- 22 Jul, 2017 1 commit
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Narcisa Ana Maria Vasile authored
Add support for CCS811 VOC sensor. This patch adds support for reading current and voltage across the sensor and TVOC and equivalent CO2 values. Scale and offset values have been computed according to datasheet: - For current: raw value is in microamps => 0.001 scale to convert to milliamps - For voltage: 1.65V = 1023, therefore 1650mV = 1023 => 1650.0/1023 = 1.612903 scale to convert to millivolts - For eCO2: raw value range is from 400ppm to 8192ppm. => (val - 400) * (100 - 0) / (8192 - 400) + 0 = (val - 400) * 0.01283367 => offset: -400, scale = 0.012834 to get a percentage value -For TVOC: raw value range is from 0ppb to 1187ppb. => (val - 0) * 100 / (1187 - 0) + 0 = val * 0.0842459 => scale = 0.084246 for getting a percentage value Cc: Daniel Baluta <daniel.baluta@gmail.com> Cc: Alison Schofield <amsfield22@gmail.com> Signed-off-by:Narcisa Ana Maria Vasile <narcisaanamaria12@gmail.com> Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com>
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- 17 Jul, 2017 3 commits
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Stefan Brüns authored
Commit c43a102e ("iio: ina2xx: add support for TI INA2xx Power Monitors") introduced the in_powerY_raw attribute, but omitted the corresponding documentation. The description is correct for the INA2xx and the MAX9611 IIO drivers. Signed-off-by:
Stefan Brüns <stefan.bruens@rwth-aachen.de> Signed-off-by:
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Fabio Estevam authored
The gpiod API checks for NULL descriptors, so there is no need to duplicate the check in the driver. Signed-off-by:
Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by:
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Julia Lawall authored
Drop static on a local variable, when the variable is initialized before any possible use. Thus, the static has no benefit. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // </smpl> Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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- 15 Jul, 2017 4 commits
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Gaurav Gupta authored
When adding maps to the list, they were added using list_add, which adds them in LIFO order. When parsing using iio_channel_get_all(), these elements are hence returned in reverse order. As a result, the iio_hwmon mapping maps the first entry to the last channel and so on. Signed-off-by:
Gaurav Gupta <gauragup@cisco.com> Signed-off-by:
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Fabrice Gasnier authored
This adds support for STM32F4 Digital-To-Analog converter. Add compatible configuration data to handle hfsel (not present in stm32f4). Signed-off-by:
Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by:
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Fabrice Gasnier authored
Fix error message, there's no 'st,dac-channel' property, but 'reg' (see https://lkml.org/lkml/2017/4/3/567). Signed-off-by:
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Fabrice Gasnier authored
Introduce new compatible to support STM32F4 DAC (Digital-To-Analog converter) variant. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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- 10 Jul, 2017 1 commit
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Colin Ian King authored
Don't populate array startup_lookup on the stack but instead make it static. Makes the object code smaller. Before: text data bss dec hex filename 21754 5440 128 27322 6aba drivers/iio/adc/at91_adc.o After: text data bss dec hex filename 21613 5496 128 27237 6a65 drivers/iio/adc/at91_adc.o Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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- 09 Jul, 2017 15 commits
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Lorenzo Bianconi authored
In order to use the standard name convention rename H3LIS331DL_DRIVER_NAME macro in H3LIS331DL_ACCEL_DEV_NAME Signed-off-by:
Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by:
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Lorenzo Bianconi authored
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Lorenzo Bianconi authored
Add H3LIS331DL, LIS331DL and LIS3LV02DL entries in st_accel_id_table Fixes: 1e52fefc (iio: accel: Add support for the h3lis331dl accel) Fixes: bbf5f037 (iio: st_accel: support the LIS331DL sensor) Fixes: 3acddf74 (iio: st-sensors: add support for lis3lv02d accel) Signed-off-by:
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Colin Ian King authored
