Jonathan writes:
1st set of IIO fixes for the 5.19 cycle.
Most of these have been in next for a long time. Unfortunately there
was one stray patch in the branch (wasn't a fix), so I've just rebased
to remove that.
* testing
- Fix a missing MODULE_LICENSE() warning by restricting possible build
configs.
* Various drivers
- Fix ordering of iio_get_trigger() being called before
iio_trigger_register()
* adi,admv1014
- Fix dubious x & !y warning.
* adi,axi-adc
- Fix missing of_node_put() in error and normal paths.
* aspeed,adc
- Add missing of_node_put()
* fsl,mma8452
- Fix broken probing from device tree.
- Drop check on return value of i2c write to device to cause reset as
ACK will be missing (device reset before sending it).
* fsl,vf610
- Fix documentation of in_conversion_mode ABI.
* iio-trig-sysfs
- Ensure irq work has finished before freeing the trigger.
* invensense,mpu3050
- Disable regulators in error path.
* invensense,icm42600
- Fix collision of enum value of 0 with error path where 0 is no match.
* renesas,rzg2l_Adc
- Add missing fwnode_handle_put() in error path.
* rescale
- Fix a boolean logic bug for detection of raw + scale affecting an
obscure corner case.
* semtech,sx9324
- Check return value of read of pin_defs
* st,stm32-adc:
- Fix interaction across ADC instances for some supported devices.
- Drop false spurious IRQ messages.
- Fix calibration value handling. If we can't calibrate don't expose the
vref_int channel.
- Fix maximum clock rate for stm32pm15x
* ti,ads131e08
- Add missing fwnode_handle_put() in error paths.
* xilinx,ams
- Fix variable checked for error from platform_get_irq()
* x-powers,axp288
- Overide TS_PIN bias current for boards where it is not correctly
initialized.
* yamaha,yas530
- Fix inverted check on calibration data being all zeros.
* tag 'iio-fixes-for-5.19a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (26 commits)
iio:proximity:sx9324: Check ret value of device_property_read_u32_array()
iio: accel: mma8452: ignore the return value of reset operation
iio: adc: stm32: fix maximum clock rate for stm32mp15x
iio: adc: stm32: fix vrefint wrong calibration value handling
iio: imu: inv_icm42600: Fix broken icm42600 (chip id 0 value)
iio: adc: vf610: fix conversion mode sysfs node name
iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client
iio: test: fix missing MODULE_LICENSE for IIO_RESCALE=m
iio:humidity:hts221: rearrange iio trigger get and register
iio:chemical:ccs811: rearrange iio trigger get and register
iio:accel:mxc4005: rearrange iio trigger get and register
iio:accel:kxcjk-1013: rearrange iio trigger get and register
iio:accel:bma180: rearrange iio trigger get and register
iio: afe: rescale: Fix boolean logic bug
iio: adc: aspeed: Fix refcount leak in aspeed_adc_set_trim_data
iio: adc: stm32: Fix IRQs on STM32F4 by removing custom spurious IRQs message
iio: adc: stm32: Fix ADCs iteration in irq handler
iio: adc: ti-ads131e08: add missing fwnode_handle_put() in ads131e08_alloc_channels()
iio: adc: rzg2l_adc: add missing fwnode_handle_put() in rzg2l_adc_parse_properties()
iio: trigger: sysfs: fix use-after-free on remove
...
When introducing support for processed channels I needed
to invert the expression:
if (!iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) ||
!iio_channel_has_info(schan, IIO_CHAN_INFO_SCALE))
dev_err(dev, "source channel does not support raw/scale\n");
To the inverse, meaning detect when we can usse raw+scale
rather than when we can not. This was the result:
if (iio_channel_has_info(schan, IIO_CHAN_INFO_RAW) ||
iio_channel_has_info(schan, IIO_CHAN_INFO_SCALE))
dev_info(dev, "using raw+scale source channel\n");
Ooops. Spot the error. Yep old George Boole came up and bit me.
That should be an &&.
The current code "mostly works" because we have not run into
systems supporting only raw but not scale or only scale but not
raw, and I doubt there are few using the rescaler on anything
such, but let's fix the logic.
Cc: Liam Beguin <liambeguin@gmail.com>
Cc: stable@vger.kernel.org
Fixes: 53ebee9499 ("iio: afe: iio-rescale: Support processed channels")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Liam Beguin <liambeguin@gmail.com>
Acked-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20220524075448.140238-1-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This patch applies the semantic patch:
@@
expression I, P, SP;
@@
I = devm_iio_device_alloc(P, SP);
...
- I->dev.parent = P;
It updates 302 files and does 307 deletions.
This semantic patch also removes some comments like
'/* Establish that the iio_dev is a child of the i2c device */'
But this is is only done in case where the block is left empty.
The patch does not seem to cover all cases. It looks like in some cases a
different variable is used in some cases to assign the parent, but it
points to the same reference.
In other cases, the block covered by ... may be just too big to be covered
by the semantic patch.
However, this looks pretty good as well, as it does cover a big bulk of the
drivers that should remove the parent assignment.
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
If an ADC channel measures the midpoint of a voltage divider, the
interesting voltage is often the voltage over the full resistance.
E.g. if the full voltage is too big for the ADC to handle.
Likewise, if an ADC channel measures the voltage across a shunt
resistor, with or without amplification, the interesting value is
often the current through the resistor.
This driver solves these problems by allowing to linearly scale a channel
and/or by allowing changes to the type of the channel.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
