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linux/drivers/iio
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Marcelo Schmitt ba1c101b28 iio: adc: ad7091r: Enable internal vref if external vref is not supplied 
[ Upstream commit e71c5c89bc ]

The ADC needs a voltage reference to work correctly.
Users can provide an external voltage reference or use the chip internal
reference to operate the ADC.
The availability of an in chip reference for the ADC saves the user from
having to supply an external voltage reference, which makes the external
reference an optional property as described in the device tree
documentation.
Though, to use the internal reference, it must be enabled by writing to
the configuration register.
Enable AD7091R internal voltage reference if no external vref is supplied.

Fixes: 260442cc5b ("iio: adc: ad7091r5: Add scale and external VREF support")
Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com>
Link: https://lore.kernel.org/r/b865033fa6a4fc4bf2b4a98ec51a6144e0f64f77.1703013352.git.marcelo.schmitt1@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-01-31 16:20:57 -08:00
..
accel iio: kx022a: Fix acceleration value scaling 2023-11-16 19:35:41 +00:00
adc iio: adc: ad7091r: Enable internal vref if external vref is not supplied 2024-01-31 16:20:57 -08:00
addac IIO: 1st set of new device support, features and cleanup for 6.7 2023-10-20 07:54:15 +02:00
afe iio: afe: rescale: Accept only offset channels 2023-10-17 20:25:32 +01:00
amplifiers iio: amplifiers: hmc425a: Add Support HMC540S 4-bit Attenuator 2023-09-12 10:39:49 +01:00
buffer iio: triggered-buffer: prevent possible freeing of wrong buffer 2023-11-26 17:17:04 +00:00
cdc iio: cdc: ad7150: relax return value check for IRQ get 2023-08-01 18:55:55 +01:00
chemical iio: chemical: sgp30: Convert enum->pointer for data in the match tables 2023-09-12 10:42:03 +01:00
common iio: common: ms_sensors: ms_sensors_i2c: fix humidity conversion time table 2023-11-16 19:35:41 +00:00
dac IIO: 1st set of new device support, features and cleanup for 6.7 2023-10-20 07:54:15 +02:00
dummy Bitmap patches for 5.19-rc1 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: 1st set of new device support, features and cleanup for 6.7 2023-10-20 07:54:15 +02:00
gyro iio: gyro: hid-sensor-gyro-3d: Convert to platform remove callback returning void 2023-09-23 15:06:55 +01:00
health iio: Switch i2c drivers back to use .probe() 2023-05-21 18:54:53 +01:00
humidity iio: si7005: Add device tree support 2023-10-14 17:12:21 +01:00
imu iio: imu: inv_mpu6050: fix an error code problem in inv_mpu6050_read_raw 2023-11-26 17:08:55 +00:00
light Revert "iio: hid-sensor-als: Add light color temperature support" 2023-12-19 08:08:20 +01:00
magnetometer iio: tmag5273: fix temperature offset 2023-11-25 15:13:18 +00:00
multiplexer iio: multiplexer: Switch to use dev_err_probe() helper 2022-11-23 19:43:57 +00:00
orientation iio: orientation: hid-sensor-rotation: Convert to platform remove callback returning void 2023-09-23 15:06:56 +01:00
position iio: position: hid-sensor-custom-intel-hinge: Convert to platform remove callback returning void 2023-09-23 15:06:56 +01:00
potentiometer iio: potentiometer: ad5110: Use i2c_get_match_data() 2023-09-12 10:42:03 +01:00
potentiostat iio: Switch i2c drivers back to use .probe() 2023-05-21 18:54:53 +01:00
pressure IIO: 1st set of new device support, features and cleanup for 6.7 2023-10-20 07:54:15 +02:00
proximity IIO: 1st set of new device support, features and cleanup for 6.7 2023-10-20 07:54:15 +02:00
resolver iio: resolver: ad2s1210: remove of_match_ptr() 2023-10-14 13:53:45 +01:00
temperature iio: temperature: hid-sensor: Convert to platform remove callback returning void 2023-09-23 15:06:56 +01:00
test iio: test: Mark file local structure arrays static. 2022-08-15 22:30:01 +01:00
trigger iio: trigger: stm32-timer: Convert to platform remove callback returning void 2023-09-23 15:06:56 +01:00
iio_core.h iio: Remove unused declarations 2023-09-12 10:42:03 +01:00
iio_core_trigger.h iio: core-trigger: make iio_device_register_trigger_consumer() an int return 2021-03-11 20:47:02 +00:00
industrialio-buffer.c iio: buffer: fix coding style warnings 2023-05-13 17:56:06 +01:00
industrialio-configfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
industrialio-core.c Merge branch 'ib-iio-hid-sensors-v6.6-rc1' into togreg 2023-09-24 13:39:25 +01:00
industrialio-event.c iio: event: add optional event label support 2023-10-11 15:54:41 +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 iio: core: move @id from struct iio_dev to struct iio_dev_opaque 2021-05-17 13:49:13 +01:00
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