From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Hi All,
This one proved an interesting diversion.
Work done against a somewhat hacked up QEMU emulation of 3 daisy chained
ad7280a devices (18 channels). Note that the emulation isn't complete
but does do chaining, CRC, and readout of channels etc in a fashion that
worked with the original driver (up to the bug in patch 1) and continues
to work with the updated version. I've not intention to upstream the
emulation (as would need to make it more completed and flexible), but
happy to share it with anyone who is interested.
I briefly flirted with posting a patch to just drop the driver entirely,
but the part is still available and it looked like fun + isn't going
to greatly impact maintainability of the subsystem long term so is low
cost even if it goes obsolete sometime soonish.
There are lots of things we could do after this set to improved the driver
and make things more flexible, but it should basically 'just work'
Anyhow, as normal for staging graduations, last patch has rename detection
turned off so that people can easily see what I am proposing we move
out of staging.
Jonathan Cameron (17):
staging:iio:adc:ad7280a: Fix handing of device address bit reversing.
staging:iio:adc:ad7280a: Register define cleanup.
staging:iio:adc:ad7280a: rename _read() to _read_reg()
staging:iio:adc:ad7280a: Split buff[2] into tx and rx parts
staging:iio:adc:ad7280a: Use bitfield ops to managed fields in
transfers.
staging:iio:adc:ad7280a: Switch to standard event control
staging:iio:adc:ad7280a: Standardize extended ABI naming
staging:iio:adc:ad7280a: Drop unused timestamp channel.
staging:iio:adc:ad7280a: Trivial comment formatting cleanup
staging:iio:adc:ad7280a: Make oversampling_ratio a runtime control
staging:iio:adc:ad7280a: Cleanup includes
staging:iio:ad7280a: Reflect optionality of irq in ABI
staging:iio:adc:ad7280a: Use a local dev pointer to avoid &spi->dev
staging:iio:adc:ad7280a: Use device properties to replace platform
data.
dt-bindings:iio:adc:ad7280a: Add binding
iio:adc:ad7280a: Document ABI for cell balance switches
iio:adc:ad7280a: Move out of staging
.../ABI/testing/sysfs-bus-iio-adc-ad7280a | 14 +
.../bindings/iio/adc/adi,ad7280a.yaml | 87 ++
drivers/iio/adc/Kconfig | 11 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/ad7280a.c | 1116 +++++++++++++++++
drivers/staging/iio/adc/Kconfig | 11 -
drivers/staging/iio/adc/Makefile | 1 -
drivers/staging/iio/adc/ad7280a.c | 1044 ---------------
drivers/staging/iio/adc/ad7280a.h | 37 -
9 files changed, 1229 insertions(+), 1093 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-ad7280a
create mode 100644 Documentation/devicetree/bindings/iio/adc/adi,ad7280a.yaml
create mode 100644 drivers/iio/adc/ad7280a.c
delete mode 100644 drivers/staging/iio/adc/ad7280a.c
delete mode 100644 drivers/staging/iio/adc/ad7280a.h
--
2.32.0
