is nice to see. No new huge driver removal or addition, this release cycle, although there are lots of good IIO driver changes, addtions, and movement from staging into the "real" part of the kernel, which is always great. Full details are in the shortlog, and all of these have been in linux-next for a while with no reported issues" * tag 'staging-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (553 commits) staging: mt7621-mmc: Correct spelling mistakes in comments staging: wilc1000: fix missing read_write setting when reading data mt7621-mmc: char * array declaration might be better as static const mt7621-mmc: return statement in void function unnecessary mt7621-mmc: Alignment should match open parenthesis mt7621-mmc: Removed unnecessary blank lines mt7621-mmc: Fix some coding style issues staging: android: ashmem: doc: Fix spelling staging: rtl8188eu: cleanup brace coding style issues staging: rtl8188eu: add spaces around '&' in rtw_mlme_ext.c staging: rtl8188eu: change return type of is_basicrate() to bool staging: rtl8188eu: simplify null array initializations staging: rtl8188eu: change order of declarations to improve readability staging: rtl8188eu: make some arrays static in rtw_mlme_ext.c staging: rtl8188eu: constify some arrays staging: rtl8188eu: convert unsigned char arrays to u8 staging: rtl8188eu: remove redundant declaration in rtw_mlme_ext.c staging: rtl8188eu: remove unused arrays WFD_OUI and WMM_INFO_OUI staging: rtl8188eu: remove unnecessary parentheses in rtw_mlme_ext.c staging: rtl8188eu: remove unnecessary comments in rtw_mlme_ext.c ...
2018-12-25Merge tag 'platform-drivers-x86-v4.21-1' of ↵Linus Torvalds
git://git.infradead.org/linux-platform-drivers-x86 Pull x86 platform driver updates from Andy Shevchenko: - The USB Power Delivery discrete components now can be enumerated by i2c-multi-instantiate driver via several resources under single ACPI device node (ACPI ID is INT3515). - Touchscreen support is added for the Mediacom Flexbook Edge 11. - Mellanox driver got fixed due to updates in their firmware. - The power management stub driver for AtomISP v2 is fixed in order to support Intel Baytrail SoCs where same quirk is needed for S0ix to work. - Special key handling has been fixed for Favorites hotkey on Thinkpad, and Screen LOCK on ASUS. - Ideapad Yoga 2 13 has no HW rfkill switch, thus, driver has been updated to support this. - Few cleanups related to debugfs have been made in Intel IPS and Intel PMC drivers. Besides that Intel PMC has been extended to show more detailed information about Latency Tolerance * tag 'platform-drivers-x86-v4.21-1' of git://git.infradead.org/linux-platform-drivers-x86: (41 commits) platform/x86: mlx-platform: Convert to use SPDX identifier Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform/x86: mlx-platform: Allow mlxreg-io driver activation for new systems platform/x86: mlx-platform: Fix LED configuration platform/x86: mlx-platform: Fix tachometer registers platform/x86: mlx-platform: Rename new systems product names platform/x86: mlx-platform: Add definitions for new registers platform/x86: intel_telemetry: convert to DEFINE_SHOW_ATTRIBUTE platform/x86: intel_pmc_core: convert to DEFINE_SHOW_ATTRIBUTE platform/x86: thinkpad_acpi: Cleanup quirks macros platform/x86: touchscreen_dmi: Add info for the Mediacom Flexbook Edge 11 platform/x86: Fix config space access for intel_atomisp2_pm platform/x86: Add the VLV ISP PCI ID to atomisp2_pm platform/x86: intel_ips: Convert to use DEFINE_SHOW_ATTRIBUTE macro platform/x86: intel_ips: Remove never happen condition platform/x86: intel_ips: NULL check before some freeing functions is not needed platform/x86: intel_ips: remove unnecessary checks in ips_debugfs_init iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helper ACPI / scan: Create platform device for INT3515 ACPI nodes platform/x86: i2c-multi-instantiate: Allow to have same slaves ...
