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 (5): iio: add support for pulse width capture devices iio: pulse: add TI ECAP driver iio: enable selection and build of pulse drivers pwm: enable TI PWMSS if the IIO tiecap driver is selected ARM: dts: AM33XX: Add ecap interrupt properties 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 | 493 ++++++++++++++++++++++++++++++++++++++++ drivers/pwm/Kconfig | 2 +- include/linux/iio/types.h | 1 + 9 files changed, 530 insertions(+), 1 deletion(-) create mode 100644 drivers/iio/pulse/Kconfig create mode 100644 drivers/iio/pulse/Makefile create mode 100644 drivers/iio/pulse/tiecap.c -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
