We have an interrupt for the CTS input (RTS in FSL speech). Its handler
calls uart_handle_cts_change(), so we shouldn't do this in
imx_uart_mctrl_check() again.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/tty/serial/imx.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index a5e80a028e83..0419a084c0ed 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -805,12 +805,8 @@ static void imx_uart_clear_rx_errors(struct imx_port *sport);
static unsigned int imx_uart_get_hwmctrl(struct imx_port *sport)
{
unsigned int tmp = TIOCM_DSR;
- unsigned usr1 = imx_uart_readl(sport, USR1);
unsigned usr2 = imx_uart_readl(sport, USR2);
- if (usr1 & USR1_RTSS)
- tmp |= TIOCM_CTS;
-
/* in DCE mode DCDIN is always 0 */
if (!(usr2 & USR2_DCDIN))
tmp |= TIOCM_CAR;
@@ -843,8 +839,6 @@ static void imx_uart_mctrl_check(struct imx_port *sport)
sport->port.icount.dsr++;
if (changed & TIOCM_CAR)
uart_handle_dcd_change(&sport->port, status & TIOCM_CAR);
- if (changed & TIOCM_CTS)
- uart_handle_cts_change(&sport->port, status & TIOCM_CTS);
wake_up_interruptible(&sport->port.state->port.delta_msr_wait);
}
--
2.20.1
