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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>
2018-11-16staging: iio: ad7780: generates pattern_mask from PAT bitsGiuliano Belinassi
Previously, all pattern_masks and patterns in the chip_info table were hardcoded. Now they are generated using the PAT macros, as described in the datasheets. Signed-off-by: Giuliano Belinassi <giuliano.belinassi@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-16staging: iio: ad7780: check if ad778x before gain updateGiuliano Belinassi
Only the ad778x have the 'gain' status bit. Check it before updating through a new variable is_ad778x in chip_info. Signed-off-by: Giuliano Belinassi <giuliano.belinassi@usp.br> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad7816: Set RD/WR pin and CONVST pin as outputs.Nishad Kamdar
The RD/WR pin and CONVST pin are logical inputs to the AD78xx chip as per the datasheet. Hence convert them to outputs. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad7816: Do not use busy_pin in case of AD7818Nishad Kamdar
AD7818 does not support busy_pin functionality as per datasheet. Hence drop busy_pin when AD7818 is used. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> 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>
2018-11-11staging:iio:ad2s90: Check channel type at read_rawMatheus Tavares
This patch adds a channel type check at the beginning of the ad2s90_read_raw function. Since ad2s90 has only one channel, it just checks if the given channel is the expected one and if not, return -EINVAL. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging:iio:ad2s90: Add IIO_CHAN_INFO_SCALE to channel spec and read_rawVictor Colombo
This patch adds the IIO_CHAN_INFO_SCALE mask to ad2s90_chan and implements the relative read behavior at ad2s90_read_raw. Signed-off-by: Victor Colombo <victorcolombo@gmail.com> Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging:iio:ad2s90: Move device registration to the end of probeMatheus Tavares
Previously, devm_iio_device_register was being called before the spi_setup call and the spi_device's max_speed_hz and mode assignments. This could lead to a race condition since the driver was still being set up after it was already made ready to use. To fix it, this patch moves the device registration to the end of ad2s90_probe. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging:iio:ad2s90: Remove always overwritten assignmentMatheus Tavares
This patch removes an initial assignment to the variable ret at probe, that was always overwritten. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging:iio:ad2s90: Make probe handle spi_setup failureMatheus Tavares
Previously, ad2s90_probe ignored the return code from spi_setup, not handling its possible failure. This patch makes ad2s90_probe check if the code is an error code and, if so, do the following: - Call dev_err with an appropriate error message. - Return the spi_setup's error code. Note: The 'return ret' statement could be out of the 'if' block, but this whole block will be moved up in the function in the patch: 'staging:iio:ad2s90: Move device registration to the end of probe'. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging:iio:ad2s90: Make read_raw return spi_read's error codeMatheus Tavares
Previously, when spi_read returned an error code inside ad2s90_read_raw, the code was ignored and IIO_VAL_INT was returned. This patch makes the function return the error code returned by spi_read when it fails. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad7780: fix offset read valueRenato Lui Geh
Variable val subtracted an uninitialized value on IIO_CHAN_INFO_OFFSET. This was fixed by assigning the correct value instead. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad2s1210: Add device tree table.Nishad Kamdar
Add device tree table for matching vendor ID. Note that as the driver is still heavily in flux and there are some non obvious aspects to a comprehensive binding, that binding will be submitted at a later date (before leaving staging!) Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad2s1210: Drop the gpioin flag.Nishad Kamdar
Drop gpioin flag which decides how the GPIOs are controlled as the GPIOs must be outputs for the host as per the datasheet. Removes need for platform data so that is dropped as well. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-11staging: iio: ad2s1210: Switch to the gpio descriptor interfaceNishad Kamdar
Use the gpiod interface instead of the deprecated old non-descriptor interface. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.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>
2018-11-11staging: iio: adc: ad7280a: don't cast type inside switch expressionSlawomir Stepien
The type promotion will kick in, so the comparison will work. Signed-off-by: Slawomir Stepien <sst@poczta.fm> 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>
2018-11-11iio: potentiometer: tpl0102: switch to using pointer to chip configMatt Ranostay
More concise to have a pointer to tpl0102_cfg struct in the iio_priv data than an integer to an index of an array. Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com> Reviewed-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03iio:adc:ad7949: Add AD7949 ADC driver familyCharles-Antoine Couret
Compatible with AD7682 and AD7689 chips. It is a Analog Devices ADC driver 14/16 bits 4/8 channels with SPI protocol Datasheet of the device: http://www.analog.com/media/en/technical-documentation/data-sheets/AD7949.pdf Signed-off-by: Charles-Antoine Couret <charles-antoine.couret@essensium.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03staging: iio: ad5933: Remove unnecessary blank lineVictor Colombo
This patch fixes the checkpatch.pl warning: WARNING: Blank lines aren't necessary before a close brace '}' Signed-off-by: Victor Colombo <victorcolombo@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03staging: iio: ad5933: Remove unnecessary space on castingVictor Colombo
This patch fixes the checkpatch.pl warning: WARNING: No space is necessary after a cast Signed-off-by: Victor Colombo <victorcolombo@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03iio: adc128s052: use SPDX-License-IdentifierDan O'Donovan
This updates the ti-adc128s052.c file to use SPDX-License-Identifier instead of more verbose license text. Signed-off-by: Dan O'Donovan <dan@emutex.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03iio: adc128s052: add ACPI _HID AANT1280Nicola Lunghi
