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Commit f548b96d authored by Alexander Shiyan's avatar Alexander Shiyan Committed by Greg Kroah-Hartman
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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: default avatarAlexander Shiyan <shc_work@mail.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c098020d

drivers/tty/serial/sccnxp.c

+6 −1
Original line number Diff line number Diff line
@@ -305,14 +305,19 @@ static void sccnxp_handle_rx(struct uart_port *port) 
		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)