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path: root/drivers/iio/adc/twl4030-madc.c
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2017-10-12iio: adc: twl4030: Disable the vusb3v1 rugulator in the error handling path ↵Christophe JAILLET
of 'twl4030_madc_probe()' commit 7f70be6e4025db0551e6863e7eb9cca07122695c upstream. Commit 7cc97d77ee8a has introduced a call to 'regulator_disable()' in the .remove function. So we should also have such a call in the .probe function in case of error after a successful 'regulator_enable()' call. Add a new label for that and use it. Fixes: 7cc97d77ee8a ("iio: adc: twl4030: Fix ADC[3:6] readings") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-12iio: adc: twl4030: Fix an error handling path in 'twl4030_madc_probe()'Christophe JAILLET
commit 245a396a9b1a67ac5c3228737c261b3e48708a2a upstream. If 'devm_regulator_get()' fails, we should go through the existing error handling path instead of returning directly, as done is all the other error handling paths in this function. Fixes: 7cc97d77ee8a ("iio: adc: twl4030: Fix ADC[3:6] readings") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-03iio: adc: twl4030: Fix ADC[3:6] readingsAdam YH Lee
MADC[3:6] reads incorrect values without these two following changes: - enable the 3v1 bias regulator for ADC[3:6] - configure ADC[3:6] lines as input, not as USB Signed-off-by: Adam YH Lee <adam.yh.lee@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-07-13Merge tag 'iio-fixes-for-4.2a' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus Jonathan writes: First set of IIO fixes for the 4.2 cycle. * Fix a regression in hid sensors suspend time as a result of adding runtime pm. The normal flow of waking up devices in order to go into suspend (given the devices are normally suspended when not reading) to a regression in suspend time on some laptops (reports of an additional 8 seconds). Fix this by checking to see if a user action resulting in the wake up, and make it a null operation if it didn't. Note that for hid sensors, there is nothing useful to be done when moving into a full suspend from a runtime suspend so they might as well be left alone. * rochip_saradc: fix some missing MODULE_* data including the licence so that the driver does not taint the kernel incorrectly and can build as a module. * twl4030 - mark irq as oneshot as it always should have been. * inv-mpu - write formats for attributes not specified, leading to miss interpretation of the gyro scale channel when written. * Proximity ABI clarification. This had snuck through as a mess. Some drivers thought proximity went in one direction, some the other. We went with the most common option, documented it and fixed up the drivers going the other way. Fix for sx9500 included in this set. * ad624r - fix a wrong shift in the output data. * at91_adc - remove a false limit on the value of the STARTUP register applied by too small a type for the device tree parameter. * cm3323 - clear the bits when setting the integration time (otherwise we can only ever set more bits in the relevant field). * bmc150-accel - multiple triggers are registered, but on error were not being unwound in the opposite order leading to removal of triggers that had not yet successfully been registered (count down instead of up when unwinding). * tcs3414 - ensure right part of val / val2 pair read so that the integration time is not always 0. * cc10001_adc - bug in kconfig dependency. Use of OR when AND was intended.
2015-06-07iio: twl4030-madc: Pass the IRQF_ONESHOT flagFabio Estevam
Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. So pass the IRQF_ONESHOT flag in this case. The semantic patch that makes this change is available in scripts/coccinelle/misc/irqf_oneshot.cocci. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-07iio: adc: twl4030_madc: Fix description of twl4030_madc_set_current_generator()H. Nikolaus Schaller
The @chan parameter can be 0 or 1 and not a bit mask. Fix wrong description. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2015-06-07iio: adc: twl4030_madc: Fix calculation of the temperature sense currentH. Nikolaus Schaller
The bit mask to read the setting of the constant current source for measuring the NTC voltage was the wrong one. Since default value is initialized to the lowest level (000 = 10uA) the difference was probably never noticed in practice. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-08-26iio: remove .owner field for driver using module_platform_driverSanjeev Sharma
This patch removes the .owner field for drivers which use the platform_driver_register api because this is overriden in _platform_driver_register. Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma@mentor.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-06-02twl4030-madc: Request processed values in twl4030_get_madc_conversionPaul Kocialkowski
Not setting the raw parameter in the request causes it to be randomly initialized to a value that might be different from zero or zero. This leads to values that are randomly either raw or processed, making it very difficult to make reliable use of the values. Cc: Stable@vger.kernel.org Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2014-03-19mfd: Delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-18mfd: twl4030-madc: Move driver to drivers/iio/adcSebastian Reichel
This is a driver for an A/D converter, which belongs into drivers/iio/adc. Signed-off-by: Sebastian Reichel <sre@debian.org> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>