linux-stable.git/drivers/iio, branch v5.4.232

iio:adc:twl6030: Enable measurement of VAC

2023-02-22T11:50:30+00:00

[ Upstream commit bffb7d9d1a3dbd09e083b88aefd093b3b10abbfb ]

VAC needs to be wired up to produce proper measurements,
without this change only near zero values are reported.

Reported-by: kernel test robot 
Reported-by: Julia Lawall 
Fixes: 1696f36482e7 ("iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver")
Signed-off-by: Andreas Kemnade 
Link: https://lore.kernel.org/r/20221217221305.671117-1-andreas@kemnade.info
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sasha Levin

iio:adc:twl6030: Enable measurements of VUSB, VBAT and others

2023-02-22T11:50:27+00:00

commit f804bd0dc28683a93a60f271aaefb2fc5b0853dd upstream.

Some inputs need to be wired up to produce proper measurements,
without this change only near zero values are reported.

Signed-off-by: Andreas Kemnade 
Fixes: 1696f36482e70 ("iio: twl6030-gpadc: TWL6030, TWL6032 GPADC driver")
Link: https://lore.kernel.org/r/20221201181635.3522962-1-andreas@kemnade.info
Cc: 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: berlin2-adc: Add missing of_node_put() in error path

2023-02-22T11:50:27+00:00

commit cbd3a0153cd18a2cbef6bf3cf31bb406c3fc9f55 upstream.

of_get_parent() will return a device_node pointer with refcount
incremented. We need to use of_node_put() on it when done. Add the
missing of_node_put() in the error path of berlin2_adc_probe();

Fixes: 70f1937911ca ("iio: adc: add support for Berlin")
Signed-off-by: Xiongfeng Wang 
Link: https://lore.kernel.org/r/20221129020316.191731-1-wangxiongfeng2@huawei.com
Cc: 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: hid: fix the retval in accel_3d_capture_sample

2023-02-22T11:50:27+00:00

commit f7b23d1c35d8b8de1425bdfccaefd01f3b7c9d1c upstream.

Return value should be zero for success. This was forgotten for timestamp
feature. Verified on RealSense cameras.

Fixes: a96cd0f901ee ("iio: accel: hid-sensor-accel-3d: Add timestamp")
Signed-off-by: Dmitry Perchanov 
Link: https://lore.kernel.org/r/a6dc426498221c81fa71045b41adf782ebd42136.camel@intel.com
Cc: 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: stm32-dfsdm: fill module aliases

2023-02-22T11:50:26+00:00

[ Upstream commit cc3304052a89ab6ac887ed9224420a27e3d354e1 ]

When STM32 DFSDM driver is built as module, no modalias information
is available. This prevents module to be loaded by udev.
Add MODULE_DEVICE_TABLE() to fill module aliases.

Fixes: e2e6771c6462 ("IIO: ADC: add STM32 DFSDM sigma delta ADC support")
Signed-off-by: Olivier Moysan 
Link: https://lore.kernel.org/r/20221202152848.45585-1-olivier.moysan@foss.st.com
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sasha Levin

iio: adc128s052: add proper .data members in adc128_of_match table

2023-01-18T10:41:41+00:00

commit e2af60f5900c6ade53477b494ffb54690eee11f5 upstream.

Prior to commit bd5d54e4d49d ("iio: adc128s052: add ACPI _HID
AANT1280"), the driver unconditionally used spi_get_device_id() to get
the index into the adc128_config array.

However, with that commit, OF-based boards now incorrectly treat all
supported sensors as if they are an adc128s052, because all the .data
members of the adc128_of_match table are implicitly 0. Our board,
which has an adc122s021, thus exposes 8 channels whereas it really
only has two.

Fixes: bd5d54e4d49d ("iio: adc128s052: add ACPI _HID AANT1280")
Signed-off-by: Rasmus Villemoes 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20221115132324.1078169-1-linux@rasmusvillemoes.dk
Cc: 
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: adc: ad_sigma_delta: do not use internal iio_dev lock

2023-01-18T10:41:41+00:00

commit 20228a1d5a55e7db0c6720840f2c7d2b48c55f69 upstream.

