[PATCH v3 0/6] IIO pulse capture support for TI ECAP

Matt Porter mporter at linaro.org
Wed Feb 5 14:01:35 EST 2014

Changes since v2:
	- Remove various unneeded field initialization
	- Call iio_triggered_buffer_cleanup() on remove

Changes since v1:
	- Rebased to 3.14-rc1
	- Renamed in_pulse_polarity to pulse_polarity
	- Added ABI entries for pulse devices and TI ECAP

This series adds support for PWM capture devices within IIO and
adds a TI ECAP IIO driver.

PWM capture devices are supported using a new IIO "pulse" channel type.

The IIO ECAP driver implements interrupt driven triggered buffer capture
only as raw sample reads are not applicable to this hardware.
Initially, the driver supports a single pulse width measurement with
configurable polarity. The ECAP hardware can support measurement of a
complete period and duty cycle but this is not yet implemented.

Matt Porter (6):
  iio: add support for pulse width capture devices
  iio: pulse: add TI ECAP driver
  iio: enable selection and build of pulse drivers
  iio: Add ABI docs for pulse capture devices
  pwm: enable TI PWMSS if the IIO tiecap driver is selected
  ARM: dts: AM33XX: Add ecap interrupt properties

 Documentation/ABI/testing/sysfs-bus-iio            |  18 +
 .../ABI/testing/sysfs-bus-iio-pulse-tiecap         |   9 +
 arch/arm/boot/dts/am33xx.dtsi                      |   6 +
 drivers/iio/Kconfig                                |   1 +
 drivers/iio/Makefile                               |   1 +
 drivers/iio/industrialio-core.c                    |   1 +
 drivers/iio/pulse/Kconfig                          |  20 +
 drivers/iio/pulse/Makefile                         |   6 +
 drivers/iio/pulse/tiecap.c                         | 491 +++++++++++++++++++++
 drivers/pwm/Kconfig                                |   2 +-
 include/linux/iio/types.h                          |   1 +
 11 files changed, 555 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-pulse-tiecap
 create mode 100644 drivers/iio/pulse/Kconfig
 create mode 100644 drivers/iio/pulse/Makefile
 create mode 100644 drivers/iio/pulse/tiecap.c


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