- 22 Jan, 2017 23 commits
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Alison Schofield authored
In iio_trigger_write_current() we find the trigger we want while holding mutex on the list of triggers, but we don't actually do a get on it while holding mutex. We wait until further validations are completed and we're sure it's the one we want. Race condition is that it could be freed by the time we do the get. Solution is to grab the trigger (iio_trigger_get) as soon as we find it while holding mutex on the list of triggers. If later we decide it's not the right one, put it back. (iio_trigger_put). Signed-off-by:
Alison Schofield <amsfield22@gmail.com> Suggested-by:
Lars-Peter Clausen <lars@metafoo.de> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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Lorenzo Bianconi authored
Signed-off-by:
Lorenzo Bianconi <lorenzo.bianconi@st.com> Signed-off-by:
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Brian Masney authored
This patch adds runtime power management support to the isl29028 driver. It defaults to powering off the device after two seconds of inactivity. isl29028_chip_init_and_power_on() currently only zeros the CONFIGURE register on the chip, which will cause the chip to turn off. This patch also renames that function to isl29028_clear_configure_reg() since it is now used in several places. Signed-off-by:
Brian Masney <masneyb@onstation.org> Signed-off-by:
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Brian Masney authored
isl29028_chip_init_and_power_on() calls isl29028_set_als_scale() and this is not needed until the user actually needs to take a reading from the ALS/IR sensor. This patch moves the isl29028_set_als_scale() call from isl29028_chip_init_and_power_on() to isl29028_set_als_ir_mode(). This sets the stage for faster resume times from runtime power management if the user is only querying the proximity sensor. Signed-off-by:
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Brian Masney authored
isl29028_chip_init_and_power_on() calls isl29028_set_proxim_sampling() and this is not needed until the user actually needs to take a proximity reading. This patch moves the isl29028_set_proxim_sampling() call from isl29028_chip_init_and_power_on() to isl29028_enable_proximity(). This sets the stage for faster resume times from the runtime power management if the user is only querying the ALS/IR sensor. Signed-off-by:
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Brian Masney authored
isl29028_enable_proximity() has a boolean argument named enable. This function is only called once and the enable flag is set to true in that call. This patch removes the enable parameter from that function. Signed-off-by:
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Brian Masney authored
isl29028_write_raw() contains unnecessary parenthesis when checking to see if the passed in lux scale is valid. This patch removes the unnecessary parenthesis. Signed-off-by:
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Brian Masney authored
If the call to devm_iio_device_alloc() fails, then isl29028_probe() logs a message saying that memory cannot be allocated. The user's system most likely has larger issues at this point. This patch removes that error message since the error code is passed on and the message is not necessary. Signed-off-by:
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Brian Masney authored
If the call to isl29028_chip_init_and_power_on() in isl29028_probe() fails, then isl29028_probe() will log an error message. All of the error paths in that call path already have error logging in place. This patch removes the unnecessary logging. Signed-off-by:
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Brian Masney authored
The wording and style of the different error messages was not consistent. This patch makes the wording and style consistent throughout the driver. Signed-off-by:
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Brian Masney authored
When isl29028_set_als_scale() fails, it was up to both callers to log the failure message. This patch moves the logging into isl29028_set_als_scale() to reduce the overall amount of code in the driver. Signed-off-by:
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Brian Masney authored
When isl29028_set_proxim_sampling() fails, it was up to both callers to log the failure message. This patch moves the logging into isl29028_set_proxim_sampling() to reduce the overall amount of code in the driver. Signed-off-by:
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Brian Masney authored
The #define ISL29028_DEV_ATTR was not used so this patch removes the unnecessary code. Signed-off-by:
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Brian Masney authored
Add and remove newlines to improve code readability in preparation for moving the driver out of staging. Signed-off-by:
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Brian Masney authored
The alignment of the variables in the struct isl29028_chip is not consistent. This changes all of the variables to use consistent alignment to improve the code readability. Signed-off-by:
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Brian Masney authored
isl29028_proxim_get() checks to see if the promixity needs to be enabled on the chip and then calls isl29028_read_proxim(). There are no other callers of isl29028_read_proxim(). The naming between these two functions can be confusing so this patch combines the two to avoid the confusion. Signed-off-by:
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Brian Masney authored
Two separate calls to regmap_update_bits() in isl29028_set_als_scale() and isl29028_set_als_ir_mode() did not have their function arguments on the next line aligned correctly to the open parenthesis. This patch corrects the alignment. Signed-off-by:
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Javier Martinez Canillas authored
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the device was registered via OF, this means that exporting the OF device ID table device aliases in the module is not needed. But in order to change how the core reports modaliases to user-space, it's better to export it. Signed-off-by:
Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by:
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Javier Martinez Canillas authored
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the device was registered via OF, this means that exporting the OF device ID table device aliases in the module is not needed. But in order to change how the core reports modaliases to user-space, it's better to export it. Signed-off-by:
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Javier Martinez Canillas authored
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the device was registered via OF, this means that exporting the OF device ID table device aliases in the module is not needed. But in order to change how the core reports modaliases to user-space, it's better to export it. Signed-off-by:
