[Backport v4.2-branch] drivers: entropy: Fix non-stop RNG ISR firing for STM32WB09 #98618
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Fix the TRNG driver issue regarding non-stop ISR firing for STM32WB09 by clearing RNG_IRQ_SR_ERROR_IRQ flag. Signed-off-by: Ali Hozhabri <[email protected]> (cherry picked from commit d7074f2)
Exclude the WB0x series from discarding data 12 times from the RNG data register. Add a comment to the recover_seed_error function explaining the reason for reading and discarding data from the RNG data register 12 times. Signed-off-by: Ali Hozhabri <[email protected]> (cherry picked from commit 57ebf79)
…ance Fix the issue regarding passing the TRNG peripheral instance to the driver. Increase the SYSTEM_WORKQUEUE_STACK_SIZE when CONFIG_BT is set. According to the log of thread analyzer for beacon sample, 1048 bytes are needed. So, it's been increased to a safer value. Signed-off-by: Ali Hozhabri <[email protected]> (cherry picked from commit 7a593ed)
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Oct 31, 2025
| { | ||
| #if defined(CONFIG_SOC_STM32WB09XX) | ||
| LL_RNG_SetResetHealthErrorFlags(RNGx, 1); | ||
| stm32_reg_write(&RNGx->IRQ_SR, RNG_IRQ_SR_ERROR_IRQ); |
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This does not exist in v4.2 - backport needs to be modified.
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Backport 7a593ed~3..7a593ed from #98151.