ACPI _HID AANT1280 matches an ADC124S101 present on E3940 SKUs of the UP Squared board. Add it to the driver. Signed-off-by: Nicola Lunghi <nicola.lunghi@emutex.com> [javier@emutex.com: fix up commit message and one checkpatch warning] Signed-off-by: Javier Arteaga <javier@emutex.com> Signed-off-by: Dan O'Donovan <dan@emutex.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-11-03iio: adc128s052: Add pin-compatible IDsJavier Arteaga
The datasheets for ADC122S021 and ADC124S021 list two more pin-compatible alternatives for each device. Add their IDs as compatible strings. Suggested-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Javier Arteaga <javier@emutex.com> Signed-off-by: Dan O'Donovan <dan@emutex.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21staging: iio: ad7816: Switch to the gpio descriptor interfaceNishad Kamdar
Use the gpiod interface for rdwr_pin, convert_pin and busy_pin instead of the deprecated old non-descriptor interface. Note that Phil Reid identified that some of this code would never have worked. A follow up patch can fix that as this is just a direct change of interface. Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21iio: adc: ina2xx: add in early -EINVAL returns in case statementsColin Ian King
Static analysis with CoverityScan is throwing warnings that specific case statements are missing breaks. Rather than adding breaks, add return -EINVAL to the specific case statements to clarify the error return paths. Fix also saves 50 bytes. Before: text data bss dec hex filename 21418 4936 128 26482 6772 drivers/iio/adc/ina2xx-adc.o After: dec hex filename 21370 4936 128 26434 6742 drivers/iio/adc/ina2xx-adc.o (gcc 8.2, x86-64) Detected by CoverityScan, CID#1462408 ("Missing break in switch") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21Staging:iio:adc:ad7606: Match parenthesis alignmentMarcelo Schmitt
Change close parenthesis alignment to match respective open parenthesis at iio/drivers/staging/iio/adc/ad7606.c line 379. This makes the file more compliant with the preferred coding style for the linux kernel. Signed-of-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21iio: st_sensors: miscellaneous cleanupMartin Kelly
Miscellaneous cleanup to fix minor consistency, grammar, and spelling issues. Signed-off-by: Martin Kelly <martin@martingkelly.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21staging: iio: adc: ad7280a: use crc8.h API to build crc tableSlawomir Stepien
The custom build function ad7280_crc8_build_table is not needed. The crc8_populate_msb function from linux/crc8.h will build the same crc table. Signed-off-by: Slawomir Stepien <sst@poczta.fm> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-21staging: iio: adc: ad7280a: handle error from __ad7280_read32()Slawomir Stepien
Inside __ad7280_read32(), the spi_sync_transfer() can fail with negative error code. This change will ensure that this error is being passed up in the call stack, so it can be handled. Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-14iio: accel: kxcjk1013: Add KIOX0009 ACPI Hardware-IDHans de Goede
Add KIOX0009 ACPI HID, this is used e.g. on the Acer One 10. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-14staging: iio: adt7316: fix parenthesis alignmentRenato Lui Geh
This patch fixes most "Alignment should match open parenthesis" check warnings found by checkpatch.pl in the addac/adt7316 driver. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-14iio: dpot-dac: mark expected switch fall-through with text GCC expects.Gustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that in this particular case, I replaced "...and fall through." with the specific string "fall through", which is what GCC is expecting to find thus supressing this false positive. As Peter has observed this breaks the nice English flow, which is less than ideal, but short of teaching GCC to read English, there isn't a lot that we can do about it. Addresses-Coverity-ID: 1462408 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-08staging: iio: ad2s1210: fix 'assignment operator' style checksMatheus Tavares
This patch fixes all "Assignment operator '=' should be on the previous line" checks found in ad2s1210.c with checkpatch.pl. Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-07staging: iio: cdc: ad7150: fix misaligned linesSlawomir Stepien
These lines were misaligned, but the checkpatch.pl didn't indicate them as such. Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-07staging: iio: cdc: ad7150: use value copy to shorten the line lengthSlawomir Stepien
By using the copy of channel attribute, we can now make the lines short enough to eliminate the checkpatch.pl problem: CHECK: Alignment should match open parenthesis Signed-off-by: Slawomir Stepien <sst@poczta.fm> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-07iio: ssp_sensors: don't manually free devm managed resourcesUwe Kleine-König
The charme of devm_* functions is that you don't need to care about them in the error path. In this case it is valid to just return NULL which makes the device fail to probe and then the two gpios and the allocated memory are freed automatically by the driver core. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-07staging: iio: ad5933: rename ext_clk_Hz -> ext_clk_hzAlexandru Ardelean
The checkpatch script doesn't like camel-case names. Renamed the variable. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-10-03staging: rtl8712: add SPDX identifiersMichael Straube
This satisfies a checkpatch warning and is the preferred method for notating the license. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-03staging: fbtft: Prefer using the BIT macroMamta Shukla
Replacing all occurrences of (1<<x) with BIT(x) to fix checkpatch issue. CHECK:Prefer using the BIT macro Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-02staging: rtl8188eu: fix spelling mistake in commentMichael Straube
Fix a spelling mistake reported by checkpatch. Caculate -> Calculate Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-02staging: rtl8188eu: remove braces from single if statementMichael Straube
Remove braces from single line if statement. Reported by checkpatch. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-02staging: rtl8188eu: remove unnecessary parentheses in odm_rtl8188e.cMichael Straube
Remove unnecessary parentheses in odm_rtl8188e.c. Reported by checkpatch. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-02staging: rtl8188eu: add spaces around '+' in fw.cMichael Straube
Add spaces around '+' in fw.c to follow kernel coding style. Reported by checkpatch. Signed-off-by: Michael Straube <straube.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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