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Nicholas Mc Guire authored
ulseep_range() uses hrtimers and provides no advantage over msleep() for larger delays. Fix up the 35ms delays here to use msleep() and reduce the load on the hrtimer subsystem. Fixes: commit 4d33615d ("iio: light: add MAX30100 oximeter driver support") Link: http://lkml.org/lkml/2017/1/11/377Signed-off-by:
Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by:
Matt Ranostay <matt.ranostay@konsulko.com> Signed-off-by:
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Phil Reid authored
This adds TI's tlc4541 16-bit ADC driver. Which is a single channel ADC. Supports raw and trigger buffer access. Also supports the tlc3541 14-bit device, which has not been tested. Implementation of the tlc3541 is fairly straight forward thou. Acked-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Phil Reid <preid@electromag.com.au> Signed-off-by:
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Jacopo Mondi authored
Add device tree bindings documentation for Maxim MAX11100 single-channel ADC Signed-off-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by:
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- 21 Jan, 2017 6 commits
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Jacopo Mondi authored
Add iio driver for Maxim MAX11100 single-channel ADC. Signed-off-by:
Marek Vasut <marek.vasut@gmail.com> Signed-off-by:
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Alison Schofield authored
Replace the types with the actual variable names when using the sizeof() operator. This is kernel preferred style as it's more obvious that it is correct. Signed-off-by:
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Arnd Bergmann authored
When CONFIG_PM_SLEEP is disabled, we get a harmless warning drivers/iio/light/cm3605.c:292:12: error: 'cm3605_pm_resume' defined but not used [-Werror=unused-function] drivers/iio/light/cm3605.c:281:12: error: 'cm3605_pm_suspend' defined but not used [-Werror=unused-function] Marking the functions as possibly unused avoids the warning without needing to add an #ifdef. Fixes: 8afa505c ("iio: light: add driver for Capella CM3605") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Alison Schofield authored
Driver was checking for direct mode before changing oversampling ratios, but was not locking it. Use the claim/release helper functions to guarantee the device stays in direct mode while the oversampling ratios are being updated. Continue to use the drivers private state lock to protect against conflicting direct mode access of the state data. Signed-off-by:
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Alison Schofield authored
Driver was checking for direct mode but not locking it. Use the claim/release helper functions to guarantee the device stays in direct mode during raw reads of proximity data. Signed-off-by:
Vlad Dogaru <ddvlad@gmail.com> Signed-off-by:
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Alison Schofield authored
Driver was checking for direct mode but not locking it. Use claim/release helper functions to guarantee the device stays in direct mode during raw writes. Signed-off-by:
Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by:
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- 15 Jan, 2017 3 commits
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David Lechner authored
This changes the reference voltage regulator matching string from "refin" to "vref". This is to be consistent with other A/DC chips that also use "vref-supply" in their device tree bindings. Signed-off-by:
David Lechner <david@lechnology.com> Signed-off-by:
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David Lechner authored
This drops the "ti-" prefix from the module name. It makes the module name consistent with other iio ti-ads* drivers and it makes the driver work with device tree (the spi subsystem drops the "ti," prefix when matching compatible strings from device tree). Tested working on LEGO MINDSTORMS EV3 with the following device tree node: adc@3 { compatible = "ti,ads7957"; reg = <3>; #io-channel-cells = <1>; spi-max-frequency = <10000000>; vref-supply = <&adc_ref>; }; Signed-off-by: -
David Lechner authored
This adds device tree bindings for the TI ADS7950 family of A/DC chips. Signed-off-by:
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- 14 Jan, 2017 6 commits
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Colin Ian King authored
At the end of the delay loop timeout will always be zero and hence the check for !timeout will always be true. Remove the redundant check and the redundant return 0 at the end of the function. Fixes CoverityScan CID#1357168 ("Logically dead code") Signed-off-by:Colin Ian King <colin.king@canonical.com> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Enric Balletbo i Serra authored
To follow iio guidelines Where possible we stick to the raw SI unit, so specify meters for proximity. Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
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Lorenzo Bianconi authored
Acked-by:
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Lorenzo Bianconi authored
Add support to STM LSM6DS3-LSM6DSM 6-axis (acc + gyro) Mems sensor http://www.st.com/resource/en/datasheet/lsm6ds3.pdf http://www.st.com/resource/en/datasheet/lsm6dsm.pdf - continuous mode support - i2c support - spi support - sw fifo mode support - supported devices: lsm6ds3, lsm6dsm Signed-off-by:
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Linus Walleij authored
When a consumer calls iio_read_channel_processed() the IIO core tries to apply scaling to the value, but if the channel only supports reading raw values, we should return that raw value to the cosumer instead of an error. This is what userspace is expected to do with sensors only providing raw values so the kernel should do the same, so as to avoid adding scaling boilerplate to drivers for hardware that actually return processed values from raw reads. A sensor not providing a scale, but providing a _raw attribute could be valid if for example the scale is the default of 1, but an offset needs to be applied to convert to the _processed form. Signed-off-by:
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Manivannan Sadhasivam authored
This patch adds support for TI TMP007 - 16 bit IR thermopile sensor with integrated Math engine. Sensor takes care of calculating the object temperature with the help of calibrated constants stored in non-volatile memory, thereby reducing the calculation overhead. Signed-off-by:
Manivannan Sadhasivam <manivannanece23@gmail.com> Acked-by:
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- 10 Jan, 2017 2 commits
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Jonathan Cameron authored
Another one of these that we missed previously which prevents test builds of this driver on 32 bit platforms as it gives an undefined __divdi3 warning. Signed-off-by: -
Jonathan Cameron authored
It is meant to be long and is only added to an s64. Signed-off-by:
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