chao an 7223a1d0d4 serial/uart_16550: remove up_putc spinlock
putc atomicity should be guaranteed by common code rather than add similar hack to lower half driver

Signed-off-by: chao an <anchao@lixiang.com>
2024-09-12 18:11:30 +08:00
..
2024-08-25 22:16:53 +08:00
2023-04-29 13:48:52 +08:00
2023-09-19 09:41:07 +08:00