4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
commit 7e620984b62532783912312e334f3c48cdacbd5d upstream.
Back in 2015 when irda was dropped from the driver imx1 was broken. This
change reintroduces the support for the third interrupt of the UART.
Fixes: afe9cbb1a6ad ("serial: imx: drop support for IRDA")
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Reviewed-by: Leonard Crestez <leonard.crestez@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/tty/serial/imx.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1997,6 +1997,14 @@ static int serial_imx_probe(struct platf
dev_name(&pdev->dev), sport);
if (ret)
return ret;
+
+ ret = devm_request_irq(&pdev->dev, rtsirq, imx_rtsint, 0,
+ dev_name(&pdev->dev), sport);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to request rts irq: %d\n",
+ ret);
+ return ret;
+ }
} else {
ret = devm_request_irq(&pdev->dev, rxirq, imx_int, 0,
dev_name(&pdev->dev), sport);
