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Subject[PATCH v3 0/9] Add STM32 LPTimer: PWM, trigger and counter
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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

---
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

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