Introduce support for the Murata ZPA2326 pressure and temperature sensor. Also bring in resource managed versions for triggered buffer setup helpers and trigger registration which the above mentioned driver depends on. Driver features: * I2C and SPI buses * interrupt and polling based operations * direct, triggered and software buffered IIO sampling modes * hardware sampling frequency handling * trigger consumers notification (plugged on interrupt) * runtime and system power states 2 questions with respect to current driver implementation for which I'd like to hear your suggestions... Hardware frequency handling is using the (legacy ?) IIO_DEV_ATTR_SAMP_FREQ and IIO_CONST_ATTR_SAMP_FREQ_AVAIL macros. As I remember Jonathan telling he was trying to get rid of these, I wonder whether I should move to iio_chan_spec_ext_info based code or not. Sensor is able to sample in a continuous manner, triggering an interrupt each time a new sample is ready to be fetched by CPU. This mode is implemented using INDIO_BUFFER_SOFTWARE mode instead of INDIO_BUFFER_TRIGGERED (as can be seen in the vast majority of IIO drivers). Can somebody confirm there is no misuse here ? Regards, gregor. Gregor Boirie (3): iio:trigger: add resource managed (un)register iio: add resource managed triggered buffer init helpers iio:pressure: initial zpa2326 barometer support .../devicetree/bindings/iio/pressure/zpa2326.txt | 23 + Documentation/driver-model/devres.txt | 4 + drivers/iio/buffer/industrialio-triggered-buffer.c | 42 + drivers/iio/industrialio-core.c | 3 +- drivers/iio/industrialio-trigger.c | 59 + drivers/iio/pressure/Kconfig | 33 + drivers/iio/pressure/Makefile | 3 + drivers/iio/pressure/zpa2326.c | 1766 ++++++++++++++++++++ drivers/iio/pressure/zpa2326.h | 76 + drivers/iio/pressure/zpa2326_i2c.c | 188 +++ drivers/iio/pressure/zpa2326_spi.c | 184 ++ include/linux/iio/iio.h | 1 + include/linux/iio/trigger.h | 6 + include/linux/iio/triggered_buffer.h | 8 + 14 files changed, 2395 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/iio/pressure/zpa2326.txt create mode 100644 drivers/iio/pressure/zpa2326.c create mode 100644 drivers/iio/pressure/zpa2326.h create mode 100644 drivers/iio/pressure/zpa2326_i2c.c create mode 100644 drivers/iio/pressure/zpa2326_spi.c -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
