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ca2e9c3beec67dc90944f3d2a72f77652fb9cefc
linux/drivers/iio
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Linus Walleij bee448390e iio: afe: rescale: Accept only offset channels 
As noted by Jonathan Cameron: it is perfectly legal for a channel
to have an offset but no scale in addition to the raw interface.
The conversion will imply that scale is 1:1.

Make rescale_configure_channel() accept just scale, or just offset
to process a channel.

When a user asks for IIO_CHAN_INFO_OFFSET in rescale_read_raw()
we now have to deal with the fact that OFFSET could be present
but SCALE missing. Add code to simply scale 1:1 in this case.

Link: https://lore.kernel.org/linux-iio/CACRpkdZXBjHU4t-GVOCFxRO-AHGxKnxMeHD2s4Y4PuC29gBq6g@mail.gmail.com/
Fixes: 53ebee9499 ("iio: afe: iio-rescale: Support processed channels")
Fixes: 9decacd8b3 ("iio: afe: rescale: Fix boolean logic bug")
Reported-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20230902-iio-rescale-only-offset-v2-1-988b807754c8@linaro.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-10-17 20:25:32 +01:00
..
accel
iio: accel: adxl313: Use i2c_get_match_data
2023-07-29 12:30:39 +01:00
adc
iio: exynos-adc: request second interupt only when touchscreen mode is used
2023-10-14 17:47:20 +01:00
addac
iio: addac: Kconfig: update ad74413r selections
2023-10-05 18:06:45 +01:00
afe
iio: afe: rescale: Accept only offset channels
2023-10-17 20:25:32 +01:00
amplifiers
iio: amplifiers: ad8366: add support for HMC792A Attenuator
2023-07-23 12:22:56 +01:00
buffer
iio: Don't silently expect attribute types
2022-11-23 19:44:04 +00:00
cdc
iio: cdc: ad7150: relax return value check for IRQ get
2023-08-01 18:55:55 +01:00
chemical
iio: chemical: scd4x: Add pressure compensation
2023-07-20 19:21:30 +01:00
common
iio: cros_ec: fix an use-after-free in cros_ec_sensors_push_data()
2023-10-05 18:06:45 +01:00
dac
iio: dac: ad3552r: Correct device IDs
2023-09-11 20:12:59 +01:00
dummy
Merge tag 'bitmap-for-5.19-rc1' of https://github.com/norov/linux
2022-06-04 14:04:27 -07:00
filter
drivers: iio: filter: admv8818: add bypass mode
2023-08-08 09:51:06 +01:00
frequency
iio: admv1013: add mixer_vgate corner cases
2023-09-11 20:12:59 +01:00
gyro
iio: Switch i2c drivers back to use .probe()
2023-05-21 18:54:53 +01:00
health
iio: Switch i2c drivers back to use .probe()
2023-05-21 18:54:53 +01:00
humidity
iio: Switch i2c drivers back to use .probe()
2023-05-21 18:54:53 +01:00
imu
iio: imu: bno055: Fix missing Kconfig dependencies
2023-10-05 18:06:45 +01:00
light
iio: light: vcnl4000: Don't power on/off chip in config
2023-10-05 18:06:46 +01:00
magnetometer
Merge tag 'iio-for-6.5a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
2023-06-15 13:01:55 +02:00
multiplexer
iio: multiplexer: Switch to use dev_err_probe() helper
2022-11-23 19:43:57 +00:00
orientation
…
position
…
potentiometer
iio: potentiometer: mcp4531: Use i2c_get_match_data()
2023-07-29 15:55:48 +01:00
potentiostat
iio: Switch i2c drivers back to use .probe()
2023-05-21 18:54:53 +01:00
pressure
iio: pressure: ms5611: ms5611_prom_is_valid false negative bug
2023-10-05 18:06:46 +01:00
proximity
iio: irsd200: fix -Warray-bounds bug in irsd200_trigger_handler
2023-10-05 18:06:45 +01:00
resolver
iio: resolver: ad2s90: Fix alignment for DMA safety
2022-06-14 11:53:19 +01:00
temperature
iio: adc: Explicitly include correct DT includes
2023-07-23 13:38:13 +01:00
test
iio: test: Mark file local structure arrays static.
2022-08-15 22:30:01 +01:00
trigger
iio: trigger: stm32-lptimer-trigger: remove unneeded platform_set_drvdata()
2023-08-05 19:29:39 +01:00
iio_core_trigger.h
…
iio_core.h
…
industrialio-buffer.c
iio: buffer: fix coding style warnings
2023-05-13 17:56:06 +01:00
industrialio-configfs.c
…
industrialio-core.c
Merge 6.5-rc6 into char-misc-next
2023-08-13 22:14:51 +02:00
industrialio-event.c
iio: Add event enums for running period and count
2023-07-23 13:16:18 +01:00
industrialio-gts-helper.c
iio: gts-helpers: fix integration time units
2023-05-13 17:54:57 +01:00
industrialio-sw-device.c
iio: Don't use bare "unsigned"
2022-07-01 11:19:08 +01:00
industrialio-sw-trigger.c
iio: core: Fix entry not deleted when iio_register_sw_trigger_type() fails
2022-11-12 17:53:35 +00:00
industrialio-trigger.c
iio: Make return value check for set_trigger_state() consistent
2023-07-20 19:21:30 +01:00
industrialio-triggered-event.c
…
inkern.c
iio: inkern: Add a helper to query an available minimum raw value
2023-07-09 22:48:17 +01:00
Kconfig
iio: light: Add gain-time-scale helpers
2023-04-10 12:26:34 +01:00
Makefile
iio: light: Add gain-time-scale helpers
2023-04-10 12:26:34 +01:00
TODO
iio: core: move 'mlock' to 'struct iio_dev_opaque'
2022-11-23 19:44:00 +00:00