2018-12-13Merge tag 'iio-for-4.21b' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next Jonathan writes: Second set of IIO new device support, features and cleanups for the 4.21 cycle. Staging graduation * ad2s90 - Driver for this resolver to digital chip. New drivers and device support. * ad5686 - Add support for ad5310r DAC and associated fix in value read back. * exynos-adc - Support for S5PV210 which is slightly different from other parts. * mcp41010 - Driver supporting MCP41010, MCP41050, MCP41100, MCP42010, MCP42050 and MCP42100 microchip potentiometers. New ACPI ids. * ak8975 - AKM9911 ACPI HID. * kxcjk-1013 - KXJ2109 ACPI HID. - KIOX010A ACPI HID. New features * ad5933 - Explicit DT binding. * ad2s90 - Explicit DT binding including dropping spi setup that is done via dt in favour of verifying the settings form DT. * adt7316 - Explicit DT binding and support for gpio, irq_flags etc. * stm32-adc - Runtime power management. Minor fixes and cleanups * core - Protect against missing info structure. * ad2s90 - SPDX - Add documentation fo the mutex. * ad7280a - Check allocation failure. - Fix an accidental replacement of an error return. * adt7316 - Switch some variables to be local and rename for consistency with other drivers. - Revert a false handling of 0 as an error introduced earlier this cycle. * bmi160 - Use devm functions throughout probe() to avoid need for remove(). * hid-sensor-hub - White space cleanup. * hts221 - MAINTAINERS entry. * lis302 - Use generic name in the DT binding doc. * Messon-saradc - Check for allocation error. - Fix some presented clock names that break clk debugfs. * qcom-spmi-adc - A fix for initialization of the prescale property. Came late in the cycle, so merge window is probably the best route for this. * st_lsm6dsx - Allow for variable read length to support wider range of slave devices. * tag 'iio-for-4.21b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (37 commits) iio: adc: qcom-spmi-adc5: Initialize prescale properly dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant iio: adc: Allow selection of Exynos ADC on S5PV210 iio: adc: exynos-adc: Add S5PV210 variant iio: bmi160: use all devm functions in probe iio: dac: ad5686: fix bit shift read register iio:dac:ad5686: Add AD5310R support Revert "Staging: iio: adt7316: Add an extra check for 'ret' equals to 0" dt-bindings: iio: accel: use a generic node name for lis302 iio: core: check 'info' value before registering the device staging: iio: adc: ad7280a: fix overwrite of the returned value staging: iio: adc: ad7280a: check for devm_kasprint() failure iio: humidity: hts221: add entry in MAINTAINERS file iio: magnetometer: ak8975: Add the "AKM9911" ACPI HID staging:iio:ad2s90: Move out of staging staging:iio:ad2s90: Add comment to device state mutex staging:iio:ad2s90: Replace license text w/ SPDX identifier dt-bindings:iio:resolver: Add docs for ad2s90 staging:iio:ad2s90: Add max frequency check at probe staging:iio:ad2s90: Remove spi setup that should be done via dt ...
2018-12-12iio: adc: qcom-spmi-adc5: Initialize prescale properlyEvan Green
adc5_get_dt_data uses a local, prop, feeds it to adc5_get_dt_channel_data, and then puts the result into adc->chan_props. The problem is adc5_get_dt_channel_data may not initialize that structure fully, so a garbage value is used for prescale if the optional "qcom,pre-scaling" is not defined in DT. adc5_read_raw then uses this as an array index, generating a crash that looks like this: [ 6.683186] Unable to handle kernel paging request at virtual address ffffff90e78c7964 Call trace: qcom_vadc_scale_code_voltage_factor+0x74/0x104 qcom_vadc_scale_hw_calib_die_temp+0x20/0x60 qcom_adc5_hw_scale+0x78/0xa4 adc5_read_raw+0x3d0/0x65c iio_channel_read+0x240/0x30c iio_read_channel_processed+0x10c/0x150 qpnp_tm_get_temp+0xc0/0x40c of_thermal_get_temp+0x7c/0x98 thermal_zone_get_temp+0xac/0xd8 thermal_zone_device_update+0xc0/0x38c qpnp_tm_probe+0x624/0x81c platform_drv_probe+0xe4/0x11c really_probe+0x188/0x3fc driver_probe_device+0xb8/0x188 __device_attach_driver+0x114/0x180 bus_for_each_drv+0xd8/0x118 __device_attach+0x180/0x27c device_initial_probe+0x20/0x2c bus_probe_device+0x78/0x124 deferred_probe_work_func+0xfc/0x138 process_one_work+0x3d8/0x8b0 process_scheduled_works+0x48/0x6c worker_thread+0x488/0x7cc kthread+0x24c/0x264 ret_from_fork+0x10/0x18 Unfortunately, when I went to add the initializer for this and tried to boot it, my machine shut down immediately, complaining that it was hotter than the sun. It appears that adc5_chans_pmic and adc5_chans_rev2 were initializing prescale_index as if it were directly a divisor, rather than the index into adc5_prescale_ratios that it is. Fix the uninitialized value, and change the static initialization to use indices into adc5_prescale_ratios. Signed-off-by: Evan Green <evgreen@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-12iio: adc: Allow selection of Exynos ADC on S5PV210Jonathan Bakker
