[v4,0/3] Add driver for Murata IRS-D200

Message

Waqar Hameed July 19, 2023, 7:51 a.m. UTC

Murata IRS-D200 is a PIR sensor for human detection. In this series we
add devicetree bindings and an IIO driver with support for triggered
buffer and events. Link to the datasheet should be added to the
devicetree bindings, when that is available.

Changes in v4:

[iio]
* Use `iio_trigger_poll_nested()` instead of `iio_trigger_poll_chained()`.
  (Remnant from old tree... Sorry!)

Link to v3: https://lore.kernel.org/lkml/[e-mail]/

Changes in v3:

[dt-bindings]
* Add "Reviewed-by" footer in commit message.

[iio]
* Use `__le16` for buffers in `regmap_bulk_read/write()`.
* Use `8` instead of `BIT(3)` in `irsd200_write_nr_count()`.
* Rename `val` to `tmp` in `irsd200_write_event_config()`.
* Return `0` on success in `irsd200_write_event_config()`.
* Return `IRQ_HANDLED` instead of `IRQ_NONE` in error paths.
* Return `IRQ_NONE` when not clearing anything in
  `irsd200_irq_thread()`.
* Use `devm_regulator_get_enable()` in probe.

Link to v2: https://lore.kernel.org/lkml/[e-mail]/

Changes in v2:

[dt-bindings]
* Remove "bindings for" in commit subject.
* Remove superfluous yaml block style indicator ('|') for
  `description:`.
* Change node name in example from `pir` to `proximity`.
* Add required `vdd-supply` property.

[iio]
* Add event enums for running period and count.
* Use `set_trigger_state` callback instead of `iio_buffer_setup_ops`'s
  `predisable` and `postenable`.
* Use `regmap_bulk_read()` in `irsd200_read_data()` and
  `irsd200_read_timer()`.
* Use `regmap_bulk_write()` in `irsd200_write_timer()`.
* Remove comment for macro `IRS_UPPER_COUNT()`.
* Move `IIO_EV_INFO_LOW/HIGH_PASS_FILTER_3DB` from `iio_event_spec` to
  `iio_chan_spec`.
* Ignore timer (`IRS_INTR_TIMER`) interrupts.
* Clarify comment on `ssleep(3)` in `irsd200_write_data_rate()`.
* Only check for non-zero return values from `regmap` functions (as
  opposed to `ret < 0`).
* Add macro defines for operation states.
* Remove fix size in static const array declarations.
* Remove unnecessary `ret` variable in `irsd200_write_raw()`.
* Remove comments in `irsd200_event_spec[]`.
* Remove unnecessary call to `i2c_set_clientdata()` in probe.
* Use `dev_err_probe()` everywhere in probe.
* Remove unnecessary braces around if statement in probe.
* Get and enable regulator in probe.

Link to v1: https://lore.kernel.org/lkml/[e-mail]/

Waqar Hameed (3):
  dt-bindings: iio: proximity: Add Murata IRS-D200
  iio: Add event enums for running period and count
  iio: Add driver for Murata IRS-D200

 Documentation/ABI/testing/sysfs-bus-iio       |  16 +
 .../iio/proximity/murata,irsd200.yaml         |  60 ++
 drivers/iio/industrialio-event.c              |   2 +
 drivers/iio/proximity/Kconfig                 |  12 +
 drivers/iio/proximity/Makefile                |   1 +
 drivers/iio/proximity/irsd200.c               | 962 ++++++++++++++++++
 include/linux/iio/types.h                     |   2 +
 7 files changed, 1055 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/proximity/murata,irsd200.yaml
 create mode 100644 drivers/iio/proximity/irsd200.c


base-commit: 3f01e9fed8454dcd89727016c3e5b2fbb8f8e50c