In order to avoid unnecessary pollution of the global symbol namespace
move the core mma7455 functions into an mma7455 specific namespace and
import that into the two bus modules.
For more information see https://lwn.net/Articles/760045/
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20220116180535.2367780-3-jic23@kernel.org
This chip is not an ST part, but it appears to be register-compatible
with the LIS2DH, so it can use the same binding.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220202235049.8051-3-samuel@sholland.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Hangzhou Silan Microelectronics Co., Ltd. (http://www.silan.com.cn/) is
a manufacturer of ICs, including MEMS sensors.
Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220202235049.8051-2-samuel@sholland.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220202204112.57095-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The mma8452_driver declares both of_match_table and i2c_driver.id_table
match-tables, but its probe() function only checked for of matches.
Add support for i2c_device_id matches. This fixes the driver not loading
on some x86 tablets (e.g. the Nextbook Ares 8) where the i2c_client is
instantiated by platform code using an i2c_device_id.
Drop of_match_ptr() protection to avoid unused warning.
Fixes: c3cdd6e48e ("iio: mma8452: refactor for seperating chip specific data")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220208124336.511884-1-hdegoede@redhat.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The variable cal_data_diff is being assigned a value that is never read,
it is being re-assigned later on with a new value in both paths of an
if statement. The assignment is redundant, so remove it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220207135943.340629-1-colin.i.king@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Instead of checking for ACPI handle followed by extracting a companion
device, do the latter first and use it for checks.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220203155920.18586-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
ACPI_PTR() is more harmful than helpful. For example, in this case
if CONFIG_ACPI=n, the ID table left unused which is not what we want.
Instead of adding ifdeffery or attribute here and there, drop ACPI_PTR().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220203155920.18586-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The atmel,trigger-edge-type was never imposed by the driver.
Make things right and remove this property from the mandatory list.
This will not break existing nodes because according to the binding they
should have this property.
However, the driver does not impose it and it works without it, the property
selects the trigger type, and without it, the driver will have no trigger
available, which is the case on some boards which do not have access
to the trigger pin.
This will avoid generating this warning for example:
*/arch/arm/boot/dts/at91-sama7g5ek.dt.yaml: adc@e1000000: 'atmel,trigger-edge-type' is a required property
From schema: */Documentation/devicetree/bindings/iio/adc/atmel,sama5d2-adc.yaml
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211217095401.583821-1-eugen.hristev@microchip.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Includes should be ordered alphabetically which is already the case,
but follow what is done in other drivers by separation IIO specific
headers with a blank line.
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-6-liambeguin@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
All four scaling coefficients can take signed values.
Make tmp a signed 64-bit integer and switch to div_s64() to preserve
signs during 64-bit divisions.
Fixes: 8b74816b5a ("iio: afe: rescale: new driver")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-5-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
iio_convert_raw_to_processed_unlocked() assumes the offset is an
integer. Make a best effort to get a valid offset value for fractional
cases without breaking implicit truncations.
Fixes: 48e44ce0f8 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-4-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When a consumer calls iio_read_channel_processed() and no channel scale
is available, it's assumed that the scale is one and the raw value is
returned as expected.
On the other hand, if the consumer calls iio_convert_raw_to_processed()
the scaling factor requested by the consumer is not applied.
This for example causes the consumer to process mV when expecting uV.
Make sure to always apply the scaling factor requested by the consumer.
Fixes: adc8ec5ff1 ("iio: inkern: pass through raw values if no scaling")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-3-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
When a consumer calls iio_read_channel_processed() and the channel has
an integer scale, the scale channel scale is applied and the processed
value is returned as expected.
On the other hand, if the consumer calls iio_convert_raw_to_processed()
the scaling factor requested by the consumer is not applied.
This for example causes the consumer to process mV when expecting uV.
Make sure to always apply the scaling factor requested by the consumer.
Fixes: 48e44ce0f8 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-2-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
x86 boards may use ACPI HID "TXNW1010" for the hdc100x device.
TI told us "The ACPI ID for TI is: https://uefi.org/node/1028 (TXNW),
therefore it would most likely be appropriate to use TXNW1010."
So add an ACPI match table for that accordingly.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220128042054.2062060-1-kai.heng.feng@canonical.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
x86 boards may use ACPI HID "IFX3100" for the dps310 device.
Vendor told us feel free to add the ID and contact
"Saumitra.Chafekar@infineon.com" for further questions.
So add an ACPI match table for that accordingly.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20220128023144.2050615-1-kai.heng.feng@canonical.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To convert SX9360 status register ["REG_STAT"], into a channel
index, we need to right shift by |stat_offset|, not left shift.
Also the PROXSTAT bit (3) is for channel 1 (PHM, Phase Measured), not (PHR,
Phase Reference, channel 0), so the offset is 2 instead of 3.
Fixes: 1cdb4c47f7 ("iio:proximity:sx9360: Add sx9360 support")
Signed-off-by: Jongpil Jung <jongpil19.jung@samsung.com>
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20220122213444.745152-1-gwendal@chromium.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Introduce a macro to produce data types like
struct TYPE_fract {
__TYPE numerator;
__TYPE denominator;
};
to be used in the code wherever it's needed.
In the following changes convert some users to it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220126135353.24007-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
The QCom SPMI PMIC child nodes are defined to have a single address cell,
but the example has an erroneous size cell. Remove it.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220126231217.1633935-1-robh@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To avoid problematic devicetree configurations. Set allocation limit
with error message and suggestion on what can be done to solve this
issue.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/20220117082852.3370869-2-o.rempel@pengutronix.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Make use of the struct_size() helper instead of an open-coded version,
in order to avoid any potential type mistakes or integer overflows that,
in the worst scenario, could lead to heap overflows.
Also, address the following sparse warnings:
drivers/iio/buffer/industrialio-hw-consumer.c:63:23: warning: using sizeof on a flexible structure when using CF='-Wflexible-array-sizeof'
Link: https://github.com/KSPP/linux/issues/174
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220120225243.GA37225@embeddedor
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Minor stylistic changes to address checkptach complains when called with
'--strict'.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220122130905.99-3-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
There's no need to use '__builtin_choose_expr' to choose the right
call to 'adis_update_bits_base()'. We can change the 'BUILD_BUG_ON()'
condition so that it makes sure only the supported sizes are
passed in. With that, we can just use 'sizeof(val)' as the size argument
of 'adis_update_bits_base()'.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220122130905.99-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it
knows about the sysfs buffer specifics and has some built-in checks for
size and alignment.
Use sysfs_emit() to format the custom `cleaning_period` device attribute of
the sps30 driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211216185217.1054495-14-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
sysfs_emit() is preferred over raw s*printf() for sysfs attributes since it
knows about the sysfs buffer specifics and has some built-in checks for
size and alignment.
Use sysfs_emit() to format the custom `calibration_auto_enable` device
attribute of the scd4x driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211216185217.1054495-13-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
