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drivers: flash_sync_mpsl: Reduce timeout for low priority attempt #25569

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Merged
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Nov 18, 2025
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drivers: flash_sync_mpsl: Reduce timeout for low priority attempt #25569

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1 change: 1 addition & 0 deletions doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst
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Expand Up @@ -708,6 +708,7 @@ Flash drivers

* Added a Kconfig option to configure timeout for normal priority MPSL request (:kconfig:option:`CONFIG_SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US`) in MPSL flash synchronization driver (:file:`nrf/drivers/mpsl/flash_sync/flash_sync_mpsl.c`).
After the timeout specified by this Kconfig option, a higher timeslot priority is used to increase the priority of the flash operation.
The default timeout has been reduced from 30 milliseconds to 10 milliseconds to speed up non-volatile memory operations.

Libraries
=========
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2 changes: 1 addition & 1 deletion drivers/mpsl/flash_sync/Kconfig
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Expand Up @@ -42,7 +42,7 @@ config SOC_FLASH_NRF_RADIO_SYNC_MPSL_NORMAL_PRIORITY_TIMEOUT_US
int "Timeout for normal priority MPSL request [us]"
depends on SOC_FLASH_NRF_RADIO_SYNC_MPSL
range 0 1000000
default 30000
default 10000
help
The flash synchronization mechanism relies on MPSL timeslots.
Initially the MPSL timeslot is requested with normal priority. After
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