STM32MP25 got the same serial hardware block as STM32MP1x but with two improvements: - TX and RX FIFO have been extended to 64 bytes. - one instance more than in STM32MP1x series. Valentin Caron (4): serial: stm32: implement prescaler tuning to compute low baudrate serial: stm32: extend max number of U(S)ART to 9 serial: stm32: change register's offset type from u8 to u16 serial: stm32: get FIFO size from hwcfg register drivers/tty/serial/stm32-usart.c | 222 +++++++++++++++++++------------ drivers/tty/serial/stm32-usart.h | 38 ++++-- 2 files changed, 159 insertions(+), 101 deletions(-) -- 2.25.1