[PATCH 1/2] serial: sccnxp: Reset break and overrun bits in RX handler

[PATCH 1/2] serial: sccnxp: Reset break and overrun bits in RX handler

[Alexander Shiyan]

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>
---
 drivers/tty/serial/sccnxp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 3fd83e3..79d6aeb 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -309,14 +309,19 @@ 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)
-- 
1.7.12.4

[PATCH 2/2] serial: sccnxp: Make baudrate table struct static

[Alexander Shiyan]

This struct is used only for driver, so it should be static.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
 drivers/tty/serial/sccnxp.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 79d6aeb..f9cad65 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -179,14 +179,12 @@ static int sccnxp_update_best_err(int a, int b, int *besterr)
 	return 1;
 }
 
-struct baud_table {
+static const struct {
 	u8	csr;
 	u8	acr;
 	u8	mr0;
 	int	baud;
-};
-
-const struct baud_table baud_std[] = {
+} baud_std[] = {
 	{ 0,	ACR_BAUD0,	MR0_BAUD_NORMAL,	50, },
 	{ 0,	ACR_BAUD1,	MR0_BAUD_NORMAL,	75, },
 	{ 1,	ACR_BAUD0,	MR0_BAUD_NORMAL,	110, },
-- 
1.7.12.4