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fd5ac974fc
linux/drivers/counter
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Fabrice Gasnier fd5ac974fc counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update 
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>
2022-11-26 16:49:28 -05:00
..
104-quad-8.c counter: 104-quad-8: Fix race getting function mode and direction 2022-10-23 20:39:26 -04:00
counter-chrdev.c counter: Introduce the COUNTER_COMP_ARRAY component type 2022-09-30 14:32:35 +02:00
counter-chrdev.h counter: Add character device interface 2021-10-17 10:53:52 +01:00
counter-core.c counter: Move symbols into COUNTER namespace 2022-09-30 14:32:35 +02:00
counter-sysfs.c counter: Introduce the COUNTER_COMP_ARRAY component type 2022-09-30 14:32:35 +02:00
counter-sysfs.h counter: Internalize sysfs interface code 2021-10-17 10:52:58 +01:00
ftm-quaddec.c counter: Move symbols into COUNTER namespace 2022-09-30 14:32:35 +02:00
intel-qep.c counter: Move symbols into COUNTER namespace 2022-09-30 14:32:35 +02:00
interrupt-cnt.c counter: interrupt-cnt: Implement watch_validate callback 2022-09-30 14:32:35 +02:00
Kconfig counter: ti-ecap-capture: capture driver support for ECAP 2022-09-30 14:32:35 +02:00
Makefile counter: ti-ecap-capture: capture driver support for ECAP 2022-09-30 14:32:35 +02:00
microchip-tcb-capture.c counter: microchip-tcb-capture: Handle Signal1 read and Synapse 2022-10-23 20:38:49 -04:00
stm32-lptimer-cnt.c counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update 2022-11-26 16:49:28 -05:00
stm32-timer-cnt.c counter: Move symbols into COUNTER namespace 2022-09-30 14:32:35 +02:00
ti-ecap-capture.c counter: ti-ecap-capture: fix IS_ERR() vs NULL check 2022-10-17 09:51:29 -04:00
ti-eqep.c counter: Move symbols into COUNTER namespace 2022-09-30 14:32:35 +02:00