This series adds support for Low-Power Timer that can be found on some STM32 devices. STM32 LPTimer (LPTIM) is a 16-bit timer that provides several functionalities. This series adds support for following features: - PWM output (with programmable prescaler, configurable polarity) - Trigger source for STM32 ADC or DAC (LPTIM_OUT) - Quadrature encoder and counter The MFD core is used to manage common resources (clock, register map) and to detect encoder feature. "stm32_lptimer" structure is provided to its sub-nodes to share those information: - PWM driver is used to implement single PWM channel - IIO trigger - IIO quadrature encoder and counter --- Resend v3 with collected Acks Changes in v3: - I sent this v3 with various changes, but still need to discuss ABI for counter driver (no change on this in v3). - Remarks for Rob on dt-bindings - Add validate_device in Trigger driver - Update PWM driver after Thierry's comments - Additional patch for STM32 ADC trigger Changes in v2: - Various remarks from Lee, on MFD part, extended to the full series, such as: clock name, use "Low-Power Timer", file headers, dt-bindings props descriptions, fix dt example. Fabrice Gasnier (9): dt-bindings: mfd: Add STM32 LPTimer binding mfd: Add STM32 LPTimer driver dt-bindings: pwm: Add STM32 LPTimer PWM binding pwm: Add STM32 LPTimer PWM driver dt-bindings: iio: Add STM32 LPTimer trigger binding iio: trigger: Add STM32 LPTimer trigger driver dt-bindings: iio: Add STM32 LPTimer quadrature encoder and counter iio: counter: Add support for STM32 LPTimer iio: adc: stm32: add support for lptimer triggers .../ABI/testing/sysfs-bus-iio-lptimer-stm32 | 57 +++ .../bindings/iio/counter/stm32-lptimer-cnt.txt | 27 ++ .../bindings/iio/timer/stm32-lptimer-trigger.txt | 23 ++ .../devicetree/bindings/mfd/stm32-lptimer.txt | 48 +++ .../devicetree/bindings/pwm/pwm-stm32-lp.txt | 24 ++ drivers/iio/adc/stm32-adc.c | 14 +- drivers/iio/counter/Kconfig | 9 + drivers/iio/counter/Makefile | 1 + drivers/iio/counter/stm32-lptimer-cnt.c | 383 +++++++++++++++++++++ drivers/iio/trigger/Kconfig | 11 + drivers/iio/trigger/Makefile | 1 + drivers/iio/trigger/stm32-lptimer-trigger.c | 118 +++++++ drivers/mfd/Kconfig | 14 + drivers/mfd/Makefile | 1 + drivers/mfd/stm32-lptimer.c | 107 ++++++ drivers/pwm/Kconfig | 10 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-stm32-lp.c | 246 +++++++++++++ include/linux/iio/timer/stm32-lptim-trigger.h | 27 ++ include/linux/mfd/stm32-lptimer.h | 62 ++++ 20 files changed, 1182 insertions(+), 2 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-lptimer-stm32 create mode 100644 Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt create mode 100644 drivers/iio/counter/stm32-lptimer-cnt.c create mode 100644 drivers/iio/trigger/stm32-lptimer-trigger.c create mode 100644 drivers/mfd/stm32-lptimer.c create mode 100644 drivers/pwm/pwm-stm32-lp.c create mode 100644 include/linux/iio/timer/stm32-lptim-trigger.h create mode 100644 include/linux/mfd/stm32-lptimer.h -- 1.9.1 -- 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
