can: bittiming: can_fixup_bittiming(): set effective tq
The can_fixup_bittiming() function is used to validate the user-supplied low-level bit timing parameters and calculate the bitrate prescaler (brp) from the requested time quanta (tq) and the CAN clock of the controller. can_fixup_bittiming() selects the best matching integer bit rate prescaler, which may result in a different time quantum than the value specified by the user. Calculate the resulting time quantum and assign it so that the user sees the effective time quantum. Link: https://lore.kernel.org/all/20230202110854.2318594-4-mkl@pengutronix.deSigned-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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