Make it possible to use Exynos ADC driver on S5PV210 based devices. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-12iio: adc: exynos-adc: Add S5PV210 variantJonathan Bakker
S5PV210's ADC variant is almost the same as v1 except that it has 10 channels and doesn't require the pmu register Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-10iio: bmi160: use all devm functions in probeMartin Kelly
Currently, we're using the devm version of some but not all functions. Switch to the devm version of iio_triggered_buffer_setup and iio_device_register to simplify the code a bit and decrease the chance of bugs. Signed-off-by: Martin Kelly <martin@martingkelly.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-08iio: dac: ad5686: fix bit shift read registerMircea Caprioru
This patch solves the register readback issue with the bit shift. When the dac resolution was lower than the register size (ex. 12 bits out of 16 bits) the readback value was not shifted with the difference in bits and the value was higher. Also a mask is applied on the read value in order to get the value relative to the actual bit size. Fixes: 0357e488b8 ("iio:dac:ad5686: Refactor the driver") Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-08iio:dac:ad5686: Add AD5310R supportStefan Popa
The AD5310R is a single channel DAC with 10-bit precision, which is part of the same family as AD5311R, except that it uses the spi interface instead of i2c. The device has a built-in 2.5V reference which is enabled by default. Another important difference is that the SPI write command operation is 16 bits long. The first four bits represent the command, while the remaining 12 bits are for data. In the control reg, DB9 and DB10 are used for power-down modes, while DB8 is the REF bit. In order to accommodate this change, a new regmap type was defined and checked accordingly. Because AD5310R does not have a readback register, the read_raw operation will return "Operation is not supported". Datasheet: Link: http://www.analog.com/media/en/technical-documentation/data-sheets/AD5310R_5311R.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-08iio: core: check 'info' value before registering the deviceAndi Shyti
When the 'info' structure inside indio_dev is left uninitialized, a segmentation fault occurs. Check the 'info' value before using it and if it is equal to NULL, return with -EINVAL. Signed-off-by: Andi Shyti <andi@etezian.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-03iio: inv_mpu6050: Use i2c_acpi_get_i2c_resource() helperAndy Shevchenko
ACPI provides a generic helper to get I2C Serial Bus resources. Use it instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-03Merge 4.20-rc5 into staging-nextGreg Kroah-Hartman
We need the staging fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-01iio: magnetometer: ak8975: Add the "AKM9911" ACPI HIDStephan Gerhold
This HID is used on the ASUS MeMO Pad 7 (ME176C) tablet. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-12-01staging:iio:ad2s90: Move out of stagingMatheus Tavares
Move ad2s90 resolver driver out of staging to the main tree. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Victor Colombo <victorcolombo@gmail.com> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: imu: st_lsm6dsx: do not use a fixed read len in read_oneshotLorenzo Bianconi
Generalize st_lsm6dsx_shub_read_oneshot in order to not use a fixed read length and take into account iio channel realbits for single read operations Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: hid-sensor-hub: clean up indentation, remove extraneous tabColin Ian King
The statement is indented too much by one level, fix this by removing the extraneous tab. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: adc: stm32-adc: switch off running adc when going to low powerFabrice Gasnier
Switch off ADC when going to low power mode, in case it has been left running in buffer mode. Then re-enable it when resuming. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: adc: stm32-adc: add power management supportFabrice Gasnier
