[v4,0/2] serial: uartps: Add TACTIVE check

Message

Shubhrajyoti Datta March 19, 2020, 9:44 a.m. UTC

The cdns_uart_tx_empty function is currently checking oly for tx_empty
bit of SR. In some environments, it is leading to a corruption in log
because tx_empty does not gaurantee that all the bytes are transmitted
out of the FIFO. So, add TACTIVE bit in the check.

This patch series does the following:
-Remove unconditional wait for tx_empty inside set_termios function
-Add TACTIVE check in cdns_uart_tx_empty function

Changes in v4:
-Split into two patches as suggested by Johan

Raviteja Narayanam (2):
  serial: uartps: Remove unconditional wait inside set_termios
  serial: uartps: Add TACTIVE check in cdns_uart_tx_empty function

 drivers/tty/serial/xilinx_uartps.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)