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Filename	Latest commit message	Latest commit date
Fabrice Gasnier b7e4d3d707 counter: stm32-lptimer-cnt: fix error handling when enabling ... commit 8744dcd4fc7800de2eb9369410470bb2930d4c14 upstream. In case the stm32_lptim_set_enable_state() fails to update CMP and ARR, a timeout error is raised, by regmap_read_poll_timeout. It may happen, when the lptimer runs on a slow clock, and the clock is gated only few times during the polling. Badly, when this happen, STM32_LPTIM_ENABLE in CR register has been set. So the 'enable' state in sysfs wrongly lies on the counter being correctly enabled, due to CR is read as one in stm32_lptim_is_enabled(). To fix both issues: - enable the clock before writing CMP, ARR and polling ISR bits. It will avoid the possible timeout error. - clear the ENABLE bit in CR and disable the clock in the error path. 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/20250224170657.3368236-1-fabrice.gasnier@foss.st.com Signed-off-by: William Breathitt Gray <wbg@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-04-10 14:29:39 +02:00
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104-quad-8.c
counter.c
ftm-quaddec.c
Kconfig
Makefile
stm32-lptimer-cnt.c	counter: stm32-lptimer-cnt: fix error handling when enabling	2025-04-10 14:29:39 +02:00
stm32-timer-cnt.c