From: Marius Cristea <marius.cristea@xxxxxxxxxxxxx>
Adding support for Microchip family of 153.6 ksps, Low-Noise 16/24-Bit
Delta-Sigma ADCs with an SPI interface. This driver covers the following part
numbers:
- MCP3561, MCP3562, MCP3564, MCP3561R, MCP3562R, MCP3564R,
- MCP3461, MCP3462, MCP3464, MCP3461R, MCP3462R and MCP3464R.
Differences related to previous patch:
v3:
- fix review comments:
- fix and update the device tree bindings
- enable "auto_zeroing_ref_enable" attribute only
when internal reference is used
- remove unused headers
- fix comments (kernel-docs)
- remove scan_type
- replace "extend_name" with read_label
- print label for each channel (label could be added into the dt)
- add comment to explain the maximum channels numbers
- add protection around critical region
- fallback compatible in device tree to deal with some newer part number
- Open questions:
- whether or not to add a spi-mux type of thing to deal with the part number
address in case there are multiple devices connected to the same chip
select.
- discussion related to the "custom property". Last time around a consensus
wasn't reached.
v2:
- fix review comments:
- change the device tree bindings
- change the ADC channel creation (starting from DT)
- use defines, masks and FIELD_PREP() instead of hardcoded values
- mode the PGA from Hardware Gain to scale
- add a current output channel from burnout current
- fix coding style issues
- use self-explanatory naming to drop the comment
- renumbered the versioning (start with v1 instead of v0)
v1:
- first version committed to review
Marius Cristea (2):
dt-bindings: iio: adc: adding MCP3564 ADC
iio: adc: adding support for MCP3564 ADC
.../ABI/testing/sysfs-bus-iio-adc-mcp3564 | 53 +
.../bindings/iio/adc/microchip,mcp3564.yaml | 200 +++
MAINTAINERS | 7 +
drivers/iio/adc/Kconfig | 13 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/mcp3564.c | 1541 +++++++++++++++++
6 files changed, 1815 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-adc-mcp3564
create mode 100644 Documentation/devicetree/bindings/iio/adc/microchip,mcp3564.yaml
create mode 100644 drivers/iio/adc/mcp3564.c
base-commit: 9e66fb52449538406cea43e9f3889c391350e76e
--
2.34.1
