WSL2-Linux-Kernel/drivers/counter
Fabrice Gasnier e854a4ab38 counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
[ Upstream commit fd5ac974fc ]

The ARR (auto reload register) and CMP (compare) registers are
successively written. The status bits to check the update of these
registers are polled together with regmap_read_poll_timeout().
The condition to end the loop may become true, even if one of the register
isn't correctly updated.
So ensure both status bits are set before clearing them.

Fixes: d8958824cf ("iio: counter: Add support for STM32 LPTimer")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20221123133609.465614-1-fabrice.gasnier@foss.st.com/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:14:30 +01:00
..
104-quad-8.c
Kconfig
Makefile
counter.c
ftm-quaddec.c
intel-qep.c
interrupt-cnt.c
microchip-tcb-capture.c counter: microchip-tcb-capture: Handle Signal1 read and Synapse 2022-11-03 23:59:13 +09:00
stm32-lptimer-cnt.c counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update 2022-12-31 13:14:30 +01:00
stm32-timer-cnt.c
ti-eqep.c