Add support for runtime PM & sleep. Move all regulator and clock management to dedicated HW start/stop routines. Then rely on (runtime) PM OPS to call them. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: adc: stm32-adc: move self-calibration to prepare routineFabrice Gasnier
Move self-calibration routine to prepare routine. - This is precursor patch to ease power management handling. - This also allow to factorize few error cases (error handling). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-IDHans de Goede
Various 2-in-1's use KIOX010A and KIOX020A as HIDs for 2 KXCJ91008 accelerometers. The KIOX010A HID is for the one in the base and the KIOX020A for the accelerometer in the keyboard. Since userspace does not have a way yet to deal with (or ignore) the accelerometer in the keyboard, this commit just adds the KIOX010A HID for now so that display rotation will work. Related: https://github.com/hadess/iio-sensor-proxy/issues/166 Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: potentiometer: Add driver for Microchip MCP41xxx/42xxxChris Coffey
This patch adds driver support for the Microchip MCP41xxx/42xxx family of digital potentiometers: DEVICE Wipers Positions Resistance (kOhm) MCP41010 1 256 10 MCP41050 1 256 50 MCP41100 1 256 100 MCP42010 2 256 10 MCP42050 2 256 50 MCP42100 2 256 100 Datasheet: http://ww1.microchip.com/downloads/en/devicedoc/11195c.pdf Signed-off-by: Chris Coffey <cmc@babblebit.net> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: adc: meson-saradc: fix internal clock namesMartin Blumenstingl
Before this patch we are registering the internal clocks (for example on Meson8b, where the SAR ADC IP block implements the divider and gate clocks) with the following names: - /soc/cbus@c1100000/adc@8680#adc_div - /soc/cbus@c1100000/adc@8680#adc_en This is bad because the common clock framework uses the clock to create a directory in <debugfs>/clk. With such name, the directory creation (silently) fails and the debugfs entry ends up being created at the debugfs root. With this change, the new clock names are: - c1108680.adc#adc_div - c1108680.adc#adc_en This matches the clock naming scheme used in the PWM, Ethernet and MMC drivers. It also fixes the problem with debugfs. The idea is shamelessly taken from commit b96e9eb62841c5 ("pwm: meson: Fix mux clock names"). Fixes: 3921db46a8c5bc ("iio: Convert to using %pOF instead of full_name") Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: adc: meson-saradc: check for devm_kasprintf failureNicholas Mc Guire
devm_kasprintf() may return NULL on failure of internal allocation thus the assignments to init.name are not safe if not checked. On error meson_sar_adc_clk_init() returns negative values so -ENOMEM in the (unlikely) failure case of devm_kasprintf() should be fine here. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: 3adbf3427330 ("iio: adc: add a driver for the SAR ADC found in Amlogic Meson SoCs") Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-25iio: accel: kxcjk-1013: Add the "KXJ2109" ACPI HIDStephan Gerhold
This HID is used on the ASUS MeMO Pad 7 (ME176C) tablet. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-22Merge tag 'iio-for-4.21a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-testing Jonathan writes: First set of new device support, features and cleanups for IIO in the 4.21 cycle Along with the headline feature of 5 new drivers, we have the substantial addition of auxilliary sensor support on the lsm6sdx parts for ST. There has also been a good set of staging cleanup in this period with more underway. An ever increasing number of devices supported with just a new ID which is a good sign that at least some manufacturers are continuing to stabilise their interfaces. New device support, * ad7124 - New driver supporting Analog Devices' ad7124-4 and ad7124-8 parts with the inevitable DT binding. * ad7949 - New driver supporting Analog Devices' ad7949, AD7682 and AD7689 ADCs. * rm3100 - New driver supporting PNIs RM3100 magnometer with bindings and vendor prefix. * ti-dac7311 - New driver supporting DAC7311, DAC6311 and DAC5311 TI DACs, with DT bindings. * vcnl5035 - New driver supporting the light sensor part of the VCNL4035, with DT bindings Features, * bindings - Add a generic ADC channel binding as we keep reinventing this wheel. * adc128s052 - Add IDs for additional pin compatible parts. - Add APCI ID seen on E3940 UP squared boards. * ad_sigma_delta - Allow for custom data