Changes in v3:
- Split into three patches.
- Confirm the empty TX only after sending each character.
Changes in v2:
- split into two patches
Masahiro Yamada (3):
serial: 8250_early: do not save and restore IER in write callback
serial: 8250_early: confirm empty transmitter after sending characters
serial: 8250_early: squash wait_for_xmitr() into serial_putc()
drivers/tty/serial/8250/8250_early.c | 24 ++++--------------------
1 file changed, 4 insertions(+), 20 deletions(-)