serial: sccnxp: Reset break and overrun bits in RX handler
This patch adds a hardware reset the break and overflow bits for
these events. Without resetting the bits they will be reported to
the core every time, when once occur.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index c5f0e96..c7dec16 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -305,14 +305,19 @@
if (unlikely(sr)) {
if (sr & SR_BRK) {
port->icount.brk++;
+ sccnxp_port_write(port, SCCNXP_CR_REG,
+ CR_CMD_BREAK_RESET);
if (uart_handle_break(port))
continue;
} else if (sr & SR_PE)
port->icount.parity++;
else if (sr & SR_FE)
port->icount.frame++;
- else if (sr & SR_OVR)
+ else if (sr & SR_OVR) {
port->icount.overrun++;
+ sccnxp_port_write(port, SCCNXP_CR_REG,
+ CR_CMD_STATUS_RESET);
+ }
sr &= port->read_status_mask;
if (sr & SR_BRK)