register overiding default. * kxcjk1013 - Add KIOX0009 ACPI ID as seen on the Acer One 10. * lsm6dsx - Rework leading to... - External sensor support using the built in I2C master. - Initial support for a slave lis2mdl magnetometer. * meson-saradc - Add temperature sensor support and bindings. * st_magn - New ID for lsm9dsl_magn with bindings - New ID for lis3de accelerometer * tpl0102 - Add supprot for IIO_AVAIL_RANGE to report the range available from this device to userspace and in kernel users. Cleanups and minor fixes * tools - Allow outside specification of CFLAGS * ad2s90 - Handle and spi_read error. - Handle spi_setup failure - Drop a pointless assignment. - Prevent a potentail race by moving device registration to after all other setup. - Add missing scale attribute. - Add a sanity check on channel type before trying to read it. * ad2s1210 - Move to modern gpio descriptors. - Drop a gpioin flag which made no sense as far as we can tell. - Add dt table (bindings doc to follow when this is ready for moving out of staging). * ad5933 - Drop camel-case naming of ext_clk_hz. - White space fixes. * ad7150 - Local variable to shorten overly long line. - Alignment and line break fixes. * ad7280a - Handle an error path that was previously ignored. - Use crc8.h to build the crc table replacing custom code. - Avoid unecessary cast. - Power down the device if an error happens in probe - Use devm routines to simplify probe and remove. * ad7606 - Alignment fixes. * ad7780 - This worked as long as by coincidence an uninitialized value was 0. Lets not rely on that. - Ensure gain update is only used with the ad778x chips that actually support it. - Tidy up pattern mask generation. - Read regulator when scale is requested (which should be infrequent) as it might have changed from initialization. * ad7816 - Move to modern gpio descriptors - Don't use a busy_pin for ad7818 as there isn't one. - Ensure RD/WR and CONVST pins are outputs (previously they were brought up as inputs which doesn't seem to make any sense) - DT id table. * adc128s052 - SPDX * adt7316 - Alignment fix. - Fix data reading. When using I2C the driver never actually used the value read. This has been broken a very long time hence no rush to fix it now + the driver is undergoing a lot of cleanup. - Sanity check that the i2c read didn't fail to actually read anything. * dpot-dac - Mark a switch full through with slightly different text so that gcc doesn't warn on it. * gyro-adc - Fix a wrong file in the MAINTAINERS entry and add binding doc to the listed files. * ina2xx - Add some early returns to clarify error paths in switch. * lsm6dsx - MAINTAINERS entry. * max11100 - SPDX * max9611 - SPDX * mcp4131 - use of_device_get_match_data in preference to spi_get_device_id approach. * rcar-adc - SPDX * sc27xx - Add ADC conversion timeout support to avoid possible fault. * ssp_sensors - Don't free managed resources manually. * st-magn - Add a comment to avoid future confusion over when to use -magn postfix (on multi chip in package parts) - Add BDU register for LIS3MDL where it seems to have been missed. * st-sensors - Minor spelling, grammar etc fixes. * tpl0102 - Use a pointer rather than an index of an array to improve conciseness. * tag 'iio-for-4.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (80 commits) Staging: iio: adt7316: Add an extra check for 'ret' equals to 0 Staging: iio: adt7316: Fix i2c data reading, set the data field dt-bindings: iio: adc: Add docs for ad7124 iio: adc: Add ad7124 support dt-bindings: iio: adc: Add common ADCs properties to a separate file iio: ad_sigma_delta: Allow to provide custom data register address staging: iio: ad7816: Add device tree table. iio: imu: st_lsm6dsx: add entry in MAINTAINERS file iio: potentiometer: mcp4131: use of_device_get_match_data() staging: iio: adc: ad7280a: use devm_* APIs staging: iio: adc: ad7280a: power down the device on error in probe dt-bindings: iio: imu: st_lsm6dsx: add support to i2c pullup resistors iio: imu: st_lsm6dsx: add hw FIFO support to i2c controller iio: imu: st_lsm6dsx: add st_lsm6dsx_push_tagged_data routine iio: imu: st_lsm6dsx: add i2c embedded controller support iio: imu: st_lsm6dsx: introduce st_lsm6dsx_sensor_set_enable routine iio: imu: st_lsm6dsx: introduce ST_LSM6DSX_ID_EXT sensor ids iio: imu: st_lsm6dsx: remove static from st_lsm6dsx_set_watermark iio: imu: st_lsm6dsx: reload trimming parameter at bootstrap iio: imu: st_lsm6dsx: introduce locked read/write utility routines ...