Drop 'mlock' usage by making use of iio_device_claim_direct_mode().
This change actually makes sure we cannot do a single conversion while
buffering is enable. Note there was a potential race in the previous
code since we were only acquiring the lock after checking if the bus is
enabled.

Fixes: af3008485ea0 ("iio:adc: Add common code for ADI Sigma Delta devices")
Signed-off-by: Nuno Sá 
Reviewed-by: Miquel Raynal 
Cc:  #No rush as race is very old.
Link: https://lore.kernel.org/r/20220920112821.975359-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron 
Signed-off-by: Greg Kroah-Hartman

iio: light: rpr0521: add missing Kconfig dependencies

2022-12-08T10:23:02+00:00

[ Upstream commit 6ac12303572ef9ace5603c2c07f5f1b00a33f580 ]

Fix an implicit declaration of function error for rpr0521 under some configs

When CONFIG_RPR0521 is enabled without CONFIG_IIO_TRIGGERED_BUFFER,
the build results in "implicit declaration of function" errors, e.g.,
  drivers/iio/light/rpr0521.c:434:3: error: implicit declaration of function
           'iio_trigger_poll_chained' [-Werror=implicit-function-declaration]
    434 |   iio_trigger_poll_chained(data->drdy_trigger0);
        |   ^~~~~~~~~~~~~~~~~~~~~~~~

This fix adds select dependencies to RPR0521's configuration declaration.

Fixes: e12ffd241c00 ("iio: light: rpr0521 triggered buffer")
Signed-off-by: Paul Gazzillo 
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216678
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20221110214729.ls5ixav5kxpeftk7@device
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sasha Levin

iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw

2022-12-08T10:23:02+00:00

[ Upstream commit fc92d9e3de0b2d30a3ccc08048a5fad533e4672b ]

KASAN report out-of-bounds read as follows:

BUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380
Read of size 4 at addr ffffffffc00e4658 by task cat/278

Call Trace:
 afe4404_read_raw
 iio_read_channel_info
 dev_attr_show

The buggy address belongs to the variable:
 afe4404_channel_leds+0x18/0xffffffffffffe9c0

This issue can be reproduce by singe command:

 $ cat /sys/bus/i2c/devices/0-0058/iio\:device0/in_intensity6_raw

The array size of afe4404_channel_leds and afe4404_channel_offdacs
are less than channels, so access with chan->address cause OOB read
in afe4404_[read|write]_raw. Fix it by moving access before use them.

Fixes: b36e8257641a ("iio: health/afe440x: Use regmap fields")
Signed-off-by: Wei Yongjun 
Acked-by: Andrew Davis 
Link: https://lore.kernel.org/r/20221107152010.95937-1-weiyongjun@huaweicloud.com
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sasha Levin

iio: health: afe4403: Fix oob read in afe4403_read_raw

2022-12-08T10:23:02+00:00

[ Upstream commit 58143c1ed5882c138a3cd2251a336fc8755f23d9 ]

KASAN report out-of-bounds read as follows:

BUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0
Read of size 4 at addr ffffffffc02ac638 by task cat/279

Call Trace:
 afe4403_read_raw
 iio_read_channel_info
 dev_attr_show

The buggy address belongs to the variable:
 afe4403_channel_leds+0x18/0xffffffffffffe9e0

This issue can be reproduced by singe command:

 $ cat /sys/bus/spi/devices/spi0.0/iio\:device0/in_intensity6_raw

The array size of afe4403_channel_leds is less than channels, so access
with chan->address cause OOB read in afe4403_read_raw. Fix it by moving
access before use it.

Fixes: b36e8257641a ("iio: health/afe440x: Use regmap fields")
Signed-off-by: Wei Yongjun 
Acked-by: Andrew Davis 
Link: https://lore.kernel.org/r/20221107151946.89260-1-weiyongjun@huaweicloud.com
Signed-off-by: Jonathan Cameron 
Signed-off-by: Sasha Levin