[PATCH v4 0/3] clockevent: add low power STM32 timer

From: Benjamin Gaignard
Date: Mon Feb 17 2020 - 08:46:19 EST

This series add low power timer as boadcast clockevent device.
Low power timer could runs even when CPUs are in idle mode and
could wakeup them.

version 4:
- move defines in mfd/stm32-lptimer.h
- change compatible and subnode names
- document wakeup-source property
- reword commit message
- make driver Kconfig depends of MFD_STM32_LPTIMER
- remove useless include
- remove rate and clk fields from the private structure
- to add comments about the registers sequence in stm32_clkevent_lp_set_timer
- rework probe function and use devm_request_irq()
- do not allow module to be removed

version 3:
- fix timer set sequence
- don't forget to free irq on remove function
- use devm_kzalloc to simplify errors handling in probe function

version 2:
- stm32 clkevent driver is now a child of the stm32 lp timer node
- add a probe function and adpat the driver to use regmap provide
by it parent
- stop using timer_of helpers

Benjamin Gaignard (3):
dt-bindings: mfd: Document STM32 low power timer bindings
mfd: stm32: Add defines to be used for clkevent purpose
clocksource: Add Low Power STM32 timers driver

.../devicetree/bindings/mfd/st,stm32-lptimer.yaml | 16 ++
drivers/clocksource/Kconfig | 7 +
drivers/clocksource/Makefile | 1 +
drivers/clocksource/timer-stm32-lp.c | 213 +++++++++++++++++++++
include/linux/mfd/stm32-lptimer.h | 5 +
5 files changed, 242 insertions(+)
create mode 100644 drivers/clocksource/timer-stm32-lp.c