2018-11-17iio: adc: Add ad7124 supportStefan Popa
The ad7124-4 and ad7124-8 are a family of 4 and 8 channel sigma-delta ADCs with 24-bit precision and reference. Three power modes are available which in turn affect the output data rate: * Full power: 9.38 SPS to 19,200 SPS * Mid power: 2.34 SPS to 4800 SPS * Low power: 1.17 SPS to 2400 SPS The ad7124-4 can be configured to have four differential inputs, while ad7124-8 can have 8. Moreover, ad7124 also supports per channel configuration. Each configuration consists of gain, reference source, output data rate and bipolar/unipolar configuration. Datasheets: Link: http://www.analog.com/media/en/technical-documentation/data-sheets/AD7124-4.pdf Link: http://www.analog.com/media/en/technical-documentation/data-sheets/ad7124-8.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-17iio: ad_sigma_delta: Allow to provide custom data register addressLars-Peter Clausen
Some newer devices from the Sigma-Delta ADC family do have their data register at a different address than the current default address. Add a parameter to the ad_sigma_delta_info struct which allows to override the default address. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: potentiometer: mcp4131: use of_device_get_match_data()Slawomir Stepien
Try to get the device's data using OF API. In case of failure, fallback to the spi_get_device_id() method. Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: add hw FIFO support to i2c controllerLorenzo Bianconi
Introduce hw FIFO support to lsm6dsx i2c controller. st_lsm6dsx sensor-hub relies on SLV0 for slave configuration since SLV0 is the only channel that can be used to write into i2c slave devices. SLV{1,2,3} channels are used to read external data and push them into the hw FIFO Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: add st_lsm6dsx_push_tagged_data routineLorenzo Bianconi
Introduce st_lsm6dsx_push_tagged_data routine to push samples to iio buffers. st_lsm6dsx_push_tagged_data will be reused adding hw fifo support to st_lsm6dsx i2c embedded controller in order to improve code readability Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: add i2c embedded controller supportLorenzo Bianconi
i2c controller embedded in lsm6dx series can connect up to four slave devices using accelerometer sensor as trigger for i2c read/write operations. Introduce sensor hub support for lsm6dso sensor. Add register map for lis2mdl magnetometer sensor. In order to perform single read/write operations st_lsm6dsx driver relies on SLV0 channel (hw FIFO is not supported yet) Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: introduce st_lsm6dsx_sensor_set_enable routineLorenzo Bianconi
Add st_lsm6dsx_sensor_set_enable routine and remove st_lsm6dsx_sensor_{enable/disable} ones in order to make the code more readable and remove unnecessary functions Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: introduce ST_LSM6DSX_ID_EXT sensor idsLorenzo Bianconi
Add ST_LSM6DSX_ID_EXT{0,1,2} sensor ids as reference for slave devices connected to st_lsm6dsx i2c controller. Moreover introduce odr dependency between accel and ext devices since i2c embedded controller relies on the accelerometer sensor as bus read/write trigger so we need to enable accel device at odr = max(accel_odr, ext_odr) in order to properly communicate with i2c slave devices Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: remove static from st_lsm6dsx_set_watermarkLorenzo Bianconi
Remove static qualifier from st_lsm6dsx_set_watermark routine in order to be reused supporting st_lsm6dsx i2c controller Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: reload trimming parameter at bootstrapLorenzo Bianconi
Perform a complete device reset at bootstrap reloading trimming parameter after sw reset is completed. Device sw reset/boot is explained here: https://www.st.com/resource/en/application_note/dm00517282.pdf, section 5.7 Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: imu: st_lsm6dsx: introduce locked read/write utility routinesLorenzo Bianconi
Add st_lsm6dsx_update_bits_locked, st_lsm6dsx_read_locked and st_lsm6dsx_write_locked utility routines in order to guarantee the bus access is atomic respect to reg page configuration. This is a preliminary patch to add i2c sensor hub support since i2c master registers are accessed through a reg page multiplexer Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: adc: sc27xx: Add ADC data conversion timeoutFreeman Liu
Sometimes the ADC controller met some problems, and it will not complete the data conversion, that will can not wake up the read process any more to block users. So we should add one maximum conversion time to avoid this issue. Signed-off-by: Freeman Liu <freeman.liu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: magnetometer: Add driver support for PNI RM3100Song Qiang