Making the const array startup_lookup static rather having it on the stack saves 69 bytes. Add in missing int specifier to clean up a checkpatch warning. Before: text data bss dec hex filename 10297 2800 128 13225 33a9 drivers/iio/adc/at91-sama5d2_adc.o After: text data bss dec hex filename 10140 2888 128 13156 3364 drivers/iio/adc/at91-sama5d2_adc.o Signed-off-by:
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Colin Ian King authored
Making the const array init_data static rather having it on the stack saves us a couple hundreds of bytes: Before: text data bss dec hex filename 3175 848 0 4023 fb7 drivers/iio/accel/da311.o After: text data bss dec hex filename 2860 936 0 3796 ed4 drivers/iio/accel/da311.o Signed-off-by:
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Gustavo A. R. Silva authored
Check return value from call to of_match_device() in order to prevent a NULL pointer dereference. In case of NULL print error message and return -ENODEV Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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Gustavo A. R. Silva authored
Check return value from call to of_match_device() in order to prevent a NULL pointer dereference. In case of NULL print error message and return -ENODEV Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by:
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Brian Masney authored
The return value from tsl2x7x_invoke_change() was not checked in most places in the driver. This patch adds the proper error checks. The return values inside tsl2x7x_invoke_change() are now checked by this patch as well. Previously, if there was an error turning the chip back on, then the driver would attempt to turn the chip off and incorrectly return success. The code to power off the chip is removed by this patch since we should fail fast. Signed-off-by:
Brian Masney <masneyb@onstation.org> Signed-off-by:
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Brian Masney authored
This driver in some cases can busy wait for upwards of 15ms. Since the kernel at this point is not running in atomic context, and is running in process context, we can safely use usleep_range() instead. This patch changes the two occurrences of mdelay() to usleep_range(). Signed-off-by:
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Brian Masney authored
tsl2x7x_read_thresh() and tsl2x7x_write_thresh() currently assumes that IIO_EV_INFO_VALUE is the only iio_event_info that will be passed in. This patch refactors these two functions so that additional iio_event_infos can be passed in. The functions are renamed from tsl2x7x_{read,write}_thresh() to tsl2x7x_{read,write}_event_value(). This patch also adds the missing return value check to tsl2x7x_invoke_change() since this was previously missing. This patch is in preparation for moving the in_intensity0_thresh_period and in_proximity0_thresh_period sysfs attributes to be created by iio_event_spec. Signed-off-by: -
Brian Masney authored
The calibration function calls i2c_smbus_write_byte() and i2c_smbus_read_byte(). These two function calls are replaced with a single call to i2c_smbus_read_byte_data() by this patch. This patch also removes an unnecessary call that reads the CNTRL register a second time. One of the error paths returned -1 if the ADC was not enabled and this patch changes that return value to -EINVAL. Signed-off-by:
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Brian Masney authored
tsl2x7x_i2c_read() would call i2c_smbus_write_byte() and i2c_smbus_read_byte(). These two i2c functions can be replaced with a single call to i2c_smbus_read_byte_data(). This patch removes the tsl2x7x_i2c_read() function and replaces all occurrences with a call to i2c_smbus_read_byte_data(). Signed-off-by:
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Brian Masney authored
The TSL2X7X driver has a custom power_state sysfs attribute. Remove this attribute since the runtime power management code provides a sysfs attribute to control the power state of the device. Signed-off-by:
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Brian Masney authored
Add device tree support for the tsl2x7x IIO driver with no custom properties. The device tree documentation is in a separate commit so that the changes to trivial-devices.txt can go in via the device tree subsystem. Signed-off-by:
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Jack Andersen authored
This patch adds support for Diolan DLN2 ADC via IIO's ADC interface. ADC is the fourth and final component of the DLN2 for the kernel. Signed-off-by:
Jack Andersen <jackoalan@gmail.com> Signed-off-by:
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- 06 Jul, 2017 1 commit
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Joe Perches authored