PNI RM3100 is a high resolution, large signal immunity magnetometer, composed of 3 single sensors and a processing chip with a MagI2C interface. Following functions are available: - Single-shot measurement from /sys/bus/iio/devices/iio:deviceX/in_magn_{axis}_raw - Triggerd buffer measurement. - DRDY pin for data ready trigger. - Both i2c and spi interface are supported. - Both interrupt and polling measurement is supported, depends on if the 'interrupts' in DT is declared. Signed-off-by: Song Qiang <songqiang1304521@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: st-accel: add support for lis3deHeiko Stuebner
This commit add support for STMicroelectronics lis3de accelerometer. Datasheet for this device can be found here: https://www.st.com/resource/en/datasheet/lis3de.pdf Signed-off-by: Heiko Stuebner <heiko.stuebner@bq.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: light: Add support for vishay vcnl4035Parthiban Nallathambi
Add support for VCNL4035, which is capable of Ambient light sensing (ALS) and proximity function. This patch adds support only for ALS function Signed-off-by: Parthiban Nallathambi <pn@denx.de> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: adc: rcar-gyroadc: convert to SPDX identifiersKuninori Morimoto
This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: adc: max11100: convert to SPDX identifiersKuninori Morimoto
This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio: adc: max9611: convert to SPDX identifiersKuninori Morimoto
This patch updates license to use SPDX-License-Identifier instead of verbose license text. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16iio/hid-sensors: Fix IIO_CHAN_INFO_RAW returning wrong values for signed numbersHans de Goede
Before this commit sensor_hub_input_attr_get_raw_value() failed to take the signedness of 16 and 8 bit values into account, returning e.g. 65436 instead of -100 for the z-axis reading of an accelerometer. This commit adds a new is_signed parameter to the function and makes all callers pass the appropriate value for this. While at it, this commit also fixes up some neighboring lines where statements were needlessly split over 2 lines to improve readability. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio: adc: meson-saradc: add support for the chip's temperature sensorMartin Blumenstingl
Channel 6 of the SAR ADC can be switched between two inputs: SAR_ADC_CH6 input (an actual pad on the SoC) and the signal from the temperature sensor inside the SoC. To get usable results from the temperature sensor we need to read the corresponding calibration data from the eFuse and pass it to the SAR ADC registers. If the temperature sensor is not calibrated (the eFuse data contains a bit for this) then the driver will only register the iio_chan_spec's for voltage measurements. This only enables the temperature sensor for the Meson8 SoC. Meson8b and Meson8m2 SoCs can be supported in the future as well but we first need a way to pass the fifth TSC (temperature sensor coefficient) bit to the HHI register area (apart from that the infrastructure as already implemented for Meson8 can be used). On the 64-bit SoCs (GXBB, GXL and GXM) the temperature sensor inside SAR ADC is firmware-controlled (by BL30, we can simply use the SCPI hwmon driver to get the chip temperature). To keep the devicetree interface backwards compatible we simply skip the temperature sensor initialization if no eFuse nvmem cell is passed via devicetree. The public documentation for the SAR ADC IP block does not explain how to use the registers to read the temperature. The logic from this patch is based on reading and understanding Amlogic's GPL kernel sources. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio: potentiometer: tpl0102: add IIO_AVAIL_RANGE supportMatt Ranostay
Report the step range of the respective potentiometers that are possible to userspace. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio:dac:ti-dac7311 Add driver for Texas Instrument DAC7311Charles-Antoine Couret
It is a driver for Texas Instruments 8/10/12-bit 1-channel compatible with DAC6311 and DAC5311 chips. Datasheet of this chip: http://www.ti.com/lit/ds/symlink/dac7311.pdf Signed-off-by: Charles-Antoine Couret <charles-antoine.couret@essensium.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio:magnetometer: st_magn: add BDU settingsMartin Kelly
LIS3MDL and LSM9DS1 are missing BDU settings in their register maps, so add them. I don't have a LIS3MDL sensor to test, but this works correctly on the LSM9DS1, which has the same register map. Signed-off-by: Martin Kelly <martin@martingkelly.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio:magnetometer: st_magn: add LSM9DS1 supportMartin Kelly
Update the sensor settings to support the LSM9DS1 sensor. Although the LSM9DS1 accelerometer and gyroscope are coupled together to use the same FIFO, the magnetometer is separate and can be cleanly supported without refactoring the existing driver. Signed-off-by: Martin Kelly <martin@martingkelly.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11iio: magnetometer: add clarifying commentMartin Kelly
Add a comment clarifying better when to use <device_name> vs <device_name>-magn in compatibility strings. Signed-off-by: Martin Kelly <martin@martingkelly.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>