Add newlines to the macro definitions and use a more common style. Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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- 04 Jul, 2017 2 commits
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Mike Looijmans authored
The LTC2741 and LTC2473 are single voltage ADC chips. The LTC2473 is similar to the LTC2471 but outputs a signed differential value. Datasheet: http://cds.linear.com/docs/en/datasheet/24713fb.pdfSigned-off-by:
Mike Looijmans <mike.looijmans@topic.nl> Reviewed-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
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Mikko Koivunen authored
Set up and use triggered buffer if there is irq defined for device in device tree. Trigger producer triggers from rpr0521 drdy interrupt line. Trigger consumer reads rpr0521 data to scan buffer. Depends on previous commits of _scale and _offset. Signed-off-by:
Mikko Koivunen <mikko.koivunen@fi.rohmeurope.com> Signed-off-by:
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- 02 Jul, 2017 12 commits
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Reno Farnesi authored
This patch fixes the following checkpatch warnings: Prefer 'unsigned int' to bare use of 'unsigned Signed-off-by:
Reno Farnesi <nfarnesi4@gmail.com> Signed-off-by:
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Lorenzo Bianconi authored
Add device tree support for LPS22HB, LPS25H, LPS331AP, LPS001WP pressure sensors Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Lorenzo Bianconi authored
Add device tree support for L3G4200D, LSM330D, LSM330DL, LSM330DLC, L3GD20, L3GD20H, L3G4IS, LSM330, LSM9DS0 gyroscope sensors Signed-off-by:
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Lorenzo Bianconi authored
Add device tree support for LIS3MDL and LSM303AGR magnetometer sensors Signed-off-by:
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Lorenzo Bianconi authored
Add device tree support for LIS3DH, LSM330D, LSM330DL, LSM330DLC, LIS331DLH, LSM330, LSM303AGR, LIS2DH12, LIS3L02DQ, LNG2DM accel sensors. Fix LIS302DL support defining of_device_id data field in st_accel_of_match table Fixes: 76222772 (iio: accel: st_accel: handle deprecated bindings) Signed-off-by:
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Matthias Kaehlcke authored
Don't inflate the kernel size with data that isn't used. The conditional declaration also fixes the following warning when building with clang: drivers/iio/magnetometer/ak8975.c:704:36: error: variable 'ak_acpi_match' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration] Signed-off-by:
Matthias Kaehlcke <mka@chromium.org> Acked-by:
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Reno Farnesi authored
Removes trailing whitespace to fix checkpatch errors Signed-off-by:
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Gaurav Gupta authored
Add missing hooks in the LTC2497 IIO driver to allow hwmon mapping. Signed-off-by:
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Colin Ian King authored
The array stm32h7_adc_ckmodes_spec does not need to be in global scope, so make it static. Cleans up sparse warning: "symbol 'stm32h7_adc_ckmodes_spec' was not declared. Should it be static?" Signed-off-by:
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Angelo Compagnucci authored
Some part of the configuration are not touched after the probe and if something goes wrong on writing the initial one, the chip will misbehave. Adding an error checking ensures that the inital configuration will be written correctly. Moreover ensures that a sensible configuration will be saved in driver data and used subsequently as intended. Signed-off-by:
Angelo Compagnucci <angelo.compagnucci@gmail.com> Reported-by:
Maarten Brock <m.brock@vanmierlo.com> Signed-off-by:
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Angelo Compagnucci authored
Initial channel should be the first available channel on all configurations, so changing to channel 0 available on all supported chips. Signed-off-by:
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Linus Walleij authored
Open drain should work fine with rising or high level IRQs, this code was due to some misunderstanding on my part. Reported-by:
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by:
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- 01 Jul, 2017 1 commit
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Akinobu Mita authored
Add a link to the TCS3472 datasheet in the AMS's website. Cc: Peter Meerwald <pmeerw@pmeerw.net> Cc: Jonathan Cameron <jic23@kernel.org> Signed-off-by:
Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by:
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